baber/WOPTO huggingface dataset:
Patent GB-1103266-A (GB)
Title: A telescope device having means for its adjustment to the sensibility threshold of the human eye
IPC: G02B23/12
Filed: 1965-04-06
Abstract: 1,103,266. Determining range of visibility. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. April 6, 1965 [April 7, 1964], No. 14518/65. Heading G1A. In a telescope device in which the light-beam is arranged to fall on a photo-electric cell 13, compensation for the sensibility threshold of the human eye is introduced by a threshold stage which produces an output when the current due to a variable flux being viewed exceeds a comparison quantity based on the background luminous flux (Bu) and the threshold luminous intensity of the eye (E<SP>1</SP>). A constant value is used for large luminosities in conjunction with an element 12 of adjustable transparency e.g. a grey wedge, in front of the photo-cell, and a value varying in proportion to the value E<SP>1</SP> / Bu is used in a range of small background luminous intensities. The grey wedge 12 is adjusted by a motor 17 and gearing 18 in response to the signal received from the photo-cell by controller 14, and the resulting constant input to controller 14 is used to produce the high-range reference voltage for threshold stage 15. The low-range reference voltage is derived either from the photo-cell D. C. signal or from the level of photo-noise. The apparatus is used for determining the range of visibility and may be used in conjunction with a blinking buoy or a row of lights over which it is scanned. The output of the threshold device may, in the latter arrangement, control a relay 23 whereby the pulse output from a digital disc 19 which is indicative of its angular position is keyed to line.
Patent GB-1511053-A (GB)
Title: Polymeric material having a thermochromic coating
IPC: C09D5/26
Filed: 1975-04-09
Abstract: 1511053 Thermochromic coatings RAYCHEM CORP 9 April 1975 [11 April 1974] 14522/75 Heading B2E [Also in Division C3] Articles of polymeric material subject to oxidative degradation are coated with compositions comprising (1) a thermochromic pigment, (2) a sulphide, nitride or optionally hydrated sulphate or oxide, or a salt, free acid or organic compound capable of reacting to form such a heating, of zinc or an element of Groups IIIB, IVB or VB, and optionally (3) a binder. The article may be a heat-shrinkable polyolefin sleeve for pipe or cable joints, to indicate when a sufficient temperature has been reached, e.g. to melt adhesive on an interior surface. Examples describe the coating of heat-shrinkable polyethylene sleeves with paints comprising (3) ethylene/ethyl acrylate copolymer, (1) hydrated ferric oxide or hydrated copper carbonate and (2) additives selected from sodium borate, ammonium polyphosphate, zinc borate, tricresyl phosphate, antimony trioxide, boron oxide, barium metaborate, γ-alumina, boric acid, bismuth oxide, sodium phosphate dodecahydrate, boron phosphate, boron nitride, aluminium sulphate octahydrate, arsenic oxide, barium oxide, stannic oxide, yellow lead monoxide, zinc oxide, zinc sulphide, sodium arsenate and calcium metaborate hydrate.
Patent GB-661072-A (GB)
Title: Improvements in electromagnetic control devices for fluid fuel burner control apparatus
Filed: 1949-05-31
Abstract: 661,072. Thermally-activated valves. ROBERTSHAW-FULTON CONTROLS, CO. May 31, 1949. No. 14598/49. Class 38 (v). [Also in Groups XI and XXIX] The fuel valve 30 of a burner is held open by the armature 16 of an electromagnet 15, the force of which is sufficient only to hold the armature in the attracted position but insufficient to move it thereto against the force of a spring 32 biasing the valve 30 to the closed position ; the opening of the valve 30 with movement of the armature 16 to the attracted position is effected by a thermally responsive device (a bellows filled with expansible fluid or a snap-over flexed bimetallic disc) which is electrically heated by a circuit including contacts 60, 62, which are opened when the valve 30 has moved to the open position. The electromagnet is energized from a thermocouple 90 heated by a pilot jet 86 for the main burner. As shown in Fig. 1, a ftexed bimetallic disc 46 fits over a reduced portion 42 of the valve stem 40 with the end of the stem engaging a spring arm 64 to close contacts 60, 62 in the circuit heater 56. With the heater circuit closed the bimetallic disc 46 snaps over to the other position so moving the valve 30 to the open position and allowing contacts 60, 62 to break the circuit of heater 56, thus enabling the disc 46 to cool and return to its normal position but leaving valve 30 in the open position. In an alternative arrangement, Fig. 5, a heater coil 100 wound on a projection 102 of ceramic or other material expands a bellows 104 to open the valve 30 by means of pin 108 and operating on spring 112. An arm 106 secured to the base of pin 108 operates contacts 60, 62. Specification 652,072, [Group XXIX], is referred to.
