baber/WOPTO huggingface dataset:
Patent GB-843572-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F7/00
Filed: 1958-04-08
Abstract: 843,572. Ventilators. PARSONS, W. G. April 1, 1959 [April 8, 1958], No. 11067/58. Class 137 A ventilator of the air-brick type comprises a box-like structure 1 inserted into an aperture in a wall of a room near the ceiling, there being an inlet opening 4 at one end of the unit controlled by a hinged flap 5 and a discharge opening 6 at the other end of the unit formed by a fixed baffle 7 or louvres arranged so as to discharge towards the ceiling, the discharge aperture being considerably larger than the inlet. The inlet and outlet may include tubular portions 2b, 3b telescoping within the structure 1 and adjustable lengthwise to accommodate different wall-thicknesses. The flap 5 is of mica.
Patent GB-449831-A (GB)
Title: Improvements relating to electric conductor couplings of the plug and socket type
IPC: H01R13/453
Filed: 1935-04-12
Abstract: 449,831. Plug couplings. PARSONS, Ltd., C. H., and HANDLEY, G. B., Wharfdale Road, Tyseley, Birmingham. April 12, 1935, No. 11300. [Class 38 (i)] The live sockets of a coupling are shielded by insulating rollers which slide in guides and are spring-pressed to the closed position. As shown the axles g of the insulating rollers h move in guides in the supporting plates e. The guides may be slots f, as shown in Figs. 1 and 3, or gaps s, as indicated in Fig. 8, whilst the springs, which maintain the rollers normally together, may bear on the rollers, as indicated at i in Figs. 3 and 8, or on the axles g as shown at k, Fig. 5.
Patent GB-635190-A (GB)
Title: Improvements in or relating to the internal wiring of electric cookers
IPC: F24C7/08
Filed: 1948-04-24
Abstract: 635,190. Electric cookers. CLIFTON AIRCRAFT. Ltd., and LANGSTONE, W. H. April 24, 1948, No. 11310. [Class 39 (iii)] [Also in Group XXXV] Ari electric cooker has a removable framework on which are mounted its current supply conductors and most, if not all, of its circuit controlling devices. The framework, 7 to 12 inclusive, extends along the back and one side of the cooker between the oven and an outer casing. The supply conductors are of stiff material having sockets at their ends for use with terminal blocks 27, see Specification 635,189, [Group XXXVI], fitted to the oven and the cooker hot plates. Switches 18 for the hot plates are mounted on the framework and have pin-and-slot or other detachable connections for use with operating rods extending from the cooker front. A knob on the cooker front is coupled to an oven switch on the cooker frame and is associated with an adjustable thermostat 26. The removable framework is bolted or screwed to the oven sides.
Patent GB-583808-A (GB)
Title: Improvements in and relating to an installation of telecontrol in particular for broadcasting by telephone lines with multiple programmes
IPC: H04H20/81
Filed: 1943-07-13
Abstract: 583,808. Exchange systems. WITTGENSTEIN, G. F. July 13, 1943, No. 11377. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 15, 1943.] [Class 40 (iv)] In a system for the distribution of wireless &c. programmes over telephone lines, a subscriber desiring this service grounds one of his line wires momentarily to cause the operation of a relay Q which locks up and starts a programme selector which advances slowly. At each step an announcing circuit is associated with the line over wipers 12, 13 to inform the subscriber of the programme connected for the moment to wipers 10, 11. When the desired programme is reached, the subscriber shunts out Q by a momentary ground connection on the other line wire, the selector is stopped and the programme circuit is connected to the line instead of the announcing circuit. In a modified circuit it is arranged that the programme selector moves rapidly by self-interruption over the positions of programmes to which the subscriber is not entitled to listen and in another modification, the selector moves rapidly over a group of terminals in response to a signal from the subscriber. Certain positions of the programme selector may be allotted to services other than programme distribution, e.g. an arrangement for diverting calls to a subscriber's line in his absence.
Patent GB-711934-A (GB)
Title: Improvements in or relating to cylinders for internal combustion engines
Inventor: PARRISH WALTER ALVIN
IPC: F02F1/10
Filed: 1952-05-06
Abstract: 711,934. Soldering and brazing. RESEARCH ENGINEERING CORPORATION. May 6, 1952, No. 11400/52. Class 83 (4). [Also in Group XXVII] In an internal-combustion engine cylinder wherein" sleeves 26, 27 and 28 and end flanges 24, 25 space a steel liner 20 from a steel jacket 41, the sleeves and flanges are provided with radial holes 32 filled with brazing material 33, e.g. copper slugs. The component parts of the cylinder are shrunk and tack welded in position and the assembly is then passed in a vertical position through a brazing furnace maintained at a temperature of about 2000‹ F. to melt the copper and complete brazing of the joints. Each square inch of brazed surface is provided with a minimum of 0.007 cubic inches of copper.
