baber/WOPTO huggingface dataset:
Patent GB-1017434-A (GB)
Title: Process for the polymerisation of lactams
IPC: C08G69/20
Filed: 1964-04-08
Abstract: A process for making shaped polyamide structures comprises melting and polymerizing during the shaping step, a lactam monomer containing more than six ring members and which may be substituted on one of its carbon atoms, in the presence of an alkaline catalyst, an activator and a carboxylic and/or sulphonic acid amide of the general formula <FORM:1017434/C3/1> or <FORM:1017434/C3/2> where R1 and R2 are alkyl or aryl radicals, R3 is hydrogen or an alkyl, aralkyl, aryl or alkaryl radical and R4 is an aryl or alkyl radical; dialkyl sulphoxides; dialkyl sulphones or mixtures thereof, at a temperature between the melting point of the lactam and just below the melting point of the polymer.  Specified lactams are e -caprolactam, C-methyl-e -caprolactam, o -caprylactam and o -laurolactam. Specified additives are dimethyl formamide, N : N-dimethyl - acetamide, N : N - dimethyl - benzamide, N : N - dimethyl - p - toluenesulphonamide, dimethylsulphoxide and dimethylsulphone. Specified activators are acid halides, urea derivatives, guanidine derivatives, cyanamide derivatives, carbamic acid derivatives, isocyanates, carbodiimides and N : N-diacylamines.
Patent GB-1070639-A (GB)
Title: Chain guide
IPC: B66D3/26
Filed: 1966-04-01
Abstract: 1,070,639. Guiding chains, DEMAG-ZUG G.m.b.H. April 1, 1966 [Sept. 24, 1965], No. 14647/66. Heading B8B. A chain guide having a cruciform arrangement of guide grooves for circular sectioned steel chains comprises cavities 2a, 4a in the grooves, which cavities diverge towards the chain inlet face of the guide, the cavities of opposed grooves being adapted to receive a chain link 7 transverse to the chain axis, whereupon the following link 8 abuts the face of the guide, and the link 7 is turned into its correct altitude by the leading link 6. The length of the cavities corresponds to the length of a link and the width of the divergent end of a pair of cavities is in excess of the length of a link.
Patent GB-422879-A (GB)
Title: Devices for demonstrating certain facts connected with acoustics and mechanics
IPC: G09B23/14
Filed: 1934-05-15
Abstract: 422,879. Educational appliances. JACOB, C. T., 9, Marlborough Gate, St. Albans, Hertfordshire. May 15, 1934, No. 14679. [Class 146 (ii)] A device for demonstrating laws of acoustics and mechanics comprises a loaded vibratory string which is connected at one end to an end of a sound board or an extension thereof and at the other end contacts with a bridge near the other end of the board, the bridge or the board being provided with an aural or visual indicating device which enablesvibrations of the bridge or board set up by the vibrating string to be counted. The sounding board 4 is provided with a frame extension 1 and a bridge 5 which is pivoted to the board, a string 8 centrally loaded at 9, by a weight which may be hollow and interchangeable or variable, being secured to one end of the extension 1 and to the bridge 5 and being suitably tensioned by a spring 10. The bridge 5 may carry an arm 6 to which is attached a tapper adapted as the bridge vibrates to strike an anvil fixed to the board. The tapper and anvil may comprise electric contacts in the circuit of a lamp or of an electromagnet forming part of a recording device including a rotating drum on which a mark is made every time the contacts engage. In a modification, the string 8 is tensioned by two strings fastened one at each end of the bridge and to the board and united by a central spring ; vibrations are then observed by watching the movements of the two strings. The string may pass over the bridge and be secured to one element of a spring balance, which is adjustable to vary the tension, or to weights or pulleys as in a sonometer. In a modification the sounding board is of thin board and is flexible and carries a tapper which engages a fixed anvil as the board vibrates, and the string is adjustably tensioned by means of a calibrated rotatable pin at the end of the frame 1 to which one end of the string is attached, the string passing over the bridge and being secured at its other end to the sounding board. The indicating device may alternatively be a reflecting mirror, light beam projector, &c., and the bridge or the board may be provided with such devices. The string tensioning means may be in the form of adjustable weights, and two or more vibrating strings may be provided on one board and may be loaded at different points to show the relative motions of parts of strings sounding upper partials.