Patent GB-788704-A (GB)
Title: Improvements in and relating to steam superheater or steam reheater installations
IPC: F22G3/00
Filed: 1956-05-10
Abstract: 788,704. Steam superheaters. HUET, A. May 10, 1956, No. 14638/56. Class 123(3) A steam superheater or reheater comprising rows of vertically suspended U- tubes a is provided with draining means consisting of small bore tubes b each connected to respective bottom bends of the tube loops, all the tubes b of one row of U-tubes being connected to a common collector tube c provided with a drain d. The tubes b, c which are disposed outside of the heating gas flow also serve to crossbrace the U-tubes a and hold them at their correct spacing. Fig. 2 shows a superheat temperature regulating arrangement wherein a quantity of cool steam is withdrawn from the superheater inlet header e through a by-pass pipe i and injected through pipes j, k, each controlled by a valve n into either or both of the collector tubes l, m, to attemperate the steam flowing through the superheater. When required,' water may be injected into the by-pass i from a pipe p controlled by a valve o, the valves o, n, being set manually or automatically in dependence on the steam temperature in the superheater outlet header f.
Patent GB-1213705-A (GB)
Title: Improvements in railway tracks
IPC: E01B25/00
Filed: 1968-03-27
Abstract: 1,213,705. Railway junctions. COMPAGNIE GENERALE D'AUTOMATISME. 27 March, 1968 [28 March, 1967], No. 14799/68. Heading B7L. [Also in Division E1] In a fixed-points rail junction, vehicles running on a common track 100 are automatically switched on to one of three tracks 1, 20 or 30 according to the design of the wheel flanges. The tracks employ rails of two different forms, the tracks 20, 30 having plain narrow rectangular rails 40, while the tracks 1, 100 have wider rectangular rails 1a, 1b provided with rectangular grooves 3. The vehicle axles are of the three forms shown, the small double flanges of wheels 61, 62 being of a diameter to ride in the grooves 3. In operation, those vehicles on track 100 having large inner flanges 6 engaging the lower shoulders of rails 1a, 1b are guided thereby on to the similar shouldered track 1, whereas those vehicles having the wheels 61 (on right) or 62 (on left) are guided by their outer flanges 61a or 62b on to tracks 30 or 20 respectively.
Patent GB-677482-A (GB)
Title: Manufacture of sponge rubber
Filed: 1950-06-14
Abstract: Sponge rubber is made by introducing a heat-settable foamed latex of synthetic rubber into a mould incorporating spaced electrodes forming part of the moulding surface, at least one of which electrodes has a surface of zinc or cadmium and setting the foam by passing a low-frequency alternating electric current through the foam between the electrodes.  Specified latices are polymers resulting from the emulsion polymerization of butadiene-1,3, 2-methylbutadiene-1,3 (isoprene), 2-chlorobutadiene-1,3 (chloroprene), piperylene, 2,3-dimethyl butadiene-1,3, and mixtures, and copolymers of these dienes with styrene, vinyl naphthalene, acrylic acid, methyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile and methacrylamide, methyl vinyl ether, methyl vinyl ketone, and vinylidene chloride.  The latex may be compounded with the usual vulcanizing and other compounding ingredients including a heat-setting agent which may be added before foaming or to the foam before pouring into the moulds.  The heat-setting agent may be an alkali metal silicofluoride, or ammonium sulphate or other ammonium salt with zinc oxide.  The latex compound may be converted into a foam by whipping in a beater, or by a gas generating agent.
Patent GB-199388-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B60S9/10
Filed: 1923-06-06
Abstract: 199,388. Hogan, H. G. June 17, 1922, [Convention, date]. Void [Published under Sect. 91 of the Act]. Stands and supports.-A two-plunger pump secured to the running-board or other part of the vehicle supplies fluid to one or more of four lifting jacks each made in three telescoping parts and secured to the axles or springs close to the wheels. The three telescoping parts 42, 43, 44, of each jack, shown in Fig. 7, are closed by an internal spring 50 and by external springs 51. The outer part 42 is carried by the vehicle axle &c. 53 and the sections are provided with shoulders which limit their extension, when pressure fluid is supplied through the pipe 32. The pump includes two plungers 12, shown in vertical section in Fig. 3, and four distributing members, shown in a parallel vertical section in Fig. 2. The plungers are worked by hand or otherwise from a rocking lever 15. Oil is drawn from a reservoir through the passage 18 and inlet valves 13, and is discharged through outlet valves 14 into the channel 20 from which it is distributed to any or all of the jacks through pipes 32, each pipe being controlled independently by screwdown valves 28 passing through stuffing-boxes 31. The screw-down relief valve 29 connects the channel 20 to the passage 18 and oil reservoir.