Patent GB-168583-A (GB)
Title: Improvements relating to the control of electrically operated fluid compressors
IPC: F15B1/033
Filed: 1921-04-20
Abstract: 168,583. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Aikman, B. S.). Aug. 31, 1920, [Convention date]. Valves controlled by pilot or relay valves; electrically-actuated valves.-A device for holding the suction valve of an electrically driven compressor open is actuated by fluid pressure, the supply and release of fluid being controlled in accordance with the current taken by the motor. The Figure shows a storage reservoir 3 supplied from the compressor and supplying fluid through a control device to a cylinder 4 containing a piston the stem of which can be depressed to hold the suction valve 7 of the compressor open. The control device comprises an armature 10 located within a coil 9, in series with the windings of the motor, and adapted when raised by excessive current at starting or during running to engage the stem 13 of a valve 11 carried by a looselyfitting spring-pressed piston 12 and thereby to lift the valve, opening communication between the reservoir and the cylinder 4. This cylinder is in communication with a vessel 18, provided with a leak 20, through a passage 19 which can be closed by the piston 12 when in its uppermost position. The armature 10 is supported at an adjustable height by a screw 21, so that the current strength required to raise it may be regulated. The raising of the valve by the armature first causes the valve 7 to be held open; the pressure then builds up above the piston 12, causing it to be slightly lowered by the spring and allowing the chamber 18 to fill and the pressure above the piston to be relieved, so that the valve does not close immediately, although the current may have fallen so far below normal as to permit the armature to fall. When pressure has risen sufficiently in the chamber 18, the spring closes the valve 11 on the piston, and the fluid escaping from the cylinder 4 through the passage 19 to the leak 20 will, after a predetermined interval, allow the suction valve 7 to close.
Patent GB-1130943-A (GB)
Title: Improvements in or relating to master cylinders for hydraulic brakes, particularly for hydraulic brakes of motor vehicles
IPC: B60T11/224
Filed: 1966-03-16
Abstract: 1,130,943. Hydraulic brakes. AUTOBRZDY JABLONEC NARODNI PODNIK. 16 March, 1966 [20 March, 1965], No. 11446/66. Heading F2F. A master cylinder of the kind having a large diameter piston 2 and a small diameter piston 6 working in a stepped bore, and comprising an arrangement of valves and passages such that the delivery of a large volume of fluid at low pressure at the outlet 11 is followed by the delivery of a smaller volume at higher pressure, has a passage 31 in the small diameter piston 6, so that initially the latter is ineffective, and a valve 24 carried by a stem 25 for closing this passage, the stem being slidable in a twopart sleeve 12, 13 which also contains a ball valve 15 loaded by a spring 17, the arrangement being such that when a predetermined output pressure is exceeded the ball valve opens and allows fluid to escape to the reservoir (not shown), by way of a restricting orifice 19; piston 2 then moves until valve 24 contacts piston 6 and closes the passage 31, whereupon extension pin 28 of stem 25 engages the ball valve to maintain it open, the output being subsequently at the higher pressure determined by the smaller diameter of piston 6, which is pushed along by the stem 25. The piston 2 carries a slidable seal 3 on its flange 33 which, during the return stroke of piston 2, uncovers radial passages 35 communicating via axial passages 34 with the low pressure chamber in front of piston 2, so that fluid can return to this chamber freely from the reservoir.
