baber/WOPTO huggingface dataset:
Patent GB-809203-A (GB)
Title: Improvements in or relating to automatic control systems for central heating plants
IPC: G05D23/24
Filed: 1956-05-15
Abstract: 809,203. Automatic temperature-control systems. REGULATOR A.G. May 15, 1956 [May 16, 1955], No. 15165/56. Class 38 (4). [Also in Group XXXVIII] In an arrangement wherein the temperature in a building is maintained substantially constant by at least two temperature-sensitive resistors A, B disposed one in the rising pipe and the other at the external surface of the building body and forming part of a bridge which is arranged to adjust through an amplifier F and a motor-operated valve MV the temperature of the fluid in the rising pipe, two further temperature-sensitive devices M, D, one of which M has a delayed response time of the same order as the heat lag of the building are provided and connected so that rapid external temperature changes do not cause room changes in the building temperature during transient conditions. Resistors M and D which are part of a second bridge connected in series with the first produce an output across potentiometer TN during ambient temperature changes which aids the output of the main bridge. A construction and mounting arrangement of the two further thermistors providing for them to be swept uniformly by atmospheric air is described with reference to Fig. 3 (not shown), the temperature-sensitive resistor having the delayed response time being obtained by disposing the resistor in a delaying heat transferring medium.
Patent GB-612353-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06F7/498
Filed: 1946-05-20
Abstract: 612,353. Electric calculating machines. NATIONAL CASH REGISTER CO. May 20, 1946, No. 15180. Convention date, June 25, 1943. [Class 106 (i)] A calculating device includes a driven member adapted to be moved by a driving means through a plurality of selectable positions, and selectively operable electrical control means directly carried by the driven member to control the positioning and stopping of the driven member in any selected position. For each denomination, ten equally-spaced gas discharge tubes 51 are mounted on a plate 37 adapted to be rotated through a friction disc 35 by a reversible motor 34. The potential normally applied to the tubes is insufficient to initiate conduction although sufficient to maintain one tube conducting if it has already been started. Depression of a key 45, Fig. 1, closes corresponding contacts 108, 140-147, Fig. 4, to apply a temporary boost in potential to whichever tube is in contact with the corresponding firing contact " 1 "-" 9 " spaced round a fixed commutator, Figs. 2, 4, whereupon this tube fires while the potential applied to the tube at the registering position, which was previously conducting, is momentarily depressed through a series of condensers 62, so that the latter tube is extinguished. This drop in potential is conveyed by contacts 60, 72 to the grid of a vacuum tube 46 which also becomes non-conducting to de-energize a solenoid 43, whereupon a pawl 41 is retracted by a spring to allow the plate 37 to be rotated clockwise a number of steps corresponding to the key depressed, by the friction disc 35 and the motor 34. The rotation stops when the conducting tube 51 reaches registering position behind a window 44 and its contact 60 engages the contact 72 to raise the grid potential of the tube 46 to re-engage the pawl 41 with the plate 37. Tens transfer. As the disc 37 passes from 9 to 0, a contact 86 engages a fixed contact 87 to energize a solenoid 301 which applies a pulse to the firing contact " 1 " of the next higher denomination to add unity. Subtraction. Depression of a subtraction key S reverses the motor and shifts a set of contacts (Fig. 5, not shown) so as to apply potential to the firing contact corresponding to the tens complement of any key depressed. Transfer occurs as the " 0 " tube passes from registering position in a counterclockwise direction through the contacts 86, 87. Zeroizing. The register is cleared by depression of a key Z which applies potential through a ring 80 and a conductor 130 to the zero tubes 51 of all denominations so that these tubes fire and are stepped to registering position in the manner already described. Keys. To ensure only a momentary pulse being applied to the selected firing contact even if a key is held depressed, contacts 200, Fig. 6, are closed by a nose 204 on the key stem and open again when the key is fully depressed. Indicating. The tubes 51 are capped by transparent discs 53 bearing the appropriate numerals. Operation. A number is entered by depressing the appropriate keys one at a time.
