baber/WOPTO huggingface dataset:
Patent GB-375205-A (GB)
Title: Improvements in shock absorbers
IPC: B64C25/60
Filed: 1931-12-15
Abstract: 375,205. Hydraulic shock absorbers. HONE, J., Flin Flon, Manitoba, Canada. Dec. 15, 1931, No. 34719. [Class 108 (iii).] In shock absorbers more particularly for aeroplanes in which a hollow plunger 6 telescopes within a cylinder 3, an upstanding member 9 secured to the end of the cylinder passes through an orifice in the end 5 of the plunger, the member being tapered or graduated so as to provide liquid flow passages which diminish in area as the plunger moves into the cylinder. During the last stage of the compressive movement, the end 5 of the plunger engages a helical spring 11 and the hydraulic resistance is then reduced by the provision of a groove 13 in the member 9. The tapered or graduated member 9 may be replaced by a tube 15 having lateral orifices 16 as shown in Fig. 7.
Patent GB-814842-A (GB)
Title: Improvements in fluid-flow controlled electric switches
Inventor: COSIER JOHN EDWARD GEORGE
IPC: H01H35/40
Filed: 1956-11-14
Abstract: 814,842. Fluid actuation of switches. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 14, 1956, No. 34806/56. Class 38 (5). A fluid flow responsive switch has a pivoted flow resisting member biased against the flow, and a mechanical transmission from the member to the contacts which are actuated at a predetermined rate of flow, the member, the pivot, the biasing means and the transmission (which is provided intermediate its ends with flexible fluid-seating means) being all provided on a portion of the switch which may be detached without disturbing the fluid connections. The flow resisting member is a truncated cone 12 fixed to a flexible bellows 13 and biased to the right by a spring 48 against the flow which is from right to left. The cone is secured through a member 11 to a rod 10 in turn secured to a bellows 9 sealing an aperture 8 in a plate 5. The rod 10 is fixed to the cross-piece 24 of an H- shaped member 21, the side arms of which are pivoted at 20. The member 21 carries arms 40, 44 co-operating respectively with normallyopen contact springs 37, 38 and normally-closed springs 41, 42. When the cone is moved by the flow, member 21 pivots clockwise and changes over the contacts. The predetermined rate of flow is governed primarily by the length of the cone, and also by adjustment at 49 of the contact springs.
Patent GB-467437-A (GB)
Title: Improvements relating to the contacts of electric switches
IPC: H01H15/02
Filed: 1935-12-16
Abstract: 467,437. Switch contacts; actuation of switches. DUMERT, V., HEBARD, H. C., GREENWOOD, H., and ALADDIN RADIO PATENTS, Ltd. Dec. 16, 1935, No. 34917. [Glass 38 (v)] Co-operating contacts 2, 3 are made self-cleaning by causing a progressive wip - ing action of each contact along the length of the other during the switching movement and a retrogade movement of at least one contact at the end of the switch closing action so that the final contact is between surfaces already cleaned. In the form shown in Fig. 5, the contact 2 consists of a wire arranged as shown on both sides of the bar 1, and the contact 3 of a clip with raised central ridges embracing the bar 1. When the bar 1 is moved longitudinally to the right, the contact 3 wipes the contact 2 and the contact 2, owing to its inclination, moves up and down the contact 3, a final retrogade movement being produced by the bends in the wire 2. The bar 1 is also arranged to move backwards a short distance towards the end of the switching movement. This latter action is produced by the operating lever 4 being connected by a pin-and-slot 7, 7a with a link 6 connected to the bar 1, the pin slipping from one end of the slot to the other under the action of a string 8 when the arm 5 nearly reaches its final position. In a modification, Fig. 6, the retrograde movement of the bar 1 occurs after a pin 13 on an operating wheel 9, has passed the position m and proceeds to the final position n.