Patent GB-1448396-A (GB)
Title: Magnetic tape reproducing apparatus
IPC: G11B15/18
Filed: 1974-03-14
Abstract: 1448396 Magnetic tape playback apparatus SHIN-SHIRASUNA ELECTRIC CORP 14 March 1974 11471/74 Heading G5R Magnetic tape playback apparatus automatically transports tape at a first speed for playback by a head 22 in response to insertion of a tap cassette 5 into receiving means 6a, 6b and has a slidable chassis 2 with means 10 engageable by the cassette on such insertion to move chassis 2 from a first position to a second position, an actuator (24), Figs. 3, 6 (not shown), on chassis 2 actuating the tape transport at said first speed in response to movement of chassis 2 to its second position, and there being a fast-forward mechanism with a manually operable locking means 57, 42 engageable with a lock pin 59 on chassis 2 to lock the apparatus in the fast forward state when the chassis is in its second position, the locking means having indicating means to enable a user to confirm by touch the position of the locking means. When the cassette 5 is inserted between guides 6a, 6b, it pushes down a pivoted member 7 against a spring 9 and then a sub-chassis 2, mounted on a main chassis 1 so as to be slidable rearwardly and upwardly relative thereto, is caused to move in that direction by engagement between cassette 5 and a pin 10 on chassis 2 and a further pin (14), Fig. 4, (not shown), thereon. When the cassette has been fully inserted, reel shafts 15a, 15b on chassis 2 engage with the cassette tape reels, a capstan 16 on chassis 2 engages the tape 5<SP>1</SP> with the aid of a pinch wheel 17 on chassis 1, a stereo playback head 22 on a slide 23 engages tape 5<SP>1</SP>, and a projection (24), Figs. 3, 6 has closed a switch (25) to energize a motor 26 thereby driving capstan 16 and shaft 15a for playback at normal tape speed, switch (25) also energizing a solenoid (27) whereby the plunger 28 thereof engages a part 32 of a locking lever 29 with pin 10 to maintain the playback state. On pushing in the slider 23 together with a locking lever 42, roller 27 and head 22 are retracted from the tape 5<SP>1</SP> and a switch (not shown) is operated to cause motor 26 to drive tape 5<SP>1</SP> at a fast forward speed. The apparatus can be locked in the fast forward state by rotating lever 42 anticlockwise about its pivot pin connection 45 to slider 23 whereby a part 48 of lever 42 lockingly engages with pin 59. Normal playback is automatically restored on rotating lever 42 clockwise and then releasing members 23, 42. Provision of a pin 52 on slider 23 so that pin 52 moves from one part 49a to the other 49b of a B-shaped aperture 49 in lever 42 as the latter is rotated to the locking position, enables the establishment of such locking to be sensed by touch. The apparatus can be switched off during both normal playback and fast forward transport by pushing in a slider 40 to operate a switch (not shown) and thereby de-energize solenoid (27), whereby pin 10 is released from locking lever 29 and chassis 2, together with capstan 16, motor 26 and shafts 15a, 15b, slides down and forwards to the inoperative position.
Patent GB-114816-A (GB)
IPC: H01M50/40
Abstract: 114,816. Morrison, W. April 2, 1917, [Convention date]. Separators.-Wooden or other porous plates are impregnated with an insoluble strontium compound, to diminish their porosity and prevent " treeing." They may be soaked first in a hot solution of strontia and then in a solution of a precipitant such as sulphuric acid or a sulphate. They are preferably kept moist until used. Specification 111,469 is referred to.
Patent GB-114975-A (GB)
IPC: G01K5/16
Abstract: 114,975. Greaves, A. M. de S. Oct. 1, 1917. Alarms operated by expansion of liquids. - A thermal contact-maker for use in a fire-alarm comprises a thermometer tube 12 having an enlargenient 17 at its upper end within which is a partition 22 carrying contact wires on either side connected to binding posts 28, 29. In the form shown in Fig. 2, the apparatus is made in two parts, the lower part comprising the thermometer tube with the enlargement terminating in a conical part 19. The upper part comprises a stopper made of insulating-material fitting the conical opening 19 and carrying wires 34, 35, which extend to just above the end of. the capillary tube and just below the end of the conical partition 22. These wires are connected at their upper ends to binding-posts carried by cylindrical parts 23, 24. In the form shown in Fig. 6, the apparatus is formed in one piece with bent spring contact wires 34<1>, 35<1>, which slide in the extensions 23' and are adjusted as to height by the nuts 30<1>. 31<1> so as to adapt the apparatus for different temperatures. In this form, the wires may be raised to touch the partition 22' and thus remove any trace of mercury.
Patent GB-126645-A (GB)
Title: Improvements in Folding Typewriters.