Patent GB-1018194-A (GB)
Title: Improvements in or relating to box wheels for printing and like machines
Inventor: HUTTON HARRY
IPC: B41F13/14
Filed: 1963-04-16
Abstract: 1,018,194. Printing apparatus. WOODS ENGINEERS (RAMSBOTTOM) Ltd. April 16, 1964 [April 16, 1963], No. 14730/63. Heading B6C. [Also in Division F2] A printing roller gear 6 is adjustably coupled to a coaxial driving gear 5 by worm-wheel 14, dog-clutched at 15 to gear 6, meshing a normally static worm 16 carried in a gear case 12 fast on gear 5, rotation of worm 16 in any direction to vary the phase relationship between gears 5 and 6 being effected by a stationary electric motor 31 connected by worm train 23, 22, 20, 19 with worm 16. The motor shaft rotates idly until energized by remote push-buttons.
Patent GB-887235-A (GB)
Title: Improvements in or relating to roll film photographic cameras
IPC: G03B1/66
Filed: 1958-05-08
Abstract: 887,235. Photographic roll film cameras. HEIDECKE, R., and FRANKE, H., [trading as FRANKE & HEIDECKE FABRIK PHOTOGR. PRAZISIONS - APPARATE.]. May 8, 1958 [July 11, 1957], No. 14755/58. Class 98(1). In a roll film camera, e.g. a twin lens camera in which the film metering and/or counting mechanism is driven from a measuring wheel which bears resiliently on the spooled film and is freely rotatable on a shaft parallel to the spooled film axis and operating said mechanism, the measuring wheel is coupled at will to the shaft or to intermediate gearing driving the shaft. As shown, the shaft 1 supported by a ball journal 4 on the camera wall 3 carries a gear 5 driving the film counter (Fig. 1, not shown), a gear 10, a rotatable hub 17 on which is formed the measuring wheel 15 engaging the spooled film S, and an axially slidable and freely rotatable sleeve 18 having fingers 19 keying the sleeve to the hub 17. A spring clip 21 seated between the enlargements on the sleeve 18 and having arms 22, 24 lying in axial grooves in these enlargements keys the sleeve to the shaft 1 by arm 22 engaging in a recess 23 in the shaft, the arm 24 engaging in a circumferential groove 25 in the shaft to locate the sleeve 18 axially. If a larger format is employed so that the feed per frame is greater, the sleeve is moved to the right, when it is released from driving engagement with the shaft, and, when located with the arm, 24 in the groove 26 in the shaft, brings a gear 20 on the sleeve to mesh with a gear 14 fixed on a hub 13 common to the gear 11 which is permanently in mesh with the gear 10, so that the wheel 15 drives the shaft 1 and gear 5 through the intermediate gearing 20, 14, 11, 10. If more than two formats are to be used more than one intermediate gearing may be provided by securing further different gears 14 on the hub 13 for engagement by the gear 20 by sliding the sleeve 18 to any one of a corresponding number of latching positions on the shaft 1.
Patent GB-1399226-A (GB)
Title: N-substituted pyrrolidine ester salts thereof and pharmaceutical compositions containing them
IPC: C07D295/088
Filed: 1973-03-27
Abstract: 1399226 The benzilic ester of N-(2-hydroxyethyl) - 2,5 - dimethylpyrrolidine INSTITUT DE RECHERCHE SCIENTIFIQUE 27 March 1973 [28 March 1972] 14759/73 Heading C2C The novel benzilic ester of N-(2-hydroxyethyl) - 2,5 - dimethylpyrrolidine and its pharmacologically acceptable salts may be prepared by reacting N - (2 - chloroethyl) - 2,5- dimethylpyrrolidine with benzilic acid in the presence of isopropanol followed, if desired, by reaction with a salt forming moiety, e.g. methyl bromide. Pharmaceutical compositions having spasmolytic and antiulcerous activity for oral or intraperitoneal application comprise the benzilic ester of N - (2 - hydroxyethyl) - 2,5 - dimethylpyrrolidone or its N - methylbromide and a pharmacologically acceptable excipient.