Patent GB-922927-A (GB)
Title: Method and apparatus for automatically bringing transverse ribs into position on tubes
IPC: B21D53/08
Filed: 1960-10-12
Abstract: 922,927. Making gilled tubes. HAPPEL G.m.b.H., [trading as GEA LUFTKUHLERGESELLSCHAFT HAPPEL G.m.b.H. & CO. KOMM.-GES]. Oct. 12, 1960 [Oct. 13, 1959], No. 34985/60. Addition to 918,710. Classes 83 (2) and 83 (4). Apparatus for pushing ribs 6 along heat exchanger &c. tubes 3 comprises rib-pushers 9 pivotally mounted on an endless band 10 for pushing the ribs along the stationary tubes 3 and pivoting into a release position, and a guide 23 for, and movable in the opposite direction to, the pushers 9. Ribs flanged around the hole or holes for the tube or tubes and preferably formed with spacing projections 45 are fed from a press 1 on to a spigot 5 in the end of a tube by a device (not shown), which may also thread them on to the tube. Alternatively, the ribs may be threaded on to the tube by the pushers 9. These are formed with openings 16, Fig. 3, for the tubes and pivot on the hinge-pins 11 of a chain 10 driven by a sprocket-drum 15 which engages rolls 14 on the pins 11. Outer rolls 12 on the pins are guided in channels 13. The guide 23 also consists of a chain, carrying blocks 22 on which slide the feet 21 of the pushers. Adjustment of the chain 23 is by a sprocket 27 or a sprocket 28, Fig. 1. Between the end of chain 23, if this does not reach the end of chain 10, and the end of chain 10 is a stationary guide 41 on which the pushers turn into the top loop and are guided on to the blocks 22. The pusher turns about its pivot 11, releasing the rib, when its foot passes off the end of the last block 25. Spring-stops on a carriage 42 clamped to the chain 23 may engage the pusher to assist its release of the rib and turning into an inoperative horizontal position. An adjustable limit switch 44 is tripped by the chain 23 or carriage 42 after the last threading operation and stops the press and threading device. Drive for the apparatus is by a belt from the press-motor (Fig. 5, not shown). An infinitely-variable gearing is arranged in the drive to the sprocketdrum 15 and a further infinitely-variable gearing is included between the last gearing and a drive-sprocket 26 for chain 23. Clutches and an auxiliary motor are also included so that an auxiliary drive may be used to return the apparatus to its starting position. The pusher chain is driven in its normal direction while chain 23 is driven in reverse. Alternatively, the press-motor may return the apparatus, driving through a reversing gear, or the chain 23 may be returned manually, by means of crank 35, or the chain 23 may be returned in the forward direction by the auxiliary, or press, motor. Spacing of the ribs is adjusted by varying the speed of the chain 23 in relation to that of the pusher chain 10, which is travelling in the opposite direction.
Patent GB-800248-A (GB)
Title: Process for the manufacture of alkyl hydrazines
Inventor: CLARK CHARLES CICERO
Filed: 1956-11-16
Abstract: Monochloroamine is prepared by reacting at temperatures of from 0 DEG to 15 DEG  C. one to four equivalents of ammonia with an alkali hypochlorite solution having an initial concentration of 100 to 200 grams per litre.  The alkali hypochlorite may be prepared continuously in situ by passing chlorine into a continuous stream of caustic alkali maintained at 0 DEG  to 5 DEG  C., and ammonia may then be injected into such stream to react with the alkali hypochlorite.  In examples gaseous chlorine is passed into aqueous sodium hydroxide until the pH was 11 or still alkaline and the resulting sodium hypochlorite solution added to aqueous ammonia containing 0.2 per cent by weight of glue to yield an aqueous solution of monochloroamine.ALSO:Alkyl hydrazines having the formula <FORM:0800248/IV (b)/1> wherein R is an alkyl radical and R1 is hydrogen or an alkyl radical, are prepared by reacting in aqueous medium monochloroamine with an alkyl amine having the formula RR1NH. The reaction is preferably conducted at temperatures of from 10 DEG to 60 DEG  C. and using alkylamine to monochloroamine molar ratios of from 2 : 1 to 8 : 1.  The monochloroamine reactant may be prepared in situ by reacting one to four molar equivalents of ammonia with sodium hypochlorite in an aqueous solution maintained at a temperature of between 0 DEG  and 15 DEG  C.  The process may be adapted to continuous working. Specified amines are methylamine, ethylamine, diethylamine, dimethylamine, n-propylamine, isopropylamine, diisopropylamine, n - butylamine, and n-amylamine.  The examples describe the preparation of dimethylhydrazine.
Patent GB-324171-A (GB)
Title: Improvements in or relating to labelling machinery
IPC: B65C1/04
Filed: 1928-11-28
Abstract: 324,171. Molins, W. E., Chalmers, J. W., and Molins Machine Co., Ltd. Nov. 28, 1928. Affixing labels.-A labelling-machine comprises means for feeding packages by means of a conveyer in rapid succession into contact with a web of paper drawn through printing mechanism from a reel, the web being severed into labels after meeting the packages, which then move through means for folding the label round the package, gumming means for the web and for the ends of the labels being provided. In the form shown the web is fed from a reel 7, Fig. 1, through printing rolls 8 past an electric dryer 9 to a gumming roll 11. The web then passes across the path of a conveyer 4 provided with pushers 3 which feed the packages 1 from a pile 2. The web is severed by a cutter 12 as the package reaches it, and the label is folded as shown in Fig. 2 as the package passes under a guide plate 13 to a stacker 15. The package is lifted into the latter as shown in Fig. 3, the end of the label being gummed by an oscillating roll 13<a>. The projecting end is folded down as the package enters the stack, and is further folded along the under surface of the package by the next package. In another form the package meets the label midway of its length and both ends project rearwards; the lower projecting end is folded by a tucker, while the upper end is folded on the package entering the stack. The label may also be folded on the package by turning the latter through 180‹ in its passage to the stacker. For this purpose a turntable is interposed in the length of the conveyer.
