baber/WOPTO huggingface dataset:
Patent GB-397246-A (GB)
Title: Improvements in perpetual calendars
IPC: G09D3/08
Filed: 1932-04-19
Abstract: 397,246. Calendars. LOCKETT, W. J., 75, Great Eastern Street, London. April 19, 1932, No. 11190. [Class 106 (iv).] A perpetual calendar comprises a revoluble disc 3 having a consecutive arrangement of day numerals and rotatably mounted on a suitable base 9, a transparent member 1 mounted in an arcuate opening 2 in the base, fixed cancellation marking 7 on the transparent member covering certain of the exhibited numerals, and a fixed indicator 6 disposed so as to register with one particular numeral. All the numerals except the outer circumferential row 5 may be printed with a permanent cancellation stroke. The names of the days of the week and the names of the month may be shown by other discs 8, 11 through openings 10, 12 respectively. Specifications 309,804, [Class 106 (iv), Indicating &c.], 351,362 are referred to.
Patent GB-1048854-A (GB)
Title: Circuit arrangement with negative feedback
IPC: H03F1/36
Filed: 1965-03-17
Abstract: 1,048,854. Amplifying circuits. TESLA, NARODNI PODNIK. March 17, 1965 [April 17, 1964], No. 11286/65. Heading H3W. In a negative feedback amplifier the feedback circuit comprises a number of parallel connected paths, each of which includes a bandpass filter with a different frequency range and also a phase corrector, the frequency ranges being distributed successively over the frequency range of the amplifier. Each phase corrector is such that the phase shift of the feedback in the corresponding path is zero at the central frequency of the path. In an embodiment low frequencies are fed back over a lowpass filter 15; further paths comprise band-pass filters 16, 17, 18 respectively, which are connected to tapping points on a delay line 14 which provides the phase-correcting circuits.
Patent GB-1027578-A (GB)
Title: Phenyl-cyclohexyl-alkylamines
IPC: C07C61/08
Filed: 1965-03-17
Abstract: The invention comprises compounds of the formula <FORM:1027578/C2/1> where R1 represents a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms, R1 represents a hydrogen or halogen atom or an alkyl group of 1 to 4 carbon atoms, R11 represents a halogen atom or an alkyl group of 1 to 4 carbon atoms and n represents 1 or 2; and acid addition salts thereof.  The compounds are prepared by the process described in the parent Specification.
Patent GB-253668-A (GB)
Title: Improved method of and means for mounting filaments in thermionic valves and the like
IPC: H01J1/18
Filed: 1925-05-01
Abstract: 253,668. Bullimore, W. R. May 1, 1025. Vacuum tubes. - The filament of a thermionic valve having arched electrodes is provided with three supports sealed into the pinch, or re-entrant tube of the glass bulb, one of the supports being resilient. The valve comprises an arched anode h having flattened sides, a grid k, and an arched or V-shaped fila. ment e supported at its ends by conductors b, o which are sealed into the pinch a, as usual. The central portion of the filament is supported by a member d, sealed into the pinch a, over which a sleeve f is passed. A cuiled spnng g surrounds the member d and presses the sleeve f upwards, thus opposing any tendency of the filament to sag or slacken during use. The upper end of the sleeve f may be solid. or it may be split, notched, or otherwise formed to provide a seating for the filament and to prevent it from leaving the support. The coiled spring g mav be replaced by a leaf spring one end of which embraces the support d and presses the sleeve g upwards. Specifications 233,045 and 251,073 are referred to.
Patent GB-113744-A (GB)
IPC: H01H1/44
Abstract: 113,744. Igranic Electric Co., (Cutler- Hammer Manufacturing Co.). Aug. 22, 1917. Contacts for electrical apparatus comprise shoes 1 which are held in position within holders 2, 3 by the pressure of springs 4. The spring tends to keep projections 9 upon the part 2 in engagement with projections 8 upon the shoe and also to keep the part 3 raised to such an extent that the extensions 10 cover the engaged projections and prevent them from becoming disengaged laterally. To disconnct the parts, the shoe and holder are pressed together till the extensions 10 clear the projections; the part 2 can then be removed by a lateral movement, as shown in Fig. 3. By making the distance between the legs of the part 3 a little greater than the width of the contact, a slight rocking of the contact may be provided for.
