baber/WOPTO huggingface dataset:
Patent GB-576483-A (GB)
Title: Improvements in or relating to x-ray radiography
IPC: G03B42/02
Filed: 1943-12-03
Abstract: 576,483. Radiographic cassettes. POWERS, F. T. Dec. 3, 1943, No. 20225. Convention date, Feb. 8, 1943. [Class 98 (i)] An X-ray cassette has cutting or perforating means which are operable only when the film is clamped. The cassette contains film feeding and measuring means as described in Specification 576,846 with modified constructions of the clamping and severing units. The clamping unit comprises a press board 54 faced with a rubber sponge mat 59, and a thin sheet of aluminium 62 separates the latter from the intensifying screen 61 to which it is secured at the corners to avoid chemical staining of the screen. The board is mounted on rollers which run on rails 55 having flanges 57 and 58 which provide a stop and prevent lateral movement respectively. A shaft 63 carries a handle 65 and four cam members 66 by which the clamping board 54 is engaged and moved to the clamping position. The shaft 63 is also linked through levers 79, 76 and a pin-and-slot connection 77, 78 to a pair of pinion gears 72 which drive the rack carrying the severing or perforating knife 18 such that the handle 65 in its extreme position severs or perforates the film. In the intermediate position of the handle 65, the film is clamped without actuation of the knife 18.
Patent GB-848329-A (GB)
Title: Television transmitting systems
Inventor: WETHEY EUGENE PETER
IPC: H04N7/00
Filed: 1956-06-29
Abstract: 848,329. Radio signalling. KOLSTERBRANDES Ltd. June 28, 1957 [June 29, 1956], No. 20278/56. Class 40(5). In a television system either an amplitude modulated vision carrier wave, or an interfering wave, is frequency modulated by a sinusoidal wave to reduce the apparent shady interference pattern at the receiver, the modulation frequency being chosen to avoid coincidence with the line harmonic frequency, and the modulation index being greater than 10, and the frequency deviation being at least 1 kc./s.
Patent GB-247096-A (GB)
Title: Improvements in appliances for peeling apples, potatoes and the like
IPC: A47J17/16
Filed: 1925-08-12
Abstract: 247,096. Edlich, C. Aug. 12, 1925. Peeling apples, potatoes, &c. - A device, for peeling apples, potatoes, and the like, of the kind in which a spindle having a holder for the article to be peeled is swung about an axis perpendicular to itself and is, at the same time, rotated on its own axis by means of a pinion rolling on a rack, is characterized by the rack being formed upon the supporting-frame. As shown in Figs. 2 and 3, the shaft 10 carries a pronged holder 13 for the apple &c., and an arcuate rack 1 on the frame A is engaged by a pinion 7 which rotates the shaft 10 on its own axis through gearing 8, 9. The shaft 10 is mounted in a frame B which is oscillated about the centre of the curved rack 1 by a handle 2. The apple &c. which is thus rotated about two axes at right angles, is engaged by a knife mounted in a holder 4 on an arm 3 which is urged towards the apple by a spring 5. The arm 3 works in a curved slot 6 having an enlargement with a notch into which the arm 3 is pressed by a finger 11 on the frame B when the handle 2 is moved into the position C, Fig. 3. The knife is then withdrawn from the apple &c. and the arm 3 is released from the notch by the frame B when the handle 2 is moved into the position D.