Patent GB-856640-A (GB)
Title: Improved apparatus for use in distributing powdered or comminuted materials
IPC: A01M9/00
Filed: 1957-11-12
Abstract: 856,640. Powder distributers. HOWRYBERG STEEL & IRON WORKS Inc. Nov. 12, 1957 [Nov. 12, 1956], No. 35278/57. Class 6(1). Apparatus for distributing powdered material comprises a hopper from which material is fed through pipes 4 to a fan 1 mounted in a casing 2 provided with two outlets 56a on which may be mounted one or more flexible hoses. Flow of material from the hopper is controlled by a slide 7 operated by a member 11. Two agitators 28, 36 are provided, the agitator 28 being provided with brushes 32. The hopper is mounted so that it may be tilted as shown in Fig. 6. The apparatus may be mounted on a frame attached to a tractor, the fan being driven by the tractor power shaft, the frame providing a support for a boom which supports nozzles attached at the end of the flexible hoses. Alternatively the apparatus may be mounted on a stand and driven by a motor so that it may be used for dusting animals with insecticide. Specification 856,639 is referred to.
Patent GB-382460-A (GB)
Title: Electromagnetic air compressor or liquid pump, especially for high pressures
IPC: F04B25/00
Filed: 1931-12-21
Abstract: 382,460. Reciprocating motors. RIMSTAD, I. A., 3, Urbansgade, and TEILMANN, J., 186, Vesterbrogade, both in Copenhagen. Dec. 21, 1931, No. 35348. [Class 35.] An electromagnetically - actuated air compressor or pump comprises a cylindrical casing surrounded by solenoid coils 2, 3 and enclosing a core 4 axially bored to slide upon fixed plungers. The current to the coils 2, 3 is controlled by a switch 26 actuated by a pendulum 15 upon which is fitted a solenoid coil 16 surrounding an extension 14 of the core 4. A pendulum may operate independently of the core.
Patent GB-877476-A (GB)
Title: Band clamp
IPC: F16B2/08
Filed: 1959-10-19
Abstract: 877,476. Band clamps. HIGGINS, H. G. Oct. 19, 1959, No. 35377/59. Class 44. A band clamp comprises a supporting frame 1 having an elongated rigid arm 3 and a supporting member 2 arranged substantially at right angles to the arm, a pair of laterally spaced and opposed side flanges 4 extending upwardly from the supporting member 2, a cylindrical cam 7 mounted on and between the flanges 4 and arranged in clamping relationship with the upper side of the supporting member, a pressure block 9 slidably mounted on the arm 3 and having a transverse slotted opening 10 in its upper portion, a pressure screw 13 adjustably extending through the supporting member 2 and arranged in pressure applying relationship with the block, and a flexible band 15 having one end 15a extending into the opening 10 of the block and secured to the said block and arranged with its other end portion extending through the slotted opening 10, and between the cam 7 and the supporting member, the band being clamped between the cam and the upper side of the supporting member. In a modification a wire may be used in place of a flat band.
Patent GB-1534206-A (GB)
Title: Protective devices for electronic circuits
IPC: H02H9/04
Filed: 1977-08-24
Abstract: 1534206 Overvoltage protection circuit for transistors ROBERT BOSCH GmbH 24 Aug 1977 [25 Aug 1976] 35395/77 Heading H3T The output transistor 11 is protected by turning it on if the supply voltage is excessive. At a certain supply voltage, zener 18 will conduct, turning 15 on which supplies base current to 11 irrespective of the output from driver circuitry 10, which is protected by series resistance 14. With an inductive load 12 as shown, the arrangement 22, 23, 24 may be provided to deal with transients, but may be omitted if resistive loads, e.g. lamps are used (Fig. 1, not shown). Voltage limiting device 24 compensates for the voltage drop across 14 and may be a zener, diode, diode resistance or a direct connection. Diodes 20, 21 provide protection against supply polarity reversal and are in parallel with the parasitic diodes 110, 111 inherent in an integrated circuit embodiment. A common zener diode (18) may be used for both the supply voltage protection and the switching transient protection circuits (Fig. 3, not shown) in which the series resistor (14) and load (12) are connected to the negative supply rail.