Patent GB-118497-A (GB)
Title: Improvements in the Feed Mechanism of Drilling and other Machine Tools.
Inventor: CHARTERS JAMES
IPC: B23B45/12
Filed: 1917-10-12
Abstract: 118,497. Charters, J., and Neil, J. Oct. 12, 1917. Drilling. - A ball thrust bearing is applied to the feed screw or nut of an engineer's ratchet brace or the like. In one form, the upper or point portion a is formed with a pin c secured in the socket d of the screw b by a cross-pin e, the parts a, b having races f, f for balls h. The lower part b may be an elongated nut fitting over the screw, and in either case the ball races may be formed separately from the parts a, b and may be provided with enclosed joints and oiling-devices.
Patent GB-593745-A (GB)
Title: Improvements in or relating to vehicle body mountings
IPC: B62D27/04
Filed: 1944-08-02
Abstract: 593,745. Mounting vehicle bodies on underframes. WEYMANNS, Ltd., (formerly WEYMANN'S MOTOR BODIES (1925), Ltd.), and DODSWORTH, W. E. Aug. 2, 1944, No. 14783. [Class 108 (ii)] The side members 43, Fig. 1, of the body framework of a vehicle are supported by tubular transverse bearers 1 each connected to the chassis frame by at least one joint comprising a rubber, leather or like flexible sleeve 7 interposed between the bearer and a sleeve housing which is rigidly secured to the chassis frame. As shown in Figs. 1, 2, the sleeve housing consists of a bracket 3 bolted to the chassis longitudinal 2 and a semi-cylindrical strap 5 bolted to the bracket 3, the sleeve 7, which may be formed with projecting end flanges to prevent axial displacement, being bonded to the bracket 3 and strap 5 or to a split metal liner detachably mounted in the housing. The bracket 3 is of inverted L-shape, one arm resting on the longitudinal and the other forming a plate 15 adapted to be bolted to the longitudinal. Alternatively, the bracket may terminate just below the portion containing the rubber &c. bush and may be bolted to the upper surface of an invested L-shape bracket which, in turn, is bolted to the side of the longitudinal. The member 43 may be pivotally attached to the bearer 1 by a bolt 8 or may be attached by a connection including a rubber or like bush. In another construction, Fig. 9, the tubular bearer 22, which may be reduced in diameter in one or more steps, such as 28, from the middle towards each end, is mounted in a split sleeve housing 23, 24, 25 containing a rubber or like sleeve 27 and supported by a tubular or other cross frame member 28 secured between the chassis longitudinals 2. A readily removable floorboard over each bearer permits access to the joints.
Patent GB-896421-A (GB)
Title: Timing control system for textile apparatus
Inventor: SAFLEY LOUIS HERMAN
IPC: D01H5/36
Filed: 1959-04-30
Abstract: 896,421. Slubbing motions. CHEMSTRAND CORPORATION. April 30, 1959, No. 14790/59. Class 120(2) [Also in Group XXXVIII] A slubbing mechanism for injecting slubs into yarn in a random fashion is controlled by a solenoid 48 actuated by a timer 52 (see Group XXXVIII). The mechanism is normally driven with the back shaft speed determined by the ratio of the gear wheels 24, 26 and slubs are injected into the roving by momentarily disengaging clutch plates 27, 28 and engaging clutch plates 37, 38 to speed up the back shaft. The clutch plate 38 is operated from the solenoid 48 through a link mechanism 47, 46, 41 pivoted on a rod 42 and the clutch plate 28 is operated by an arm 31 pivoted about a rod 32 and connected to the arm 41 of the link mechanism by a screw 44 which is adjusted such that one clutch plate disengages before the other engages.