Patent GB-653091-A (GB)
Title: Packing strap
IPC: B65D63/14
Filed: 1948-06-04
Abstract: 653,091. Straps and bands. BRAMSON, J. June 4, 1948, No. 15182. Convention date, Aug. 2, 1947. [Class 109] In a strapping arrangement for a package comprising a paper strap 2, a linking plate 18 having an aperture arranged to receive the ends of the strap, and staple means 20, 22 for fastening each end of the strap passing through the aperture to the body portion of the strap, the strap comprises a paper strip 6, Fig. 1a, having its longitudinal edge portions folded inwardly into abutting relationship along its median line and secured by adhesive 10 to the 'body of the strip, one of the infolded portions then being folded into superposed relationship with the other infolded portion and again adhesively secured thereto to form the strap of four laminae, Fig. 1c, with a layer of adhesive between each lamina. The longitudinal edges of the strap are thus formed by round folding seams 12, 13, and 14. The strap may be compressed between a pair of grooved rolls, and if desired passed through a bath of varnish or waterproofing solution. A strip of stronger material than paper may be folded into the strap. The linking plate 18 may be used for connecting a second paper strap 3 perpendicular to the first.
Patent GB-886906-A (GB)
Title: A new or improved lock for doors and the like
Inventor: HAYWARD FRANCIS VINCENT
IPC: E05B13/00
Filed: 1958-05-13
Abstract: 886,906. Latch spindles; locking. COOKE & SON Ltd., T. J. March 13, 1959 [May 13, 1958], No. 15238/58 Class 44. A lock for use with a door provided with a latch operable by a door handle secured to a spindle of non circular cross-section; comprises a rose with a hole for the spindle and a locking member 3 manually movable between free and locking positions, the locking member 3 being movable in a plane parallel to the principal plane of the door and having a keyhole type slot 5, 6 which in the free position allows the spindle to rotate in a circular, portion 5 of the slot and in the locking position prevents the spindle'from turning. The rose is formed of an inner shell 1 and an outer shell 8 the locking member being situated, between the shells and being actuated 'by a lug 10.
Patent GB-1135822-A (GB)
Title: Process of manufacturing unfired refractory bricks and compositions of magnesia-chromeand chrome-magnesia
IPC: C04B35/42
Filed: 1966-04-06
Abstract: 1,135,822. Magnesia-chrome bricks. OSTERREICHISCH AMERIKANISCHE MAGNESIT A.G. 6 April, 1966 [13 April, 1965], No. 15406/66. Heading C1J. Unfired refractory bricks of magnesia-chrome and chrome-magnesia are produced by mixing substances containing Cr 2 O 3  and substances which yield MgO on firing such that the mixture has a lime-silica molar ratio of at most 0À6 and a silica content of at most 5À5% by weight, shaping and sintering the mixture without fusion at a temperature of at least 1750‹ C., granulating the sintered material, optionally mixing with sintered magnesia, and then shaping into bricks. Preferably the starting materials are chromites at least 65% of which have a particle size above 0À12 mm., and magnesite of particle size up to 5 mm. The sintered magnesia has a particle size of at most 0À12 mm. and may be added to the sintered and granulated material in amount of at most 8%. The sintered material may contain 5-40% Cr 2 O 3 . Saturated kieserite solution or sulphite liquor may be used as binder in the shaping steps.
Patent GB-1263668-A (GB)
Title: Cathode ray tube bistable storage apparatus
IPC: H01J29/10
Filed: 1970-04-01
Abstract: 1,263,668. Cathode-ray storage tubes. TEKTRONIX Inc. 1 April, 1970 [16 April, 1969], No. 15459/70. Heading H1D. In a cathode-ray storage tube comprising a high-velocity writing gun and a low-velocity flood gun adapted to produce secondary emission at the target to cause bi-stable storage of a charge image, the target comprises a dielectric layer 40, Fig. 3, deposited on a conductive layer 42 on a support 14 and is characterized by the provision of a collector electrode 44 in contact with the layer 42 and adapted to collect secondary electrons. The collector electrode 44 may be a mesh held at the optimum potential (+ 170 volts) for secondary electron collection, whilst the target electrode 42 is normally at earth potential and may be pulsed to + 200 V. to erase the charge image. This erasure takes 1 to 5 milliseconds, and is so fast that the erase electrode may be pulsed at 60 cycles to operate the tube in a non-storage mode. The target electrode 42 may be divided into two horizontal strips energized independently (Fig. 2, not shown), or into a number of vertical strips. The dielectric layer 40 is preferably a continuous phosphor layer to provide an optical output, but may comprise a number of islands of phosphor material or may comprise non-luminescent material, and the writing gun may also be used for reading to produce an electrical output from electrode 44. The electrode 44 is preferably of light-reflecting material such as aluminium to increase the brightness of the optical image, and may be coated on the phosphor by vapour deposition through a mask; it may comprise 200 lines/inch with an electron transmission of 80%. The substrate 14 may be a glass faceplate which is sealed to the ceramic envelope 58 with crystallized glass 60, with tin oxide coatings extending through the seal to form lead-in connections to electrodes 42 and 44. The tube may include two flood guns at earth potential and a writing gun at - 3000 V. (Fig. 1, not shown).