IPC: B41J3/37
Filed: 1919-05-08
Abstract: 126,645. Hammond Typewriter Co., (Assignees of Krusius, E.). May 8, 1918, [Convention date]. Folding type - lever machines; space-key and shift-key actions.-(1) An extension 13, Fig. 1, carrying the keyboard is pivoted in standards 11 on the base 10, and is automatically locked in working position by means of lingers 17, Fig. 6, on the part 13 engaging in grooves 16 in the part 10, and a pin 24<1> on one of the fingers 17 engaging with a. spring catch 18 on the part 10. The catch 18 is released by means of a finger-piece 23. (2) The key-levers 27, Figs. 1 and 5, are loosely pivoted on knife-edge bearings and are automatically locked against displacement in the folding movement by means of a bar 33, which is depressed by the action of springs 38 on downturned ends 35 of the bar, and is raised by engagement of the ends 35 against fingers 39 on the base 10 when the keyboard extension is swung down into operative position. (3) The space-key 51, Figs. 1 and 5, is carried by fingers 49 pivoted at 50 on arms 45, 46 so that the spacekey can swing into the folded position shown in Fig. 5. The arms 45, 46 are provided with lugs 48 for engagement by the fingers 49 in the operative position. (4) The shift-key levers 52, 53, Figs. 1 and 7, actuate the vertical plunger 57 through an arm 58 on a rock-shaft 59. The levers 52, 53 are loosely mounted on the rock-shaft and are engaged by a cross-pin 63 on a hub on the rock-shaft, contact being maintained by the action of a spring 60, which also holds the arm 58 normally clear of the plunger 57. The arm 58 bears against the table or other support of the machine, as shown in Fig. 5, in the folded position. (5) The keyboard extension is provided with a pivoted foot 40, Fig 5, which automatically drops against the bottom surface of the extension in the folded position, and into vertical supporting position when the extension is turned down into operative position. Keyboards.-The keyboard, arranged in three banks, includes the shift keys, a margin-stop release key, and a back-spacing key.
Patent GB-904134-A (GB)
Title: Improvements in or relating to valve bodies
IPC: F16K27/10
Filed: 1961-03-30
Abstract: 904,134. Making valves. DEWRANCE & CO. Ltd. March 30, 1961 [April 4, 1960], No. 11635/61. Class 83 (2). A method of making a globe valve body comprises forging a central portion 1 to form an open-ended cavity 4, 5 on each side of a valve seating wall 7 and circumferentially welding connection pieces 2, 3 to the respective ends of the portion. A flange 10 is welded to the portion 1 and annular grooves 12, 13 and 14, are machined prior to welding. The body is drilled at 11 and through the seating wall 7 to accept a valve and spindle assembly (not shown).
Patent GB-752490-A (GB)
Title: Improvements in or relating to electrically actuated step-by-step mechanism
IPC: H02K7/065
Filed: 1954-04-22
Abstract: 752,490. Ratchet gearing. NORTHROP AIRCRAFT. Inc. April 22, 1954 [June 8, 1953], No. 11638/54. Class 80(3) An electrically actuated ratchet device for obtaining stepped movements of a shaft in response to electrical impulses comprises a solenoid coil 15. Fig. 4, an axially movable armature 9. an inclined groove 20 and ball 21 for converging the axial movements of the armature into angular ones a rotary sleeve 22 and pawl carrier disc 23 secured to the armature a driving pawl '25 on the disc 23 and a driven disc 32 secured to the driven shaft 13 and having holes 33 adapted to be engaged by the driving pawl 25. After each actuating movement the armature 19, sleeve 22, disc 23 and pawl 25 are adapted to be returned by a spring 30. Back and front cam stops 28 and 29 are secured to the fixed plate 16 which hold the pawl 25 out of, or move it into, engagement with the driven disc 32, these stops projecting into' an arcuate groove 24 in the carrier disc 23 in which the pawl 25 is mounted. Two such devices may be arranged one on each side of the driven disc 32 and may be adapted to drive the disc and its shaft 13 in the same or opposite directions.
Patent GB-512507-A (GB)
Title: Time-switch for traffic direction indicators
IPC: H01H7/08
Filed: 1938-04-19
Abstract: 512,507. Retractive switches. MORAT, H. April 19, 1938, No. 11641. Convention date, May 19, 1937. [Class 38 (v)] A time-delay switch for traffic direction indicators comprises a hand lever s which can be moved from a horizontal off position, Fig. 2, to the position shown in Fig. 1, to give a "right" or "left" signal. During this movement a member a rigid with lever s engages a part u of a lever h to turn the lever about its pivot x against the action of a return spring f and a forked part g of lever h engages a pin w to turn a lever v about a pivot c. On release of lever s the parts return due to spring f and a time delay is introduced by a pawl k on lever v engaging a wheel of a fly train. The return movement ends when the member a is held between the part n and a stop pin u on lever v, Fig. 2. If lever s is turned anticlockwise from the central position, part n engages pin u to turn lever v which by means of pin w turns lever h in the same direction as before and the same delayed return results. The arm a may be replaced by a cam having two operative edges.