Patent GB-457327-A (GB)
Title: Improvements in and relating to water heaters
IPC: F24H1/18
Filed: 1935-05-21
Abstract: 457,327. Heating water. SNELL, C. SCOTT-, East Prawle, Salcombe, Devon, and C.S.S., Ltd., Columbia House, Aldwych, London. May 21, 1935, Nos. 14798 and 18281. [Class 64 (i)] A water heater is divided into compartments 3, 4 by a partition 5 having a central opening 6 surmounted by a steam dome 8 carrying a smalltube 10 through which water can flow from the upper to the lower compartment. A stand pipe 9 extends to the top of the upper compartment, above the water level therein, and depends into the lower compartment to define the water level therein. The tube 10 may be replaced by a groove made between surfaces of the dome 8 and a coaming 7 over which the dome fits. The stand pipe and dome may be connected integrally to facilitate withdrawal to enable the lower compartment to be cleaned ; or the dome may be replaced by a screwed down water-tight cover for this purpose.
Patent GB-540356-A (GB)
Title: Improvements in sockets for tubular lamps or the like
IPC: H01R33/08
Filed: 1940-10-03
Abstract: 540,356. Lamp-holders. BRITISH THOMSONHOUSTON CO, Ltd. Oct. 3, 1940, No. 14846. Convention date, Oct. 3, 1939. [Class 38 (i)] A tubular lamp having at each end two contact prongs 2 is supported in holders, each having a slot 22 into which the prongs 2 are passed and contacts 19, 20, one 19 having a resilient end 31 extending across the slot so as to be depressed by one prong 2 to allow the other to be turned laterally to engage beneath the hooked end 28 of the other contact 20. The contacts are separated by a barrier 16 that also supports the contacts in co-operation with recesses 29, 34 in the base of the holder. The holder is made in two halves that fit together to enclose between them the contacts and also a pair of nuts 39 into which screws can be inserted through a mounting plate by way of holes 41. In a modification the end 31 of the lower contact may be non-resilient, the end 28 of the upper contact being such as to allow the corresponding prong to snap under it.
Patent GB-1429007-A (GB)
Title: Reactive copper-containing monoazo dyestuffs
IPC: C09B62/095
Filed: 1973-03-28
Abstract: 1429007 Reactive copper-containing azo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 29 Jan 1974 [28 March 1973] 14848/73 Heading C4P Novel dyestuffs of Formula 3 where p is 0 or 1, one B is H and the other is SO 3 H and X is CH 3 , OCH 3  or Cl are prepared (a) by condensing cyanuric chloride, in either order, with a compound of Formula 4 with a compound of Formula 5 or (b) by subjecting a dye of Formula 7 to an oxidative coppering treatment. The dyestuffs of Formula 3 give reddish-blue shades on cellulose textile materials and on wool, silk and nylon.
Patent GB-144283-A (GB)
Title: Improvements in apparatus for regulating the volume of flow or pressure of fluids
IPC: G01P3/04
Filed: 1920-06-01
Abstract: 144,283. Reineke, J. H. Feb. 16, 1916, [Convention date]. Clock-work actuated valves; valves actuated by rotary motors.-A valve device for controlling the flow of fluid, particularly applicable for use in chemical laboratories and for photometric work, comprises a throttling-device actuated directly or indirectly by a motor mechanism, the speed relationship of which is influenced directly or indirectly by the pressure of the stream of fluid. In the form shown, the device comprises a pair of valve disks b, b<1> provided with ports e, e<1>, the disk b<1> being rotated by clock-work c while the disk b is rotated by a motor g actuated by the stream of fluid. In a modification, the motor acts through a centrifugal device.