Patent GB-1430037-A (GB)
Title: Conveyors
IPC: B65G17/48
Filed: 1974-04-08
Abstract: 1430037 Endless conveyers KORNYLAK CORP 8 April 1974 [20 April 1973] 15514/74 Heading B8A In a conveyer comprising shelves 4, connected by bearings 8 to an endless chain 9 trained round a sprocket 10, and having rollers 24, 25 guided in guides 26-29 to maintain the shelves either vertically or horizontally disposed according to the conveyer run, the roller 24 is positively guided into a transition guide 28<SP>1</SP>, leading to the guide 28, by the engagement of the roller 25 in a transition guide portion 32, the roller 25 passing to the portion 32 along a transition guide portion 31 and passing to the guide 29 along a transition guide portion 33 which intersects the transition guide 28<SP>1</SP>.
Patent GB-317906-A (GB)
Title: Improvements in and relating to the sharpening of safety razors
IPC: B24D15/08
Filed: 1928-05-26
Abstract: 317,906. Amesbury, W. L. R. May 26, 1928. Strops and stropping-apparatus.-In a device for sharpening razor blades the blade n is held flat on a resilient bed and has its edges subjected to an alternating up and down bending action in the presence of an abrasive, the edge being at the same time gripped between the bed and a movable roller. The bed, which is provided with a honing side b and a finishing side c, comprises a corrugated metal strip d covered by layers e h of sponge rubber and layers f, k of vulcanized rubber. The honing and finishing surfaces g, l respectively are of leather treated with abrasive, the finishing surface being preferably of soft leather such as chamois. The layers are secured together by cement and by end clamps m. The blade n is held beneath a strip o which fits in grooves p in side plates a. The roller q which consists of a vulcanite core surrounded by a rubber layer r and covered by soft leather s, is mounted in a stirrup t which is slidable along slots w in the side plates a, ball bearings being provided. By sliding the stirrup to the ends of the slots w, the roller may be moved round to either side of the sharpening bed. In operation, the device is held in the left hand and the roller is reciprocated to and fro over the blade, the resilience of the bed causing the edge to be bent alternately up and down to effect the sharpening. The device may be fitted with a metal tray z. According to the Provisional Specification, the blade is treated between a pair of resilient beds mounted on a hard corrugated base and the flexure of the blade to effect the sharpening is produced by means of a corrugated roller which is moved to and fro over the upper bed.
Patent GB-852251-A (GB)
Title: Method and apparatus for the contactless measurement of length
Filed: 1957-05-16
Abstract: 852,251. Photo-electric measurement of width. HUTTENWERK OBERHAUSEN A. G. May 16, 1957 [May 16, 1956], No. 15637/57. Class 40(3). The width of an object 7 is measured by scanning it with a slit diaphragm 4 on an opaque belt 3 moved at a constant speed between the object and a photo-electric cell 5, and by measuring the duration of an electric pulse generated by the light reflected on the photoelectric cell from the object 7. The pulse thus produced is  then split into two pulses representing its beginning and end which are then rectified to the same polarity. An electronic counter responding to a certain voltage and adjusted in accordance with the frequency of the generator and to the speed of the belt 3 is triggered by the two pulses to produce timed pulses which it counts as a measure of the width of the object. For remote operation with the diaphragm 4 at 90 degrees to the object 7 a television camera with an optical axis parallel to that of the apparatus is coupled to perform like movements about an axis common to the camera and the apparatus.