Patent GB-292945-A (GB)
Title: Improvements in contact pins for electric plugs
IPC: H01R13/17
Filed: 1928-05-21
Abstract: 292,945. Eckenfelder, G. Maag-. June 27, 1927, [Convention date]. Plug couplings.-Resilient pressure between the pin and socket is obtained by fitting in a longitudinal slot in the pin a, a member b pressed outwardly by a spring f. A double ended spring is employed engaging the member b near the centre of its length so that the member can adjust itself to a conical socket. The inner edge of the member b is wedge-shaped to engage tightly between the wires of the spring, and the outer face of the member is curved to correspond with the surface of the socket, and is tapered at the entry end. More than one member b may be employed, e.g., two located in diametrically opposite slots.
Patent GB-144630-A (GB)
Title: Improvements in hoisting devices
IPC: B63B21/04
Filed: 1920-06-02
Abstract: 144,630. Nyblad, A. L. June 10, 1919, [Convention date]. Guiding load.-A flag-carrying rope 32 is connected by a gapped link 31 to a gapped link 28 which is pivotally mounted in a casing 9. The hoisting-rope 21 is connected to the casing by a swivel 26, and after passing around the sheave 8 passes downwards through the casing between anti-friction rollers 15, 16 and a guard 19.
Patent GB-1222307-A (GB)
Title: A rotary duplicator with settable type wheels
IPC: B41K3/10
Filed: 1969-03-21
Abstract: 1,222,307. Printing apparatus; selective printing. G. RITZERFELD. 21 March, 1969 [25 March, 1968], No. 15016/69. Headings B6C and B6F. Each sheet printed on by printing cylinder 1 and its duplicator master 128 also receives an impression from one or more selectively set type wheels 28, which are located either in the cylinder 1 or beside it in the duplicating machine. An electric key is provided for each position of the or each type wheel 28, and actuates an electromagnet 20 and mechanical coupling devices to control the setting of the appropriate type wheel 28. Preferably the type wheels 28 are in the cylinder 1, which carries contacts rotating with it and co-operating during setting with fixed contacts. Shaft 30 is rotated stepwise by a Maltese cross drive during setting and wheel 28 is driven with it by engagement of pawl 27 with teeth on shaft 30. Cams on shaft 30 open and close a plurality of switches in succession as the shaft rotates and while the circuit to an electromagnet 20 is broken, in consequence of coincidence of such an opening with a setting made by closing a key, a pawl 21 or 22 is held by a spring out of engagement with its co-operating pawl 27. Energization of the electromagnet 20, however, causes a pawl 21 or 22 to disengage the pawl 27 from the shaft 30, so that the associated type wheel 28 ceases to rotate, and may be locked in register in its thus selected position by a member 34, which moves into the type wheels 28 when setting is complete. Alternatively the type wheels may be mounted on a pivoted carrier outside the cylinder 1 and a sheet printed on by cylinder 1 may be printed on by the type wheels in a separate operation. In this case the type wheels may each be advanced, by a rack and pinion mechanism, linked by a pivoted pawl to a reciprocating member and disabled by insertion of a locking pawl.
Patent GB-582323-A (GB)
Title: Improvements in mechanical relays of the fluid jet type
IPC: G05B11/44
Filed: 1940-05-28
Abstract: 582,323. Fluid-pressure servomotors. TODD, K. W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 28, 1940, Nos. 15051/41 and 15052/41. Divided out of 582,322. [Class 135] The transmitting nozzle of a jet type controller for a fluid-pressure servomotor is formed with a convergent-divergent passage. The control may be effected by varying the degree of impingement of the jet on a receiver nozzle by the deflection of one jet relatively to the other whether retaining a coplanar relationship or not, by movement apart of the two orifices, by an intercepting vane or by a transverse jet as described in Specification 581,401. When an intercepting vane is employed, the axes of the transmitting and receiving nozzles are arranged at an angle of not less than 5 degrees. One or more wires or a wire grid may be arranged across the entrance to the receiving nozzle. Specification 582,322'also is referred to.