Patent GB-149370-A (GB)
Abstract: 149,370. Wellington, J. M., and Mackenzie, D. G. Feb. 18, 1919. Two-stroke-cycle engines.-A piston 6 reciprocates in a cylinder 1 over an extension 8 of which slides a cover 10 connected by outside rods to eccentrics or cranks on the crank shaft, the cover 10 having a shorter stroke than the piston. Air is drawn into the pump space 10<x> through a valve 15; and a valve 16 serves to transfer the charges from the pump space to the combustion chamber X. Fuel is injected into the combustion space through a nozzle (not shown), and the burnt gases escape through terminal ports in the cylinder 1. The cylinders may be arranged radially.
Patent GB-347900-A (GB)
Title: Improvements in and relating to high speed drives
IPC: B04B9/12
Filed: 1930-05-15
Abstract: 347,900. Centrifugal machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 15, 1930, No. 14984. Convention date, May 15, 1929. [Class 23.] Driving, suspending, balancing.-A centrifuge, spinning can or like apparatus rotating about a vertical axis is connected through a resilient member to the rigidly mounted vertical driving shaft. The spinning can x, Fig. 4, is supported by springs a, a<1> on the driving shaft y, these springs being used to damp out small oscillations of the can. More powerful springs b, b<1> are brought into action to damp out large oscillations. In the modification shown in Fig. 5 a resilient member d of rubber is employed and small oscillations are damped by the parts which form the driving connections. When the oscillations are large the rubber makes contact with the support at the points b, b<1> and this tends to damp the oscillations.
Patent GB-347902-A (GB)
Title: Improvements in or connected with pressure limiting gauges
IPC: B60C23/00
Filed: 1930-05-16
Abstract: 347,902. Fluid-actuated valves. COY, W. E., 2, Courthope Road, Wimbledon Hill, and RANSOM, C., 33, Longley Road, Tooting, both in London. May 16, 1930, No. 15079. [Class 135.] A pressure limiting valve particularly adapted for use in connection with inflating means for pneumatic tyres &c. comprises a spring-loaded plunger 25 having a passage 33 through which air is introduced into the tyre and an escape passage 32 controlled by a valve 31 mounted on a spring arm 30. The valve is normally held to its seat by the adjusting nut 35 for the loading spring 28 engaging a projection 34 on the back of the valve. When the pressure has reached the desired maximum the plunger moves upward against the action of the spring to free the valve and allow fluid to escape through the passage 32. In its normal position projections 27a on a nut 27 on the plunger rest on corresponding projections 38b on a nipple 38 screwed into the bottom of the casing. In the form shown in Fig. 7 this nipple also forms the seating for the non-return inflating valve 40. In a modification the non-return valve is dispensed with and the lower part of the casing is formed as a screwed socket adapted to screw on to the nipple of an ordinary tyre valve. In a modification the passage 33 does not extend right through the plunger and the valve is held closed by a spring- loaded plunger mounted on a casing and adapted to be reset by hand. In the form shown in Fig. 11 the valve is formed as an elastic sleeve 51 mounted in a split collar 50a on an annular member supported on the plunger. The collar has projections 50b adapted, when pressed into engagement with a conical part 20b on the casing, to press the sleeve firmly against its seat. The member 50 is moved to its lower position by a ring 53 connected by arms 52 passing through slots 20d in the casing to a manipulating sleeve 54, slidably mounted on the casing.
Patent GB-832714-A (GB)
Title: Improvements in or relating to electric motor control apparatus
IPC: H02P5/74
Filed: 1957-05-13
Abstract: 832,714. Control of two A.C. motors. FERNSEH G.m.b.H. May 13, 1957 [May 12, 1956], No. 15125/57. Addition to 769,367, Drawings to Specification. Class 38 (3). If the two motors controlled in accordance with the system described in the parent Specification are loaded unequally, the voltage applied to the more heavily loaded motor is made greater than that applied to the motor with the lighter load. The voltage ratio may be adjusted by suitable choice of the ratio of an auto transformer connected across the supply to one motor and providing a reduced voltage for the other motor. The voltage ratio is set at a value which is substantially at the centre of a range of values wherein the maximum coupling torque between the motors is obtained. Alternatively, the motors may be dissimilar in construction so that they have inherent transformer ratios of unequal values. In this case, the relative values of the transformer ratios are chosen to afford the desired maximum coupling torque when equal voltages are applied to the supply windings of the motors.