Patent GB-768438-A (GB)
Title: Improvements in photographic light sensitive emulsions
IPC: G03C1/043
Filed: 1955-04-22
Abstract: 768,438. Photographic emulsions. KODAK, Ltd. April 22, 1955 [April 29, 1954]; No. 11643/55. Class 98(2) A photographic silver halide emulsion of which the light-sensitivity has been increased by the incorporation therein of an alkylene oxide polymer or derivative thereof (e.g. a polyalkylene glycol, or a condensation product of an alkylene oxide with a glycol, phenol, or hexitol ring dehydration product or with an aliphatic alcohol, amine or acid, the alkylene oxide preferably containing from 2 to 4 carbon atoms and the polymer preferably having a molecular weight of at least 300) is stabilized by the incorporation of urazole. The addition does, not affect, the hardening action of the alkylene bis-esters of methane sulphonic acid of Specification 729,345, e.g. 1 : 5 - bis - (methanesulphonoxy) - pentane. The polyalkylene oxide (polyalkylene glycol) used may be derived from ethylene, propylene or butylene oxide. Condensation products of ethylene oxide with long chain alcohols should have a molecular weight of about 700, while other derivatives may have a molecular weight of 1500 to 4000 or more. The emulsion may be additionally sensitized by digestion with naturally active gelatin or by the addition of sulphur, ruthenium, rhodium, palladium, iridium; platinum, or gold compounds or of reducing agents such as diethylenetriamine or spermine or bis - (# - aminoethyl) - sulphide or its water-soluble salts. The emulsion may be optically sensitized with cyanine or merocyanine dyes or both, and may be stabilized with the mercury compounds of Specifications 742,219, 742,221, or 742,224. The urazole may also be incorporated in a colloid (gelatin) layer contacting the emulsion. In Example 1, speed, gamma and fog data before and after incubation under two sets of conditions are given for a silver bromiodide emulsion which has been digested with a sulphur compound as disclosed in Specification 235,211 [CLass 98(2)] and potassium chloraurate, chemically sensitized with polyethylene oxide oleyl ether; portions of this emulsion are tested with. no further addition and with urazole. Example 2 is similar using an emulsion which is also panchromatically sensitized and which is tested using two different quantities of urazole under one set of incubation conditions. Example 3 is similar to Example 2 but includes data for a portion containing both urazole and 1 : 5 - bis- (methanesulphonoxy) - pentane. Specifications 380,431, 380,851, 443,559 [all in Group III], 548,019, 592.676, 600,058, 602,158, 602,160, 618,061, 636,140, 658,592, 661,645, 663,019, 664,230, 680,593, and 682,355 also are referred to.
Patent GB-464720-A (GB)
Title: Improvements in and relating to the manufacture of cement
IPC: C04B7/21
Filed: 1936-04-23
Abstract: Calcium sulphate is rendered suitable for use in the manufacture of slag cement by calcining it at a temperature between 850 DEG  C. and that of decomposition for a very short time (5--10 min.), the size of the particles being such as to ensure uniform calcination, e.g. less than 9 mm. diameter.  The temperature is dependent on the amount of impurity present, and should be as high as possible.  Specification 437,855 is referred to.ALSO:In slag cements made by grinding together blast furnace slag and a substantial proportion of calcium sulphate, the sulphate is calcined at a temperature between 850 DEG  C. and the temperature of decomposition, for a short time (5-10 mins.) the particle size being such as to ensure uniform calcination, e.g. less than 9 mm. diameter.  The temperature is dependent on the amount of impurity present, and should be as high as possible.  Suitable proportions are 830 kg. of slag to 170 kg. of calcium sulphate. Portland cement clinker or lime may also be added to the cement. Specification 437,855 is referred to.
Patent GB-493319-A (GB)
Title: Improvements relating to lattice arms for awnings or blinds
IPC: E04F10/06
Filed: 1937-04-23
Abstract: 493,319. Linkwork. ADAM & LANE & NEEVE, Ltd., and TIETJEN, P. E. April 23, 1937, No. 11655. [Class 80 (iii)] [Also in Group X] A lattice linkwork having a member b, for supporting a sun-blind, is provided with stops to maintain the member b horizontal when extended and the sun-blind lathe adjacent the casing f when the lattice is collapsed. The link c<3> has a U-shaped clip c<5> on an extension to support the member b when extended and an extension of the lattice pivot h to engage an end b<1> of the member when the lattice is collapsed, Fig. 3. Both stops may be provided on one bracket attached to an extension of the link c<3>, or may be formed on the link and the member b provided with a bend to engage that for the closed position.