Patent GB-347543-A (GB)
Title: Process for the manufacture of mixed fatty aromatic ketones
IPC: C07C45/48
Filed: 1930-07-04
Abstract: Vapours of aromatic dicarboxylic acids, or their anhydrides, are passed, together with the vapours of aliphatic carboxylic acids, over suitable catalysts, e.g. the oxides or carbonates of the alkaline earth, earth, and heavy metals, in particular thoria, manganous oxide, ferrous oxide, alumina and calcium carbonate. One carboxylic group of the aromatic dicarboxylic acid is replaced by hydrogen, and the other reacts with the aliphatic acid with ketone formation.  In the example, 1 molecular proportion of phthalic anhydride is mixed with 3 molecular proportions of acetic acid, and the vapours are passed over manganous oxide in a tube heated to 350-400 DEG  C. Carbon dioxide is evolved and in the receiver is collected a mixture of acetone and acetophenone.  The Specification as open to inspection under Sect. 91 (3) (a) states that by employing a dicarboxylic acid as aliphatic component, a fatty-aromatic keto-acid is obtained.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1419217-A (GB)
Title: Pulsing bell
IPC: G10K1/065
Filed: 1974-05-10
Abstract: 1419217 Bells GENERAL SIGNAL CORP 10 May 1974 [21 May 1973] 20792/74 Heading G5J An A.C. operated bell is rung regularly and intermittently by the action of a multivibrator 26 the periodic output from which operates a controlled rectifier circuit 24 in series with the bell coil 10A. The rectifier circuit 24 uses a silicon controlled rectifier as its control. Exemparly components are given. The circuitry is mounted on a printed circuit board and housed within the bell (Fig. 2, not shown) and the coil 10A may be connected to the circuitry by a switch. For the exemplary supply of 120 volts at 60 Hz and using the components listed, the output 28 will have a period of 1 sec. and a duty cycle of ¢ sec.
Patent GB-571779-A (GB)
Title: Apparatus for playing a game
IPC: A63F7/30
Filed: 1943-12-13
Abstract: 571,779. Indoor games. WHITEHOUSE, B: Dec. 13, 1943, No. 20812. [Class 132 (ii)] In an apparatus for playing a game of the kind in which a row of playing pieces 15 of open-ended prism-like form, each having a number of indicating faces with identification marks, are freely suspended on a rod 18 so that they can be swung over by balls 19 projected by the players, the supporting structure comprises a rod 18 extending between two end members or posts 10 which are adapted to stand on the floor or table and are unconnected at their lower ends. As shown, the posts 10 have folding arms 13 at their lower ends held in horizontal position at opposite sides of the frame by the stops 14 and are connected at their upper ends by the bar 11 to which is secured the spacing means 16 with V-shaped loops 17 depending between the playing pieces 15.
Patent GB-1427018-A (GB)
Title: Insecticidal pyrrolidines
IPC: C07D207/08
Filed: 1973-05-02
Abstract: 1427018 2-Nitromethylenepyrrolidine derivatives SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ BV 2 May 1973 [4 May 1972 (2) 9 Feb 1973 (2)] 20820/73 Heading C2C [Also in Division A5] Example II.-Bromine is added to 2-(nitromethylene)piperidine to obtain 2-(bromonitromethylene)pyrrolidine. Example III.-The ethyl imidate of 3- methyl-2-pyrrolidone in nitromethane is refluxed and then excess nitromethane and ethanol is evaporate to give 3-methyl-2-(nitromethylene)pyrrolidine. Examples VI, VII, VIII and IX.-The 1 - alkyl - 2 - (nitromethylene)pyrrolidines wherein alkyl is ethyl, methyl, n-propyl and 2-propynyl are prepared from the corresponding 1 - alkyl - 2 - pyrrolidones by. heating with dimethyl sulphate, sodium methoxide and nitromethane. Example X.-1 - methyl - 2 - (nitromethylene)pyrrolidine is reacted with N-bromosuccinimide to give 3-bromo-1-methyl-2-(nitromethylene)pyrrolidine. Example XI.-1,3 - Dimethyl - 2 - pyrrolidine is reacted with a dialkyl sulphate or a trialkyloxonium fluoroborate, an alkali metal alkoxide and nitromethane to give 1,3-dimethyl-2-(nitromethylene)pyrrolidine. Example XII.-2 - (Nitromethylene)pyrrolidine is reacted with acetyl chloride to give 1-acetyl-2-(nitromethylene)pyrrolidine.