Patent GB-622955-A (GB)
Title: Manufacture of ureas
IPC: C07C273/18
Filed: 1946-11-29
Abstract: Substituted ureas are prepared by condensing primary monoamines, or hydrazine, with carbon dioxide at elevated temperatures, e.g. 150-250 DEG  C. and pressures, e.g. 50-1500 atmos. optionally in the presence of a solvent such as water, ethanol, phenol or benzene.  Aliphatic, cycloaliphatic, aromatic and heterocyclic monoamines may be used either in their free states or as their carbonates, amines mentioned being: methyl-, ethyl-, n-butyl- and b -hydroxyethylamine, aniline, p-chloraniline, b -phenylethylamine and 2-aminopyridine.  With monoamines the condensation occurs between two molecules of amine and one of carbon dioxide with the elimination of one molecule of water and with hydrazine two molecules of hydrazine condense with two molecules of carbon dioxide to eliminate two molecules of water to give 1,2,4,5-tetrahydro-3,6-diketo-1,2,4,5-tetrazine. Mixed ureas may be obtained by using a mixture of amines.  In examples: (1) carbanilide; (2) N,N1-dimethyl-; (3) N,N1-di-n-butyl- and (4) bis-b -hydroxyethyl-urea are obtained from aniline, aqueous methylamine, n-butylamine and mono - ethanolamine, respectively.  The tetrakis-p-nitrobenzoyl derivative of bis-b -hydroxyethylurea is also prepared. Specification 321,566, [Class 2 (iii)], is referred to.
Patent GB-955713-A (GB)
Title: Improvements in or relating to cleaning or abrasive devices
IPC: A47L13/022
Filed: 1960-10-17
Abstract: 955,713. Pads. NEW HYGIENE Ltd., and A. R. MACKEWN. Oct. 17, 1961 [Oct. 17, 1960], No. 35548/60. Heading A4F. [Also in Division B3] A cleaning device to be held in the hand comprises two pads 10, 11 secured backto-back, and a flexible strap-like handle 13 extending transversely across one pad and arranged to be turned inside out so as to extend across the other pad. The handle may be constituted of an endless loop passing through a tunnel 12 between the two pads. In an alternative embodiment the pads comprise dissimilar prepared surfaces deposited on a common body. A pocket to accommodate cleaning material such as soap may be incorporated in the pad.
Patent GB-897069-A (GB)
Title: Improvements in or relating to push rods and methods of making the same
IPC: B23K11/00
Filed: 1960-10-20
Abstract: 897,069. Making push-rods. BUNDY TUBING CO. Oct. 20, 1960 [Feb. 12, 1960], No. 35979/60. Class 83 (2). [Also in Group XXVII] A method of making a push-rod 10 comprises providing a tube 54 which has an end portion forming a seat, providing an element 34 which has a first curved surface 52, a second curved surface 36 and a third surface 58, engaging said first curved surface 52 against said seat with said second curved surface 36 disposed exteriorly of the tube to form a bearing surface for engagement with mechanism with which said push-rod is adapted to be used and with said third surface 58 extending in a direction generally radially of the axis of said tube, applying longitudinal force to said third surface and said tube and thereby urging said first curved surface 52 against said seat and while continuing to apply said force, heating the inter-engaged seat and said first curved surface to form a fused connection therebetween. The element 34 is cold-forged from a case-hardening steel and has a spherical face 36 for engagement with a corresponding face on a tappet 12. A flange 40 provides a surface 48 which forms a seat for a spring 44 and a surface 58 which is engaged by a welding electrode 62. A cylindrical portion 50 serves as a pilot for centring the spring 64 and a cylindrical portion 60 locates the element radially relative to the welding electrode 62. To connect the tube and the element the conical projection 52 on the element is engaged with and urged against the square end of the tube 54 to which an electrode (not shown) has been attached and a welding current is passed between the said electrode and the electrode 62. As the wall of the tube softens the element 34 and the tube move toward each other so that the wall of the tube is flared and thus increases the width of the weld due to the formation of the fillets 66 and 68. Specification 897,068 is referred to.
