baber/WOPTO huggingface dataset:
Patent GB-1394635-A (GB)
Title: Valve-play compensating device for an internal combustion engine
IPC: F01L1/24
Filed: 1973-09-19
Abstract: 1394635 Lubricating IC engine valve gear DAIMLER-BENZ AG 19 Sept 1973 [27 Sept 1972] 44006/73 Heading FIB [Also in Division F2]  I.C. engine lubricating oil supplied via duct 13 to a reservoir 12 of an hydraulic automatic backlash adjuster pillar 4 is passed through a defoaming device 19 for the removal of air, and then fed via a one-way valve 11 to the usual pressure chamber 10 of the hydraulic adjuster pillar 4. As shown, the defoaming device 19 comprises a slow-pitch helix arranged to decelerate the oil flow from the inlet ports 20 downwards through the helix 19 so that defoaming occurs, the defoamed oil then passing through a central tube 21 to the one-way valve 11, air separated from the lubricating oil in the space 18 being drawn through the ports 20 into the reservoir space 12 and passes with the oil flow through a passage 14 and ducts 15, 16 to a rocker arm pivot bearing 9 where air can leave the bearing through a duct 22, oil leaving this duct 22 serving to lubricate the cam track. The hydraulic adjuster pillar 4 provides zero-lash for an overhead camshaft I.C. engine valve operating mechanism of the type in which a rocker arm 2 has one end 14 pivotally mounted on the bearing 9 of a plunger 8 extending from the pillar 4, the other end engaging a valve stem 3, and a portion of its upper surface between its ends engaging a cam 1. Alternative defoaming devices located in a similar manner within the adjuster pillar 4 are illustrated in Figs. 2 to 5 (not shown) in which Figs. 2 and 3 illustrate two forms of labyrinth (23 and 26) and Figs. 4 and 5 illustrate steel-wool and paper filters (27 and 28) respectively, two staggered sets of ports (24, 25) being provided such that the lower ports (24) serve for the inflow of lubricating oil and the upper ports (25) for the discharge of separated air.
Patent GB-890671-A (GB)
Title: Steam and spray irons
IPC: D06F75/14
Filed: 1959-12-29
Abstract: 890,671. Steam irons. CASCO PRODUCTS CORPORATION. Dec. 29, 1959, No. 44116/59. Class 138 (2). A hand iron having steaming means comprising a boiler 17, a steam dome 24 and a passageway 25 for conducting steam to ports 28 in the sole-plate, is also provided with means for spraying water on to the work, this means comprising a steam passageway 30 (Fig. 3) from the steam dome 24 to a duct 34, a passageway 31 for water connecting the boiler 17 to the duet 34, and valves 39, 49 for closing the passageways whereby opening of the valves enables steam pressure in the boiler to force water through the passageway 31 to issue from an orifice 36 as a stream of fine droplets of water. Valve stems 37, 46 are operated by a button 59 provided with a groove 64 whereby when the button 59 is depressed against spring action, the steam valve 39 is opened before the water valve 49. Steaming through the sole-plate during water spraying is prevented by engagement of valve 39 with the upper end of passageway 25. Means 72 is provided for limiting the steam flow through passageway 25 to maintain in the boiler a steam pressure sufficient to produce a water spray as soon as the valves 39, 49 are opened. Increased steam pressure in the boiler operates the means 72 in such a way as to permit increased flow of steam. The steam dome 29 incorporates a relief valve (Fig. 4, not shown). Filling of the boiler 17 is effected by releasing locking mechanism 19, 20 and pivoting the handle to the dotted line position. The filling opening 22 has a closure plug 21 and vents 85, 86 permitting rapid release of steam pressure. A cup 80 prevents sudden emission of steam and boiling water, the cup having bottom openings which are closed by steam pressure acting on a disc 83 loosely mounted on a pin 82.