Patent GB-480950-A (GB)
Title: Improvements in, or relating to, the production of artificial fibres
IPC: D01D5/04
Filed: 1936-07-28
Abstract: <PICT:0480950/IV/1> <PICT:0480950/IV/2> The streams of solution discharged from nozzles 2a into a strong electric field are collected in the form of filamentary material on spaced charged elements 4a, for example, on the pointed ends 4b of the bar-like elements carried by a travelling band 4 or by a wheel.  By this arrangement the removal of solvent is facilitated and at the same time adhesion of adjacent filaments is prevented. The sliver so collected is continuously stripped from the collector by means of a plate 8 notched to engage the elements 4a and to be driven by them, the axis of the plate being inclined and the plate being positioned so that the sliver is withdrawn from the points of the elements and wound up on a reel 9; alternatively, the sliver may be attached by means of air jets.  A second set of nozzles 2a and collecting elements 4b may be arranged on the opposite side of the band 4.  The nozzles, or the solution, are connected to one pole of the high tension generator 3, and the other pole is connected either to a discharge element 7 forming a spark gap or directly to the band.  A charged screen 10 above the nozzles assists in guiding the filaments to the collecting electrodes 4b; other means to prevent the escape of filaments are the use of a warm atmosphere in the spinning room or a current of hot air flowing in the direction of spinning.  A suitable spinning solution consists of cellulose acetate dissolved in acetone and monomethylether of ethylene glycol; in order that the solution may be reasonably good electrical conductor, 2-3 per cent of water may be added; it is important that the viscosity of the solution be suitably adjusted.  British Specification 364,780 and U.S.A.  Specifications 705,619 and 745,276 are referred to.
Patent GB-1027905-A (GB)
Title: Improvements in or relating to shaft seals
IPC: F16J15/38
Filed: 1964-05-20
Abstract: 1,027,905. Mechanical seals. GITS BROS. MANUFACTURING CO. May 20, 1964, No. 20838/64. Heading F2B. In a mechanical seal for a rotary shaft 14 and comprising a rotary sealing ring 39 in facial sealing contact with a non-rotary sealing ring 29, the ring 39 is supported and driven by a support ring 31 which is secured to the shaft and has a part-spherical seating 35 engaged by a complementary part-spherical surface 42 of the ring 39 and tangs 38 that engage slots 46 in the ring 39 with axial clearance to thereby permit tilting movement between the rings 31 and 39. Leakage between the rings 31 and 39 is prevented by a rubber O-ring 37. The ring 29 is of carbon and is mounted in a carrier ring 23 which is slidably housed in a U-section casing 11, sealed thereto by a rubber 0-ring 25 and urged towards the ring 39 by two wave springs 21 separated by a washer 22. Grooves 27 on the ring 23 are engaged by lugs 26 on the casing 11 which is press-fitted in the shaft housing 13.
Patent GB-1176394-A (GB)
Title: An Improved Photoelectric Exposure Meter
IPC: G03B7/099
Filed: 1967-05-04
Abstract: 1,176,394. Exposure meters. NIPPON KOGAKU K. K. May 4, 1967 [May 7, 1966], No.20840/67. Heading G2A. A photo-electric exposure meter for carrying out wide and narrow view photometric measurements includes a plurality of photo-sensitive resistors defining a surface for receiving an image of the scene. A switch SW connects all the resistors in circuit in one position, corresponding to a wide view, and in another position only those resistors in a selected area of the image receiving surface, the value of the resistance connected in circuit being approximately the same in each case. The meter may be included in a single lens reflex camera Fig. 1 (not shown) such that a photoconductive cell (R) composed of separate resistors receives light through the camera objective. Terminals a, b, c, and d, Fig. 4, are connected to the respective resistors. A view-finder may be marked with the view substantially coinciding with the portion of the light receiving surfaces.
Patent GB-406202-A (GB)
Title: Take-up mechanism for sewing machines
IPC: D05B51/00
Filed: 1933-07-25
Abstract: 406,202. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) July 25, 1933, No. 20906. [Class 112.] A take-up comprises two oscillating levers 35, 45, which approach to and recede from the main-shaft 12 together. The levers are pivoted at 29, 41 and are oscillated by sliding connectors 38, 49 pivoted on a crank disc 25. The take-up is used with a plurality of separately tensioned needle-threads. Lubricating.-Lubricant flows from a reservoir 60, through a channel 63 to the needle-bar crank-pin 15. The excess from the bearing 13 flows through a channel 66 to a reservoir 67 from which wicks lead to the sliding connectors.