Patent GB-699409-A (GB)
Title: Electric circuit switching apparatus which is operable by a coin or the like
Inventor: BOWSHER EDWARD ALBERT HENRY
IPC: G07F17/28
Filed: 1950-06-22
Abstract: 699,409. Coin-freed apparatus for delivering electricity; wired wireless. COMMUNICATIONS PATENTS, Ltd. Sept. 21, 1951 [June 22, 1950], No. 15644/50. Class 27 Coin discharging mechanism. Coin action; electric connection. An inserted coin is guided to a position in which it closes contacts in an electric circuit by a shoot 18 (Fig. 1) which can be moved by electromagnetic means to discharge the coin. In the form illustrated 'the shoot 18 is formed of insulating material and the coin directly bridges contacts 21 (see also Fig. 4) which may be .resilient. The shoot 18 is carried by the armature 16 of a Post Office 3000 type relay 14 without a contact set so that when the relay is operated the shoot, part of a wall of which is extended at 24 behind the coin, is swung to push the coin off the contacts 21 whence it falls into a coin box 10. Wired wireless. The contacts 21 bridged by the coin control a loudspeaker 29 (Fig. 5) supplied through a transformer 7, a volume control 26, and a programme selecting switch.25, with signals transmitted over lines A, B, C and D from a central station. The relay 14 by which the coin is discharged from the contacts 21 is connected across the lines D for operation when a direct current is applied to this pair by a change-over switch 31 at the central station.
Patent GB-393086-A (GB)
Title: Improvements in extra air admission devices for internal combustion engines
IPC: F02D9/00
Filed: 1932-06-04
Abstract: 393,086. Auxiliary-air admission. BUCK, W., Sedgwick Street Works, Preston. June 4, 1932, No. 15723. [Class 7 (ii).] Extra air is admitted to the induction pipe by passages or ports of very small size extending directly from the outer edge of a flange shaped plate to a central aperture therein without the addition or interference of any controlling or regulating valve &c. or any additional ducts into which the air passes before mixing with the fuel. The air is admitted through bores a<1> in a flange shaped plate A having its central aperture A<1> tapered from the carburetter to the engine side. The bores may be tapered or be provided at their outer ends with plugs a<2> having fine holes a3 longitudinally therethrough. The plate is secured between the flanged ends of the carburetter and induction pipes and the bores a<1> may be replaced by grooves in the faces of the plate or of two superposed plates.
Patent GB-164349-A (GB)
Title: Improvements in sound-reproducing machines
IPC: H04R7/12
Filed: 1921-06-07
Abstract: 164,349. Davis, W. H., (Assignee of Hopkins, M. C.). June 7, 1920, [Convention date]. Drawings to Specification. Diaphragms, shape of. A large diaphragm is of conical' form and is made of paper or the like.
Patent GB-1173399-A (GB)
Title: Three Head Laundry Press
IPC: D06F71/00
Filed: 1968-04-02
Abstract: 1,173,399. Laundry presses. McGRAWEDISON CO. 2 April, 1968 [13 Nov., 1967], No. 15772/68. Heading D1A. In a laundry press comprising lower intermediate and upper bucks 14, 20, 22 with complementary .perforated surfaces, the upper buck 22 is closed against the intermediate buck 20 only when it is tight against the lower buck 14, an additional high pressure is then applied to the bucks and steam is discharged from the intermediate buck, which is also separately heated, e.g. by steam, and a vacuum is applied to the upper and lower bucks, and when the high pressure is released, the upper buck is raised before the intermediate buck rises a small amount. The lower buck 14 is mounted on a table 13 to which levers 50, 52 connected to bucks 20, 22 are pivoted by a pin 18. Bucks 14, 22 each comprise enclosures 24, 39 with steam lines 26, 40 and vacuum lines 28, 44 and have respectively upper and lower perforations 30, 42 covered by padding 14, 22 and lower and upper asbestos covers 46. Buck 20 is of glossed metal and comprises a closed inner chamber connected to a steam line 33 and a perforated outer enclosure 34 connected to a steam line 37. A power cylinder 54 is pivoted to the press supporting frame 12 and to lever 50 which is also connected to frame 12 by spring 58 and also by levers. 64, 63 and damping mechanism 62. The lever 52 is similarly connected to frame 12 by power cylinder 68, tension springs 72 and damping means 76. Power cylinder 80 exerts a large force on the closed press. After pressing, the upper buck is lifted completely and the intermediate buck only partially by the foot 92 of cylinder 88 which engages lever 50 to move it against the action of cylinder 54. In operation, to press trousers one trouser leg is spread on buck 14 to which vacuum is applied by pressing footpedal FP2. Push buttons PB.1, PB.2 are pressed to operate the appropriate valves and to lower buck 20 on to buck 14 and the second leg is then dressed on buck 20 to which a vacuum is applied and buttons PB.1 and PB.2 can be released. The intermediate buck 20 can if required be released by pressing foot pedal FP.1. Push buttons PB.1 and PB.3 are then pressed and the upper buck 22 is lowered on to bucks 20 and 14 after which buttons PB-1, PB.3 can be released and foot pedal FP.1 is prevented from releasing buck 20. Buck 22 can be released by momentary pressure on button PB.4 and buck 20 will be lifted slightly at the same time. Some of the operations of the press may be controlled by a timer.