Patent GB-331986-A (GB)
Title: Improvements in or relating to bedsteads and the like
IPC: A47C17/86
Filed: 1929-05-14
Abstract: 331,986. Faulkner, M. L. V. May 14, 1929. Bedsteads combined with drawers or cupboards.-A device for attachment to a bedstead or the like comprising a casing 1 sliding beneath the foot of a bedstead 2 and held there by clips or bolts 3. The casing has drawer and cupboard accommodation 6, 7, and a collapsable table or flap 4 may slide in a slot 5 in the casing or be hinged to it, collapsable struts, not shown, being provided to support the table in the raised position. Hinged legs. or feet 9 fold flush into a recess 12 for transport of the casing.
Patent GB-545151-A (GB)
Title: Improvements in or relating to fire hose nozzles
IPC: B05B1/16
Filed: 1940-10-10
Abstract: 545,151. Nozzles. BOOTHMAN, P. R. Oct. 10, 1940, No. 15100. [Class 69 (iii)] A fire hose nozzle incorporating a jet and a spray which can be used separately or together comprises a body 1 having non co-axial passages 3, 4 each of which is controlled by a separate valve 5, 6 and leading to a spray outlet 12 and jet 11 respectively. The spray outlet may be flared and bent upwardly terminating in a slot shaped orifice.
Patent GB-436017-A (GB)
Title: Improvements in or relating to tools for cutting glass
IPC: C03B33/10
Filed: 1934-05-18
Abstract: A method of making a tool for cutting glass or the like consists in sintering at a high temperature a mixture of finely-divided alumina and a material which is, or which becomes after sintering, softer and more ductile than crystalline alumina. For example, a mixture of finely-divided alumina with 10 per cent of iron oxide (rouge) is pressed into a coherent bar of square section, and the bar is then sintered at about 1700 DEG  C. in an electric furnace having molybdenum resistance elements and filled with hydrogen.  During sintering, the iron oxide is reduced to iron, and the edges of the bar so obtained can be used for cutting glass.
Patent GB-294342-A (GB)
Title: Improvements in or relating to wireless condensers and the like
IPC: H03J1/14
Filed: 1927-06-07
Abstract: 294,342. Lafont, F. June 7, 1927. Wireless tuning- apparatus, adjustment devices for.- The fine adjustment knob 17 operates a toothed spindle 15 engaging pinions 6 arranged diametrally in a rotatable member 9 coupled to the coarse adjustment knob 2, and the spindles of the pinions operatively engage the internal periphery of a ring 14 provided with a pin 25<1> entering a hole in the ebonite base 1 and thus preventing movement of the ring. The member 9 is coupled to the knob 2 by means of a bevelled washer 33 having pins 32 entering holes in the member 9 the washer engaging frictionally a cup member 33<1> secured to the knob by a screw 35. The washer is forced into engagement with the cup member by a spring 31 in the form of a maltese cross fixed to the member 9 and abutting a cup 20 housed in a recess 5 on the knob 2. The spindle 15 is pressed downwards by a second spring 19. The pin 25<1> passes through a slot in a web 27 in the knob 2. The toothed gearing may be replaced by friction gearing. Specification 278,661 is referred to.
Patent GB-590065-A (GB)
Title: Position-indicating system
IPC: G08C19/12
Filed: 1944-08-09
Abstract: 590,065. Frequency modulation. HAZELTINE CORPORATION. Aug. 9, 1944, No. 15191. Convention date. Sept. 20, 1943. [Class 40 (v)] [Also in Group XXXVIII] A remote indicating system (see Group XXXVIII) employs a valve oscillator 21 of which the frequency is varied within a limited range in accordance with the inductive coupling between two elements 15, 16 disposed in a feed-back path. The oscillations, which are maintained of constant amplitude by a backcoupling through a delay-biassed rectifier 25, are fed to the element 15 through an adjustable phaseshifting network 30, a repeater 38 and a tuned transformer 40, 41, and the element 16 is coupled to the input of the oscillator through inductive loops 43, 44 and a tuned transformer 45, 46 to supply a voltage which is substantially 90 degrees out of phase with respect to the voltage from the inductance 24, the amplitude and polarity being dependent on the coupling between the elements 15, 16.