Patent GB-923823-A (GB)
Title: Chance apparatus for forecasting game results or determining scores
IPC: A63F5/04
Filed: 1960-03-31
Abstract: 923,823. Chance apparatus. H. E. LEBAIGUE. March 27, 1961 [March 31, 1960], No. 11398/60. Class 132 (2). Chance apparatus for forecasting game results has a base 1 and a spinnable disc 2 with stub 4 secured thereto housed between the base 1 and a cover 3, permanent magnets 8 being arranged on the upper surface of base 1 to attract non-magnetic ferrous elements 9, secured to the disc 2, to arrest and locate the disc with a symbol opposite opening 10 in the cover when momentum expires.
Patent GB-142658-A (GB)
Title: Improvements in and relating to temporary axles for motor road vehicles
IPC: B60B35/00
Filed: 1919-05-07
Abstract: 142,658. Owen, G. S. May 7, 1919. Axle structures.-A temporary axle structure of the kind described in Specification 114,087 comprises a flange a fixed to the axle.flange b by bolts . d or hooked bolts d* and provided with a boss a<2> in which the temporary axle-end e is carried by means of 'bearings a<3>.
Patent GB-639535-A (GB)
Title: Improvements in and relating to windscreen wipers
Inventor: LOWDEN JOHN HUNTER
IPC: B60S1/04
Filed: 1946-04-13
Abstract: 639,535. Windscreen wipers. MILES AIRCRAFT, Ltd. April 13, 1946, No. 11403. [Class 138 (i)] A windscreen wiper for double curvature screens and more particularly for use on aircraft comprises a wiper blade 1 having a wiping edge 1a of concave form to accommodate the convex curvature of the screen about an axis transverse to the length of the blade and a reciprocating mounting moving the blade over the screen in a direction transverse to the length of the blade and which incorporates means permitting of lateral displacement of the wiping edge 1a to allow it to follow convex curvature of the screen about an axis transverse to the first -axis and transverse to the direction of reciprocation to allow of the lateral displacement. The blade 1, as shown, is pivotally connected to the top of a pillar 2 and biassed toward the screen by a spring device 5. Alternatively the pillar 2 may reciprocate in a spring biassed pivoted guide: The pillar 2 may be reciprocated vertically as shown, or horizontally so that the blade moves to and fro across the screen, the reciprocation being effected either mechanically or by fluid pressure supplied through a pipe 10. A pocket 6 is provided in the fuselage 7 into which the blade may be parked when not in use. Deicing or cleaning fluid may be supplied to the blade through its interior by a pipe 8. Specification 427,383 is referred to.
Patent GB-1341884-A (GB)
Title: Herbicidal 1,2,4-thiadiazolyl derivatives
IPC: C07D285/08
Filed: 1971-04-26
Abstract: 1341884 1,2,4-Thiadiazolyl derivatives and their preparation ESSO RESEARCH & ENG CO 26 April 1971 [27 April 1970 9 July 1970] 11411/71 Heading C2C Compounds of the formula wherein R 1  represents a hydrogen or chlorine atom, or a C 1-8  alkyl, C 1-4  alkoxy, trichloromethyl, C 1-4  alkylmercapto, C 3-8  cycloalkyl, C 7-10  aralkyl, a di-(C 1-4  alkyl) amino group, or a C 6-10  aryl group optionally substituted by chlorine, bromine, nitro, C 1-4  alkyl, C 3-8  alkenyl, or C 3-8  alkynyl, R 2  represents a hydrogen atom or a C 1-8  alkyl, C 1-4  alkoxy, C 3-8  cyoloalkyl, C 7-10  aralkyl, di-(C 1-4  alkyl) amino, or a C 6-10  aryl group optionally substituted by chlorine, bromine, nitro, C 1-4  alkyl, C 3-8  alkenyl or C 3-8  alkynyl, and Q is C = O or S, and compounds of the formula wherein each of R 3 , R 4  and R 5 , which may be the same or different, represents a hydrogen atom, a C 1-8  alkyl, C 2-6  alkoxyalkyl, C 3-8  cycloalkyl, C 7-10  aralkyl, di-(C 1-4  alkyl) amino or C 6-10  aryl group optionally substituted by chlorine, bromine, nitro, C 1-4  alkyl, C 3-8  alkenyl or C 3-8  alkynyl, may be prepared by reacting a thiadiazolyl urea (a) with a halocarboxylsulphenyl halide or with an oxalyl halide to give compounds of Formula I, or (b) with formaldehyde and a primary amine to give compounds of Formula II; the reactions are suitably effected in an organic solvent at 25- 150 C. The products possess herbicidal properties and may be applied in the form of conventional formulations.