Patent GB-885708-A (GB)
Title: Improvements in apparatus for measuring the quantities of heat supplied by a hot water supply system
IPC: G01K17/14
Filed: 1960-05-04
Abstract: 885,708. Integrating-apparatus. COMPAGNIE DES COMPTEURS. May 4, 1960 [June 2, 1959], No. 15774/60. Class 106 (4). [Also in Group XX] Apparatus for measuring the quantity of heat supplied by a hot-water supply system at variable temperature comprises a water meter 1 which drives a counter 32 for a fraction of each revolution of the meter 1, the fraction depending on the temperature of the water. A bimetallic strip 3 has a rod 5 at one end which angularly moves a fork member 6 and, through shaft 6<SP>1</SP>, toothed wheels 7, 8 and shaft 10, a pointer 10<SP>1</SP> associated with a dial 10<SP>11</SP>. A sector 9, on shaft 10, has a toothed portion 9<SP>1</SP> meshing with wheel 12 associated with a cam arm 15, so that the angular position of arm 15 depends on the temperature of the water flowing through meter 1 as detected by the strip 3. A spiral spring 13 anchored at 14 and attached to wheel 12 and arm 15 takes up play, and tends to return the bi-metallic strip 3 to its cold position. Coaxial with wheel 12 and arm 15 is a shaft 16 driven in a clockwise direction by meter- 1 through gears 17, 18, the shaft 16 driving a plate 19 and also, through gears 37, 38, a counter 39. As the plate 19 rotates, a rod 33 on a pivoted lever 27 carried by the plate 19, abuts a cam 34 on sector 9 to displace the lever 27 about its pivot 25 and, through a hairpin spring 28, cause corresponding displacement of a second lever 26 on plate 19. An arm 26<SP>1</SP> on lever 26 is thus caused to engage a toothed wheel 29 connected by gears 30, 31 to the counter 32 so that the latter is driven. When rod 33 abuts arm 15 the lever 27 is pivoted back again, lever 26 follows and consequently arm 26<SP>1</SP> is disconnected from the wheel 29. The angular displacement of levers 26, 27 is limited by conically ended fingers 20, 21, adjustable in height by nuts 22, 23. If the water temperature is below a predetermined value a conical stud 11 on sector 9 bears on the heel 34<SP>1</SP> of cam 34 to rock the latter below the horizontal plane of movement of rod 33 so that counter 32 is not driven.
Patent GB-447452-A (GB)
Title: Improvements in or relating to refractory building materials, more particularly mortars
IPC: C04B35/16
Filed: 1935-05-30
Abstract: A refractory building-material, particularly for use as a mortar, contains olivine as its principal constituent together with a binding agent which forms a viscous glass in amount sufficient to bond the olivine at temperatures below that at which the olivine takes on its set, i.e. 275 to 1150 DEG  C.  The binding agent, which may range from about 20 to 25 per cent of the olivine, may be a single substance or a mixture, as of substances which bond in the cold, e.g. alkali silicate or aluminous cement, and substances which react with the cold binder to form the glass, e.g. a borate.  The olivine may be in part replaced by chrome ore or deadburnt magnesite.  A plasticizer such as gum arabic may be used.  In an example the binding agent consists of colemanite, sodium silicate, clay and quartz.  Other materials referred to are other boron compounds, artificial borates, boro-silicates or borophosphates and powdered glass.
Patent GB-1361711-A (GB)
Title: Fuel gases
IPC: C10L3/02
Filed: 1972-04-06
Abstract: 1361711 Gaseous fuels LINDE AG 6 April 1972 [20 April 1971] 15866/72 Heading C5E A fuel gas for heating, melting, welding and cutting metals comprises, in mol. percentages : 1 to 35 acetylene; 23 to 90 propane, or propylene, or cyclopropane, or a mixture thereof; 8 to 75 methylacetylene, or propadiene, or a mixture thereof; and 1 to 20 paraffinic or olefinic C 4  hydrocarbons, or a mixture thereof.