Patent GB-1397169-A (GB)
Title: Phenylpiperazine derivatives process for their preparation and applications thereof
IPC: A61P3/04
Filed: 1973-09-20
Abstract: 1397169 Trifluoromethyl phenyl piperazine derivatives E BOUCHARA 20 Sept 1973 [29 Sept 1972] 44204/73 Heading C2C Novel compounds of Formula (I) in which A denotes: -CH 2 OR<SP>1</SP>, (R<SP>1</SP> being H, C 1-6  alkyl, C 2-6  alkenyl, C 2-6  alkynyl, phenyl- C 1-6  alkyl, acyl or optionally substituted carbamoyl), -COOR<SP>2</SP> (R<SP>2</SP> being H, C 1-6  alkyl, C 2-6  alkenyl, C 2-6  alkynyl or phenyl-C 1-6  alkyl), or -CONR<SP>3</SP>R<SP>4</SP> (R<SP>3</SP> and R<SP>4</SP> denoting; independently H, C 1-6  alkyl, C 5-7  cycloalkyl or NR<SP>3</SP>R<SP>4</SP> denoting a 5-7 membered heterocyclic ring optionally carrying as a second heteroatom an oxygen or nitrogen atom, which latter may carry a C 1-6  alkyl or m-trifluoromethylphenyl radical), and their salts with non-toxic acids and bases, may be obtained by reaction of 1-mtrifluoromethylphenyl-piperazine with a C 1-6  alkyl methacrylate to form a compound in which A is -COO C 1-6  alkyl, and optionally converting this ester to other compounds of Formula I by conventional methods. Pharmaceutical compositions having analgesic, anti-inflammatory or anorectic properties, comprise compounds of Formula I together with a therapeutically acceptable vehicle in forms suitable for oral, transcutaneous, rectal or topical application.
Patent GB-1213895-A (GB)
Title: Rotary gas switch, in particular for water heaters
IPC: F23Q9/12
Filed: 1968-09-18
Abstract: 1,213,895. Valves. JOH VAILLANT K.G. 18 Sept., 1968 [25 Nov., 1967], No. 44354/68. Heading F2V. [Also in Division F4] A rotary gas switch, in particular for water heaters, is characterized in that a rotary handle 9 is provided with a disc cam 10 and is also provided with a control cam 14, the disc cam cooperating with an inclined surface 13 to displace a cam support 6 sufficiently for the opening of an ignition valve 2. The ignition valve 2 is coaxial with a main gas valve 3 and they are lifted in succession by a shank 4. The shank 4 terminates in the cam support 6. In operation the handle 9 is turned to an " ignition " position (Fig. 4). If the pilot ignition ignites, a current through a thermocouple causes the depression of a spindle 19 and allows a projection 15 on the control cam 6 to be locked by a three-armed bolt lever 16. This result is necessary prior to opening the main valve 3, since the control cam 6 is locked whilst the handle 9 is turned back towards the" off ''position to a " main " position, the cam 14 axially forcing the control cam to open the main valve 3. A spring 8 counteracts the rotation as well as the axial displacement of the control cam 6. If the projection 15 does not lock because the pilot has failed to ignite, the control cam simply returns to the " off" position. In an embodiment a thermal sensing element is connected to an expansion vessel (25) which causes the projection (15) to be released when the desired temperature is reached.
Patent GB-1089687-A (GB)
Title: Improvements in rotary scythe lawn mowers
IPC: A01D69/02
Filed: 1966-10-05
Abstract: A rotary-scythe mower, of the kind having a motor driving a vertical shaft on which are mounted an air-impeller and a cutter within a housing under which the impeller produces an air-pressure sufficient to support the mower in operation, is characterized in that the motor is a series-wound electric motor which drives the shaft through gearing so that the speed of the cutter is less than that of the motor.  In one form, the motor is mounted fixedly on the mower-housing and drives the cutter-shaft through a belt-drive, the cutter-shaft being mounted in fixed bearings in the housing and the cutting height being adjustable by the insertion or removal of shims above the cutter.  In another form, the cutter, impeller and motor are mounted together on a top plate which can be rotated about the axis of the mower-housing to engage stepped cams between the plate and housing, whereby the cutter-height may be varied.