Patent GB-671621-A (GB)
Title: Process for the preparation of catalysts
Inventor: WESTRIK ROELOF
IPC: B01J37/34
Filed: 1950-06-17
Abstract: A catalyst is prepared by moulding into, for example, blocks, a mixture of the ingredients in finely-divided state, sintering the moulded mixture to lower its electrical resistance, melting the sintered mixture in an electric furnace and finally crushing or granulating the solidified melt.  The sintered material prior to melting may be crushed or granulated, and sintering may be effected in a current of inert gas, e.g. nitrogen containing a small amount of oxygen or carbon dioxide.  For the production of an ammonia-synthesis catalyst the initial ingredients are iron oxide, aluminium oxide and potassium carbonate.
Patent GB-355229-A (GB)
IPC: D04B9/26
Filed: 1930-05-17
Abstract: 355,229. Knitting. SCOTT & WILLIAMS, Inc., 366, Broadway, New York, U.S.A.-(Assignees of Getaz, J. L.; 317, Cunningham Street, Maryville, Tennessee, U.S.A.) May 17, 1930, No. 15256. Convention date, May 17, 1929. [Class 74 (ii).] Striping yarn fingers 24 are mounted so as to rotate within the needle cylinder 260 and are actuated so that the yarn-feeding ends 28 move in a path intersecting the needle circle. On the dial bracket 15 is eccentrically mounted a vertical tube 22 carrying a bobbin stand 21. The lower end projects below the usual shear plate 26 and carries a striping yarn finger bracket 23 and associated mechanism. A non-revoluble cam 25 for working the pivoted striping yarn fingers 24 is riveted to the underside of the plate 26. As the tube 22 revolves, each finger is oscillated about its pivot 30 and also is moved eccentrically to the needle circle. The yarn carried thereby is thus wrapped around a group of needles. By properly shaping the cam 25 the number of needles which can be wrapped by one striping yarn may be varied. The yarns are fed down the tube 22 and through eyes in the finger ends 28. Needles on which it is desired to wrap striping yarns may be selected by a vertical series of selecting cams 36 operating on saw teeth 37 formed on the bottom of the needle below the regular operating butt 31. The cams 36 may be put in by levers connected to the thrust rods. When the wrap around is in action the cam 360 is lowered to the position shown in dotted lines. A cam 33 vertically movable under control of a thrust rod is provided to raise the needles so they will pass over the stitch cam 361 when the machine is oscillating in the reverse direction. The tube 22 may be concentric with the needle cylinder. In this case the pivot pins of the yarn fingers are mounted in radial slots in the bracket 23 and run in an eccentric groove in a lower face of the cam 25. The yarn fingers may be shogged relatively to the needle cylinder by differential gear. The striping yarn bobbins may be mounted below the plate 26. Specifications 281,613 and 282,640, [both in Class 74 (ii), Knitting &c.], are referred to.
Patent GB-569566-A (GB)
Title: Improved lubricating oils
Filed: 1943-09-17
Abstract: Sludge-deposition in mineral lubricating oils is inhibited by incorporating therein a small proportion of an acylated polyamine containing at least 14 carbon atoms and of general formula A-NH-X-NH-B, where A represents a naphthenic acid acyl group, B represents a naphthenic acid acyl group or hydrogen, X represents an aliphatic chain containing at least 2 carbon atoms and, if desired, internal linkages such as O-, -S-, -S-S, -SO-, -SO2-, -NH- and -NR-, wherein R represents an aliphatic group or a naphthenic acid acyl group, the two nitrogens in the general formula being bonded to separate carbon atoms in X. Suitable acylated polyamines are the naphthenic acid amides of ethylene diamine, 1 : 2-propylene diamine, 2 : 3-butylene diamine, hexamethylene diamine, diethylene triamine, triethylene tetramine, di-N-(g -aminopropyl)-methylamine, di-(b -aminoethyl)-sulphide, 2 : 3-hexylene diamine, b  : b 1 - di - (aminoethyl) - sulphoxide, b  : b 1-di-(amino-isopropyl) sulphone, b : b 1 - di - (amino - ethyl) ether, b -aminoethyl - aminoethyl-b 1-aminoethyl ether, and b  : b 1-di-(amino-isopropyl) disulphide. Other substances such as pour point depressants, corrosion inhibitors, oiliness agents and extreme pressure agents may be incorporated in the mineral lubricating oils.  The acylated polyamines may be prepared by the action of the naphthenic acid, its halide, nitrile or ester on the polyamine.