Patent GB-344348-A (GB)
Title: Electric hand-lamp
IPC: F21L4/00
Filed: 1929-11-25
Abstract: 344,348. Electric battery lamps. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Burgess Battery Co. ; Main Street, Madison, Wisconsin, U.S.A.) Nov. 25, 1929, No. 36096. [Class 39 (ii).] In a battery lamp of the kind wherein a battery section and a lamp section are adjustably interconnected the sections are swivelled together on an axis at an angle to the longitudinal axis of the battery section, preferably by a swivelled mitre joint. In the form shown the lamp is of tubular construction with a lamp section 11, Fig. 4, and battery section 12 provided with adjacent end walls which are disposed at an angle of 45 to the axis of the lamp and consist respectively of discs 15, 18 of insulating material held in position by flanges 13, 17 at the ends of the sections, the discs having central interfitting depressions through which a metal rivet 26 passes to secure the sections together. The rivet 26 passes through metal contact strips 20, 23 secured upon the insulating discs by rivets 22, 24 respectively, the strip 20 being bent upwardly to abut against the central contact of the lamp 43 screwed into a metal reflecter 42 at the end of the section 11 ; the contact strip 23 is offset at 25 and riveted by a pivot pin 36 to a sector-shaped switch member 31, Fig. 7, of insulating material carrying a contact strip 33 adapted to make or break the connection between the metal strip 25 and a strip 29 which is riveted to the disc 18 and bears against the central contact 41 of the battery 39. A projection 32 on the switch plate 31 extends through a slot 37 in a depression 38 formed in the casing to receive a finger for operating the switch. In a modification, Fig. 10, the abutting portions 50, 51 of the lamp sections are substantially semi-spherical, the lamp section 52, as shown, being swivelled into a position at right-angles to the battery section 49.
Patent GB-1149805-A (GB)
Title: Improvements in or relating to liquid dispensers
IPC: B05B11/00
Filed: 1967-08-07
Abstract: 1,149,805. Reciprocating pumps. DIAMOND INTERNATIONAL CORP. Aug. 7, 1967 [Aug.26, 1966], No.36121/61. Heading F1A. A sleeve adapted to be fitted on the cylinder of a dispensing pump to enable it to be operated in an inverted position, the pump having an inlet 18 and an air bleed port 25 into the reservoir, comprises a liquid inlet port 32, communicating when the sleeve is mounted on the cylinder with the inlet 18 and a groove 35 adapted to communicate with the bleed port 25 and through a valve 36 with a port 40 leading into the interior of the reservoir.
Patent GB-1416969-A (GB)
Title: Signal discriminators
IPC: H04B7/10
Filed: 1973-07-30
Abstract: 1416969 Diversity radio reception systems; semi-conductor signal discriminating circuits CANADA MINISTER OF NATIONAL DEFENCE 30 July 1973 [28 July 1972] 36201/73 Headings H4L and H3T  For use in a diversity reception system, a discriminating circuit, Fig. 1, provides an output N proportional to the smaller of its two inputs X, Y, unless they have opposite polarities in which case the output is zero. It is assumed that the two inputs, which are from different receivers of the system, contain comparable wanted signal component amplitudes, and variable noise components. Thus selecting the smaller signal should give the smaller noise component. Opposite polarity signals would produce an ambiguous result, and so the output is made zero. A larger number of receivers can be connected in pairs to respective discriminators, and the output of these combined in further discriminators. Each discriminator, Fig. 1: (a) adds the inputs X, Y at 24 to give A; (b) half-wave rectifies X, Y and selects the positive results at B, C which are subtracted at 18 and full-wave  rectified at 20 to give F; (c) half-wave rectifies X, Y at 14, 15 and selects the negative results H, I which are subtracted at 19 and full-wave rectified at 21, to give L; and (d) adds A, L and subtracts F at 23, to give the required output. Filters are included at input and output to limit third harmonics. A more detailed version of Fig. 1 is given in Fig. 2 (not shown).
Patent GB-939028-A (GB)
Title: Improvements in or relating to cathode ray tube deflection systems
Inventor: BEURLE RAYMOND LOUIS
IPC: H01J29/76
Filed: 1960-10-21
Abstract: 939,028. Electron beam apparatus. ENGLISH ELECTRIC VALVE CO. Ltd. May 16, 1961 [Oct. 21, 1960], No. 36242/60. Class 39 (1). A cathode-ray tube is provided with an axial magnetic focusing field and an auxiliary deflection system 3 situated between the source 1 of the electron beam and the scanning system 4. The auxiliary deflection is at right-angles to the scanning deflection and is such that electrons travel in the direction of the resultant field of the focusing and scanning systems and thus follow straight rather than cycloidal paths. The tube may be a television camera of the image orthicon or vidicon type and may be provided with a further deflecting system 5 producing a force equal and opposite to that of system 3 so that electrons impinge normally on target 2. As shown, the coils 3, 4, 5 are connected in series, but shunt variable impedances may be provided for individually adjusting the coil currents. Coil 3 may also serve as an alignment coil.