Patent GB-686893-A (GB)
Title: Plating thickness regulator
IPC: C25D21/12
Filed: 1951-05-16
Abstract: 686,893. Electric control systems. UNITED STATES STEEL CO. May 16, 1951 [July 10, 1950]. No. 11414/51. Class 40 (i). The arrangement described in Specification 649,490 for measuring the thickness of metal electrolytically deposited on a moving strip is modified by the provision of means for regulating the thickness. As described in Specification 649,490 separate anodes 8, 10 on opposite sides of the moving strip S are fed from separate generators 14, 16. A voltage proportional to total plating current. is fed over lines 40, 42 to produce a proportional potential drop across series connected resistors 46, 48. A tachogenerator 54 driven by the strip feed rollers 12 produces a potential proportional to strip' speed across a potentiometer 60, the moving arm 68 of which taps. off a fraction of this voltage which is automatically balanced against the potential drop across the resistor 46 by means of a contactmaking galvanometer 44 which controls a reversible motor 70 to adjust the potentiometer arm 68 and at the same time drive a pointer 82 indicating plating thickness. To regulate this thickness a further potentiometer arm 114 is adjusted according to the thickness desired whereby the current in a control field winding 134 connected across the arms 102, 114 of parallel connected potentiometers 104, 112 is varied. The winding 134 varies the excitation of a motor driven exciter 128 having a self-exciting field winding 130. The exciter in its turn varies the excitation of the main generators 14, 16 to vary the plating current. The motor 70 is thereby operated to indicate the new thickness and at the same time adjusts the potentiometer arm 102 to adjust the current in the control winding 134 until balance is achieved. An anti-hunt transformer 144 energizes a stabilizing field 150 of the exciter in the conventional manner. In a further embodiment, Fig. 2 (not shown) an electronic voltage regulator connected across the potentiometer arms 102, 114 controls the exciter field magnetization.
Patent GB-149073-A (GB)
Title: Process of manufacturing pencil leads and the like
IPC: B43K19/16
Filed: 1919-05-07
Abstract: 149,073. Marks, E. C. R., (American Lead Pencil Co.). May 7, 1919. Pencils.-Pencil leads and similar rods made from plastic material are dried after formation by subjecting the plastic solid or tubular rods to the action of heat or other drying-agent, and at the same time imparting to the rods an axial rotation by the application of rolling pressure to preserve their straightness. The rotation may be continuous or intermittent, or may be a rocking movement. In the arrangement shown, three conveyer bands 16, 17, 18, preferably of canvas or other absorbent material, run over heated tables 10. 11, 12. A preliminary drying under close confinement is given on the table 10 under a band 31, and subsequently on the tables 11, 12 the rods are exposed to the open air. The bands 16, 31 may be run at different speeds to give continuous slow rotation to the rods. On the tables 11, 12 intermittent rotation is imparted to the rods by means of friction bands 36, which are fixed to their forward ends and lie loosely on the conveyer bands. The bands 36 are preferably loaded at intervals by means of slats attached to their upper surfaces. The tables are disposed at different levels so that the rods fall a short distance from one table to the next, to correct small divergencies from parallelism. The dried rods are discharged upon a delivery band 39, on which the ends of the rods are trimmed, for example by means including knife-edge disks 43 and alining-disks 49 as described in Specification 149,072.
Patent GB-306325-A (GB)
Title: Improved means for locking bolts and nuts
IPC: F16B39/10
Filed: 1928-04-18
Abstract: 306,325. Hildyard, R. J. L. April 18, 1928. Locking nuts.- For locking nuts and bolts a flat washer 2 is provided with lateral and integral lugs '6 adapted to be turned up and engage the sides of the nut 3 or bolt head and one or more projections 5 on the under side of the washer are adapted to penetrate or engage the work 4. When the work is of metal only one projection 5 is provided and a small recess is formed in the surface of the work by a centre punch or a small hole is drilled therein.
Patent GB-114782-A (GB)
IPC: E05F3/02
Abstract: 114,782. Spindler, W. H. G. Nov. 17, 1917. Checks.-Relates to checking or cushioning devices for doors, casement windows &c. of the kind which comprises a cylindrical casing having a base for attachment to the door &c. and containing a spring urged piston and rod fitted at its outer end with a cushion nipple. According to the invention, means are provided for adjusting the initial resistance or set of the spring. The described means consist of a screw c which screws into a cap-piece f secured to the cylinder and carries a plate d bearing against the end of the spring c. A boss i at the other end of the cylinder forms a stop for the piston, and rubber washers m prevent noise. The cushion nipple l may be shouldered, as shown at l<1>, and held in position by a screw ring k<2>, or may be forced into an undercut recess. Apertures n are made in the wall of the cylinder for escape or entry of air.