Patent GB-1359753-A (GB)
Title: Post pallets
IPC: A47B57/08
Filed: 1973-05-04
Abstract: 1359753 Load handling pallet PRESSED STEEL FISHER Ltd 4 May 1973 [5 May 1972] 20922/72 Heading B8H A post pallet comprises a rectangular base frame with upstanding posts 20 each formed of a pair of angle section members 21. A plurality of support members 25, 26 are mounted on each post to form a series of vertical spaced sets of supports for supporting vehicle roof panels. Each support member 25 comprises -a box section member with a ball 31 entrapped therein, a load engaging plate 28 welded to one end and a bush 27 welded to the underneath. A pivot pin 29 extends through the bush to mount the member on the posts whereby as the member is pivoted from a retracted position to an extended position or vice versa the ball moves across the pivot axis to hold the member in its position. Steps 30 are provided to abut the members 25 at their end positions.
Patent GB-311599-A (GB)
Title: Improvements relating to model locomotives, boats and other mechanical toys
IPC: A63H29/04
Filed: 1928-07-19
Abstract: 311,599. Walker, H. E., and Fenn, H. H. July 19, 1928. Mechanical toys; boats.-The speed of a toy locomotive, ship, or other clockwork or electrically driven toy is controlled by the application of a variable frictional resistance to the floating disc of a centrifugal governor connected to its mechanism. The centrifugal governor F, of the type usually employed to control a gramophone motor, is mounted upon a spindle D driven through gearing B, C, from any convenient shaft A. A floating disc G is drawn along the spindle D by the governor and presses against a friction pad M. The position of this pad is adjusted by a finely-screwed rod Q working in a block R and bearing against a spring-controlled lever N, L, attached to the pad.
Patent GB-202655-A (GB)
Title: Improvements in bridges for violins and analogous stringed instruments
IPC: G10D3/04
Filed: 1923-08-20
Abstract: 202,655. Casteleyn, M. Aug. 21, 1922, [Convention date] Violin &c. bridges formed of two or more parts have the grain of the upper part 1 arranged parallel to the plane of the strings and the grain of the lower part 4 perpendicular thereto, a wedge on the lower part engaging a V- groove on the upper part. The blank shown is then cut to the required shape. The Specification as open to inspection under Sect. 91 (3) (a) states that the part 4 may be made of fir. This subject-matter does not appear in the Specification as accepted.
Patent GB-570059-A (GB)
Title: Improvements in and relating to current transformers
IPC: H01F38/28
Filed: 1943-12-15
Abstract: 570,059.  Current transformers. HOBSON, A., and SMITH & CO. (TRANSFORMERS), Ltd., F. C. Dec. 15, 1943, No. 21026. Addition to 555,739. [Class 38 (ii)] Phase angle and ratio errors are eliminated from a current transformer comprising a primary 1 and secondary 3 on a core 2 by injecting into the secondary circuit a voltage derived from a secondary 5 on a core 6 of a compensating transformer excited by the current in the primary 1, the voltage being determined by an impedance 9 connected directly across the secondary 5 instead of across a tertiary winding on the core of the compensating transformer as in the parent Specification.
Patent GB-219824-A (GB)
Title: Improvements in or relating to sliding window closures
IPC: E05F11/38
Filed: 1923-08-20
Abstract: 219,824. Beaton & Son (1919), Ltd., G., and Beaton, G. Aug. 20, 1923. Sliding-window opening and closing apparatus. - Sliding windows, particularly of motorcars, are operated by a rack K attached to and spaced from the window and a pinion engaging same, rotated by the handle H. Means, such as a roller R which may be spring-pressed, are provided to maintain the rack and pinion in contact. Holding-means consist of two studs, g<1>, g<2> adapted to be engaged frictionally with a fixed sleeve by means of a conical screw N.