Patent GB-1502807-A (GB)
Title: Signal directional tap
IPC: H03H7/48
Filed: 1975-04-14
Abstract: 1502807 Wired broadcasting systems; coupling circuits LINDSAY SPECIALTY PRODUCTS Ltd 14 April 1975 [19 April 1974] 15176/75 Headings H4R and H4A In a directional coupler which can be used in a wired broadcasting system a first, current sensing, transformer 10 is connected in series in the main distribution line 13 and a second, voltage sensing, transformer 20 is connected across the main distribution line and the secondary windings are connected in parallel to be aiding in respect of a signal travelling in the main distribution line from source 14 to load 18. The first transformer 10 has a turns ratio of 1/Nr and the second transformer a turns ratio of N, where N is selected to provide a desired attenuation from input to output of the coupler and r is the ratio of the coupler output impedance to the characteristic impedance of the line. The arrangement ensures that a signal, such as a reflection, travelling from the load 18 to the source 14 is not coupled to the take off point 26. As described a resistor 24 is connected in series with the secondary 22 of the voltage sensing transformer, with a compensating capacitor 23 in parallel. The combination 23, 24 may alternatively be connected to the output point 26. The output from the directional coupler at 26 is taken to a splitter circuit comprising autotransformers 27, 29 and 30 to feed four subscribers. Capacitors 28, 34, 35, provide frequency compensation for the leakage inductance of transformers 27, 29, and 30.
Patent GB-820634-A (GB)
Title: Improvements in or relating to wall bars, ladders and other gymnastic or exercise frames
IPC: A63B9/00
Filed: 1956-05-16
Abstract: 820,634. Hinges. OLYMPIC GYMNASIUM CO Ltd., and ALLEN, R. R. May 16, 1957 [May 16, 1956], No. 15308/56. Addition to 728,787 [Group XV]. Class 65(2) [Also in Group XV] A hinge for the upper end of a gymnastic frame pivoted to swing about a vertical axis, which allows the frame to tilt slightly, comprises a bracket 23, secured to a wall or the like having'a a vertical pin 22 which engages a slot 21 in a bracket 19 secured to the frame. The frame is held in its operative position by cables and one of these is arranged so that in this position it holds a latch 30 pivoted to bracket 19 across slot 21 so as to hold pin 22 at one end thereof. Specification 721,847 [Group XV] is referred to.
Patent GB-338529-A (GB)
Title: Improvements in or relating to liquid fuel level gauges
IPC: G01F23/16
Filed: 1929-05-16
Abstract: 338,529. Weymann, C. T. March 29, 1929, [Convention date]. Void [Published under Sect. 91 of the Acts]. Indicators actuated by pressure of head of liquid.-In liquid level indicators for fuel tanks of motor vehicles, of the kind in which air or gas is forced through an open pipe dipping into the liquid and its pressure measured, the pressure gas is derived from the engine exhaust pipe and is supplied to the dipping pipe through means which damp out any pressure variations. The exhaust pipe 5 is connected through a pipe of small bore 10 to a pipe 1 dipping into the fuel tank, and to a pipe 3 leading to a gauge 4 which measures the pressure due to the head of liquid. In another form, Fig. 2, the pipe 10 terminates within the larger pipe 1 leading to the gauge, and the end 10<b> is slightly above the lower end of the pipe 1 so that the pipe 1 is not connected to atmosphere through the pipe 10 when the engine is stopped, and correct indications are still given.