Patent GB-374575-A (GB)
Title: Improvements in or relating to furnaces for pulverulent and small fuel
IPC: F23C99/00
Filed: 1931-04-17
Abstract: 374,575. Pulverulent-fuel furnaces. HOLD, C.,'9, Stocksiepen, Bredeney, Essen, Germany. April 17, 1931, No. 11508. [Class 51 (i). A pulverulent-fuel furnace, of the kind in which the fuel is burnt in suspension in a combustion chamber b to which air is admitted through a number of passages in the floor c, is adapted for burning unground fuel, e.g. the residues from washing or. dry-cleaning plants, by maintaining the combustion zone in sufficiently close proximity to the floor c that the latter is kept at such a temperature that the heavier fuel particles falling thereon are completely burnt. The floor may be either stepped or plane as shown in Figs. 3 and 5 respectively and is provided with vertical and horizontal air admission passages f, g, the air supplied through the letter serving to keep the heavier fuel particles continuously in motion and free them from ash. The air, which may be cold or preheated, is supplied under pressure through pipes d, and at the lower end of the floor c there are provided ash collecting boxes n covered by grates o. The steps of the floor c shown in Fig. 3 may be filled in, to provide a plane upper surface, by wedge-shaped blocks also having vertical and horizontal air passages, or a plane upper surface may be obtained by making the floor blocks k themselves wedgeshaped.
Patent GB-1500754-A (GB)
Title: Aircraft undercarriages
IPC: B64C25/62
Filed: 1975-03-19
Abstract: 1500754 Aircraft undercarriages AUTOMOTIVE PRODUCTS Ltd 1 March 1976 [19 March 1975] 11520/75 Heading B7G An aircraft undercarriage has a shockabsorbing strut which has different damping characteristics for landing and taxiing. The strut includes an outer cylinder 118, Fig. 5, and an inner telescopically-received cylinder 119. The inner cylinder houses a floating piston 123 which defines a gas-spring chamber 124 and the outer cylinder houses a floating piston 134 defining a gas-spring chamber 135. Chambers 125, 127 and 136 contain hydraulic fluid, and a landing/recoil orifice 128 is provided in the end wall of the inner cylinder to provide restricted communication between the chambers 125 and 127. Chambers 127 and 136 communicate through passages 137 and 138 and a valve block 139, Fig. 6. During landing fluid from the chamber 136 flows through a flow path comprising the passage 137, a second landing/ recoil orifice 146, a passage 147, ports 148 and 149 in a selector spool valve 141, and the passage 138. During taxiing a solenoid valve 142 is energized and allows hydraulic fluid from a pressurized source to be applied to a chamber 155 of the spool valve 141 via passage 153, 154 which causes the spool to be displaced. The flowpath through the valve block 139 then comprises passage 137, taxiing orifice 157, passage 158 and port 149. A relief valve 159 is provided in parallel with the taxiing orifice to provide for high wheel to fuselage velocities over rough ground. The solenoid valve 142 is energized by a microswitch 143 via a time delay circuit 144. In an alternative embodiment, Figs. 1 and 2 (not shown), the undercarriage is also provided with a side control valve (44) actuated by a side control mechanism (82 to 101), which is sensitive to relative movement of the aircraft structure and ground-engaging wheel, to selectively connect a source of hydraulic fluid or a drain to the strut. In a further alternative embodiment, Figs. 3 and 4 (not shown), the side control valve is an electro-hydraulic servo valve (103) and the side control mechanism comprises a computer (104) which receives signals of the relative movement between the aircraft structure and wheel, acceleration of the aircraft, and a reference.
Patent GB-708931-A (GB)
Title: Improvements in and relating to electric switches, responsive to the stoppage of driven machines
Inventor: NICOL JAMES CAMPBELL BARR
IPC: H01H29/20
Filed: 1951-05-17
Abstract: 708,931. Actuation of switches; control of motors. IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 16, 1952 [May 17, 1951], No. 11529/51. Classes 38(3) and 38(5) In an arrangement particularly adapted for controlling two conveyers wherein the second conveyer is fed with material from the first and must be in operation before and during the operation of the first and wherein stoppage of the second conveyer automatically brings about a stoppage of the first, two switches 16 each having a quick make and slow break are arranged in series and are operated to the " on " position by periodic mechanical or electrical impulses, produced by the operation of the second conveyer and arriving at intervals shorter than the delay times of the switches so that the switches remain permanently closed so long as the conveyer is in operation. Should the second conveyer stop at least one switch 16 will open, Fig. 2, and break the circuit to the solenoid 15 controlling a contactor, whereupon the motor 9 driving the first conveyer is disconnected from the line 10. The switches 16 may be mercury switches 3, Fig. 1, operated by cams 6 on a shaft 5 driven by the second conveyer. Alternatively the switches may be electromagnetic relays, operated by electrical impulses and having a delayed break produced by clockwork or the charging of a condenser.