Patent GB-614479-A (GB)
Title: Improvements relating to petrol or like vapour ignition devices
IPC: F23Q2/08
Filed: 1946-07-15
Abstract: 614,479. Frictional pocket igniters. CRANKSHAW, H. M. July 15, 1946, No. 21067. [Class 75 (iii)] The friction wheel 22, Fig. 5, of a lighter is operated by the pivoted lid 23, which is retained in its closed position against the action of a tension spring 30 by a pair of co-acting spring pressed catches 33 having projections 33a, Fig. 9, which engage the sides of the pivoted end of the lid 23. The catches 33, mounted on vertical pivots 34, are maintained in engagement with the lid by a spring 35, and are released by pressure between the finger and thumb. To provide adjustment of the spring 30, the lower end thereof is anchored to a disc 32 engaged in screw threads in a cylindrical cavity 16. The lid 23 is pivotally mounted on knuckles 23a, 23b, hinged on a pin 28, and when it is opened ratchet teeth formed on one face of the friction wheel 22 are engaged by a pawl 29 constituted by a laterally bent part of a ring 29a secured to and rotatable with the knuckle 23a. A wick cover 21 is attached to the lid 23 by strip metal spring 21a so that it is pressed resiliently against the bottom of the recess surrounding the wick when the lid is closed. In an alternative construction the anchor disc 32 abuts without screw-threaded engagement against an annular shoulder in the cavity 16, and the axis of the cylinder 16 is inclined upwardly towards the middle plane of the body of the lighter.
Patent GB-167760-A (GB)
Title: Improvements in automatic rifles
IPC: F41A9/72
Filed: 1921-08-09
Abstract: 167,760. Declaye, J. Aug. 10, 1920, [Convention date]. Breech actions, sliding breech-block.-Relates to automatic rifles having a cocking-slide which, while remaining connected with the breech-block, does not recoil therewith during automatic action. According to the invention, the cocking-slide 28 is arranged on the longitudinal axis of the breechblock 27, which telescopes on the slide during the normal recoil of the breech-block. In the construction shown, the cocking-slide comprises a tube 28 having, at the front, a flange 29 engaging a rear plug on the breech-block. The tube 28 is normally maintained in its forward position by a spring. The tubular magazine 1 shown is secured at the front by a bolt 6 passing through a lug 7 and screwing into a block 4 fixed to the barrel, and at the rear by a detachable bracket 10. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the mounting of the firing and safety mechanisms on plates integral with the magazine. The trigger 17, Fig. 5 (Cancelled), and sear 19 are pivoted on plates 3, 24 integral with the rear of the tubular magazine 1, and the lever 22 for disengaging the searactuating link 16 from the sear is pivoted on a plate 2. The safety device is mounted at 23 on the plates 3, 24. This subject-matter does not appear in the Specification as accepted.
Patent GB-169844-A (GB)
Title: Improvements in valves and valve gear for rock drills
IPC: B25D9/18
Filed: 1920-07-13
Abstract: 169,844. Rayner, G. H. T. July 13, 1920. Fluid-actuated gears.-In a gear of the kind described in Specification 6580/14, wherein the valve is thrown or balanced by air supplied from the main cylinder, the air for effecting the valve movement in either direction is supplied through the same cylinder port or ports. The valve v has an enlarged, exhaust-controlling, central collar z, and intermediate collars S controlling the admission through ports b, b<1>. The valve ends move in ported bushes r, r<1>, and have annular grooves and ports y, y<1>, c, d, c<1>, d<1>. The balancing-ports f, f<1> are connected by a passage g permanently open to the atmosphere by a leakage port z<1> which prevents valve fluttering, and communicate with the cylinder at the same point. The left-hand end of the valve chamber is supplied with locking-fluid through ports b, y, c; the righthand is put to exhaust through ports d<1>, f<1>, g, z<1>. On the piston moving to the left, the valve ends are balanced and the valve is moved to the left by the pressure on the central collar.