Patent GB-1479386-A (GB)
Title: Bearing pads for example for supporting bridges
IPC: E01D19/04
Filed: 1975-10-28
Abstract: 1479386 Bearing pads; elastomeric springs FELT PRODUCTS MFG CO 28 Oct 1975 [29 Oct 1974] 44389/75 Headings F2A and F2S A bearing pad comprises (1) an elastomeric main body of durometer hardness between 40 and 65, (2) a non-metallic intermediate layer, less compressible than the main body and bonded thereto, and (3) a fluorohydrocarbon polymer bearing layer bonded to the intermediate layer, the main body containing at least one shim plate having one of its surfaces lying adjacent to the intermediate layer, e.g. directly against the layer or spaced from it by a distance of up to half the thickness of the intermediate layer. In Fig. 1, a bridge bearing pad assembly comprises main body 30 (chloroprene) containing steel shims 32A-32D, intermediate harder chloroprene layer 36 and PTFE bearing layer 38 slidably engaging with slide plate assembly 10 comprising stainless steel slide plate 22 secured to mounting plate 20 by elastomeric cushion 24. Intermediate layer 36 may alternatively be made of leather, epoxy resin or rubber-bonded asbestos sheet. In Figs. 4 and 5, L is an inclined load bearing bridge member, S a support, while P<SP>1</SP>, P<SP>2</SP> and B<SP>1</SP>, B<SP>2</SP> are slide plate and bearing pad assemblies respectively.
Patent GB-899337-A (GB)
Title: A tool for placing and removing circlips
IPC: B25B27/20
Filed: 1960-12-28
Abstract: 899,337. Tools for holding spring rings. BLACKBURN ENGINES Ltd., and BAKER, S. D. Dec. 28, 1960, No. 44452/60. Class 61. A tool for placing and removing circlips in bores comprises a body 1, 2 slotted at one end to receive a pair of pivoted, spring loaded jaws 4, 5 which, where they project beyond the end of the body, are cranked, their exposed ends 4<SP>1</SP>, 5<SP>1</SP> being shaped to engage in the holes in the ends of a circlip, and a spring-loaded plunger 9 movable in the body to be effective on the internal ends of the jaw members to rock them against their spring loading and to bring their exposed ends nearer together. The jaws are loaded by a resilient ring 8 located in grooves in the body. A ball 14 is interposed between the internal ends of the jaws and the end of the plunger. Displacement of the plunger 9 against the action of its loading spring 10 effects rocking of the jaws. The movement of the plunger is limited by a pin 13 extending transversely therethrough and working in the slot in which the jaws are located.
Patent GB-1508528-A (GB)
Title: Apparatus for plucking hair from skin
IPC: A45D26/00
Filed: 1976-10-26
Abstract: 1508528 Hair plucking apparatus Y DAAR and S YAHAV 26 Oct 1976 [9 Dec 1975 12 Aug 1976] 44537/76 Heading A5R Hair plucking apparatus consists of a housing containing a motor which drives a cam 18 to reciprocate longitudinally 'two bars 24, 26 and to rotate via gearing 42, 44, 46 a pair of sleeves 48, 50, springs 52, 53 being connected between the bars and sleeves so that they are alternately stretched and contraded whilst rotating, the springs when applied to the skin through apertures in the housing gripping hairs during spring contraction and plucking them out by spring rotation. In a modification the springs are connected to the bars by means of bail bearings so that no rotation is transmitted to the bars. In a second embodiment, Fig. 8, the springs 130 are rotated by a motor 112 via respective gearing 116, 118, clutch 145 and a sleeve 134 rotatably held in the housing by ball bearings 142. Each spring is connected to a bar 126 co - axial with a rod 136 housed within sleeve 134. The rods and hence the bars, are reciprocated by a respective crankcase member 186 rigid therewith which has a vertical slot 184 engaged by a pin 182 on a disc 180 rotated by worm gearing from the shaft 120 of gear wheel 118. The members 122, 144 of the clutch are held together by the tension of a spring acting through a double arm lever 148, one arm 154 engaging in a slot 160 in an extension of clutch member 122. The other lever arm 150 carries a cam roller 152 engageable with the periphery of disc 180 and lifted when preipheral portion 188 is reached to pivot the lever and force clutch member 122 away from member 144 to disengage the clutch. At the same time a brake pad on an extension of arm 154 engages the periphery of member 144 to brake it. Therefore spring rotation is discontinued once during each rotation of disc 180.