Patent GB-698730-A (GB)
Title: Improvements in or relating to disc brake arrangements for wheels
IPC: F16D65/12
Filed: 1952-05-07
Abstract: 698,730. Disc brakes. HILGER, O., and BUSCH, W., [trading as BERGISCHE STAHLINDUSTRIE]. May 7, 1952 [June 28, 1951], No. 11529/52. Class 103 (i). In a wheel, primarily intended to run on rails, of the type comprising a rim h<SP>1</SP> carried resiliently on the hub a by means of a block of resilient material, such as rubber, f, interposed between a flange c and a rim disc g, the flange c or, as shown, a separate disc j provided adjacent thereto, is arranged to serve as a brake disc. Preferably, as shown, there are two rubber blocks f, held against a central felly h by means of a pair of carrying flanges c and d. As shown, the brake discs and k are detachably connected to the bolt m which holds the two hub parts a and b together, but they may be integral therewith.
Patent GB-895874-A (GB)
Title: Improvements in or relating to a rotary duplicating machine
IPC: G03G15/30
Filed: 1960-04-01
Abstract: 895,874. Printing processes. RITZERFELD, W., and RITZERFELD, G. April 1, 1960 [April 3, 1959], No. 11559/60. Class 100(2) A rotary duplicating machine for printing a selected line or section of an original text on to a copy sheet comprises rotatable means for carrying a printing master sheet, for example a selenium sheet, which is electrostatically chargeable, means for selectively changing the master sheet only at one or more areas, each corresponding to a line or section to be printed, means for projecting the text on to the master sheet, means for developing said area or areas, and means for selecting said area or areas of the master sheet. A motor 1, Fig. 1, drives synchronously a cylinder 8, Figs. 1 and 2, carrying the original text 13, a drum 11 carrying the master sheet 14, and a contact arm 16. When the machine is started for one revolution, lamps 17 are illuminated and the master sheet is exposed to the text by reflecting means, just after being carried past a charging device 23, and is then carried past a developer 25, between the drum and a counter-pressure roller 34, and past a discharging device 42. The charging device 23 is operative only when the arm 16 engages a contact K in series with a key Z which has been depressed to select a line of the original test for printing, and therefore only the corresponding areas of the master sheet are charged, selectively discharged according to the text image by the exposure, developed, and printed on to the copy sheet. The roller 34 is in contact with the cylinder only when a selected part of the master sheet is passing the printing line, when the developed image is transferred and fixed by heated rollers 38, 39, the printed sheet passing into a container 40. The roller 39 is cleaned.by an oil-impregnated felt 41. In order to print lines in progression, a second contact arm 56, Fig. 6, is provided to engage contacts 58, the arm 56 being stopped at each revolution by a clockwork mechanism comprising a ratchet 53, pawls 48, 49, and a spiral spring, stepping being controlled by one or more manually suitable rollers 52 one roller per line space to be progressed. The spring is retensioned by a hand knob. Cylinder trips. Each charged area of the master sheets includes a part at one end which is not illuminated or developed and remains charged as it passes a sensing head 28, which causes energizations of an electromagnet 29 thereby swinging a lever 35 about its pivot 36 to move the roller 34 against the drum.
Patent GB-180309-A (GB)
Title: Improvements in and relating to airplane radiators
IPC: B64D33/10
Filed: 1922-04-25
Abstract: 180,309. Curtiss Aeroplane & Motor Corporation, (Assignees of Thurston, A. L.). May 16, 1921, [Convention date]. Radiators, aircraft, are made in two units fitted respectively on opposite sides of the fuselage and attached to the wing beams so as to form a portion of the lower wing covering. Each unit 10 of the radiator, Fig. 1, comprises forward and rear headers 18, 19, Fig. 3, attached respectively to the leading beam 15 and trailing beam 16 of the lower wing and communicating with one another through a number of water cells 20. The water cells comprise flat plates secured to the wing surface, over which corrugated plates are fitted, the spaces between the plates forming the waterways. Corrugated plates may also be fitted on the inner faces of the flat plates, to provide additional water passages, in which case, also, holes 27 in the leading edges of the wings may be provided to assist in the cooling.