Patent GB-402886-A (GB)
Title: Improvements in fuel injection pumps for diesel engines
IPC: F02M59/24
Filed: 1933-01-30
Abstract: 402,886. Fuel - injection pumps. ALDER, S., 3, Westcliffe Road South, Roker, Sunderland. Jan. 30, 1933, No. 21251/32. [Class 102 (i).] In a fuel-injection pump for Diesel engines the amount of fuel delivered at each stroke of the pump may be varied by axially adjusting a sleeve 4 which embraces the piston 2, the position of the inlet ports 10 thus determining the amount of fuel injected. A cut-off of the injection is ensured by providing the plunger 2 with a duct 8 terminating in lateral ports 9, pressure being relieved through the outlets 12 in the sleeve 4 when the ports 9 clear the edge of an adjustable guide 3.
Patent GB-1222772-A (GB)
Title: Hydrocracking process
Inventor: HASS ROBERT H
IPC: C10G47/16
Filed: 1969-04-25
Abstract: 1,222,772. Making propane-butane mixtures. UNION OIL CO. OF CALIFORNIA. 25 April, 1969, No. 21288/69. Heading C5E. Propane-butane mixtures (LPG) are made by catalytic hydrocracking a mineral oil boiling below 650 F., and preferably below 500 F., at a temperature in the range 500 to 800 F. and at a pressure above 400 p.s.i.g. The catalyst comprises a minor amount of a Group VIII metal on a crystalline silicons zeolite base, e.g. Ni and/or Co on an alumino-silicate molecular sieve base. Suitable feedstocks are light and heavy gasolines, light gas oil and kerosene, and the feedstock should be completely vaporized in the reaction zone. Temperature, pressure and space velocity are correlated to give at least 40 vol. per cent LPG per pass, based on feed, and to minimize methane-ethane production, a maximum pressure of 3000 p.s.i.g. and space velocities in the range 0À5 to 12 being mentioned. Unconverted feedstock is recycled or passed to a second reactor. In the catalyst a substantial proportion of the ion-exchange capacity is satisfied by hydrogen ions or polyvalent metal ions, including rare eath metals. Natural or synthetic zeolites may be employed. In specific examples, C 5  and higher hydrocarbons amounting to over 50 vol. per cent of the feed are produced.
Patent GB-1332287-A (GB)
Title: Fluid fitting
IPC: F16L5/00
Filed: 1972-05-08
Abstract: 1332287 Pipe couplings FORD MOTOR CO Ltd 8 May 1972 [29 June 1971] 21310/72 Heading F2G In a quick-release coupling e.g. for an oil cooler in an hydraulic drive transmission, a tube 40<SP>1</SP> is retained by means of a sheet metal sheath 22<SP>1</SP> in a collar 18<SP>1</SP>. Lips 38<SP>1</SP>, 34<SP>1</SP> seal against the tube and collar respectively and the tube can be withdrawn by squeezing arms 28<SP>1</SP> together, to retract tabs 26<SP>1</SP> from groove 24<SP>1</SP>. In another form, the sheath (22, Fig. 2, not shown) may be of nylon or other plastics material.
Patent GB-1379352-A (GB)
Title: Auxiliary safety device for braking systems
IPC: B60T17/22
Filed: 1973-05-04
Abstract: 1379352 Anti-theft devices SAFETY DRIVE INDUSTRIAL CO Ltd 4 May 1973 21339/73 Heading B7J [Also in Division F2] A device enabling fluid pressure brakes to be locked on to prevent theft and operated by a hidden switch comprises a centre core 2 of insulating material having a bore 22 extending therethrough, a plunger 4 slidably mounted in the bore, a pair of coils 33A, 33B disposed at each side of the core and energizable to electromagnetically operate the plunger 4 to open or close a fluid flow channel between an inlet 5 and an outlet 6. A spring-urged ball 26 can engage either of two grooves 47 in the plunger to locate it. When the plunger is in the energized position a pin 65 closes the entrance 67 of outlet 6 and a ball 434 seals channel 41. In addition a metal ring 46 engages a contact 27 to complete the horn circuit so that if an attempt is made to start the engine the horn sounds an alarm.