Patent GB-919905-A (GB)
Title: Improvements in or relating to picks for coal-cutting machines
Inventor: ELLIOTT BERNARD
IPC: E21C35/18
Filed: 1960-12-29
Abstract: 919,905. Mineral -mining equipment. HIGHER SPEED METALS Ltd. Sept. 29, 1961 [Dec. 29, 1960], No. 44549/60. Class 68 (1.). A hard cutting tip having a base structure such as described in Specification 885,807 but with modified cutting and back faces is mounted in the leading portion of the head of a forwardly cranked mineral-mining cutter pick. The inwardly and upwardly convergent sides of the lip now merge into a central raised rib 20 of rectangular transverse cross-section extending the length of the cutting and back faces of the lip.
Patent GB-1490386-A (GB)
Title: Method for anionic polymerization and extrusion of lactam
IPC: B29C48/395
Filed: 1975-10-29
Abstract: 1490386 Polymerizing lactams during extrusion ATO CHIMIE 29 Oct 1975 [12 Nov 1974] 44642/75 Heading B5A In the anionic polymerization of a lactam material, mixed with catalyst and activator, during extrusion by a screw 3, variations in the degree of polymerization causing flow fluctuations in the screw output, are avoided by delivering the output from the screw 3 to a die 7 by means of metering pump 6, e.g. a gear pump having means for driving it at a constant speed. The extrudate may comprise a rod, or profile 8, or a wire, or a sheath. Conventional catalysts and actuators are specified, and the lactam comprises 6 to 12 carbon atoms, preferably caprolactam, oenantholactam, and dodecalactam, used alone or in combination.
Patent GB-1299766-A (GB)
Title: Improvements in or relating to electric wire connectors
Inventor: NAGANO HIDEO
IPC: H01R4/48
Filed: 1970-09-18
Abstract: 1299766 Electric couplings H NAGANO 18 Sept 1970 [24 Sept 1969] 44692/70 Heading H2E An electrical connector, Fig. 5 comprises an insulating housing having a bottom wall 2 and integrally formed clamps 13, 14 located in a hollow in the housing. The clamps 13, 14 clamp spring means comprising two half retaining springs 5L, 5R and two half clamping springs 6L, 6R. A conductor is passed through an aperture in one side of the housing and laid on a conductive plate 3 on the bottom wall and one cam 7R of a pair of cams is rotated to urge one half of the spring means against the conductor. A second conductor is passed through an aperture in the opposite side of the housing the second cam 7L is rotated to urge the other half of the spring means against this conductor, the conductors being interconnected via the plate 3. The retaining springs 5L, 5R may be joined to form one retaining spring, as may be the clamping springs 6L, 6R. The connector may alternatively have only one cam end and one half retaining and clamping springs the opposite end of the plate 3 being extended as a terminal to which conductors may be soldered or wire-wrapped. A plurality of these connectors may be joined together and they may all be connected to earth by a plug having a plurality of pin contacts to fit in the connectors, all the contacts being connected to a common conductor connected to earth. In an alternative embodiment, Fig. 13, the spring means comprises two retaining springs 5, 5<SP>1</SP>, one clamping spring 6 and two reinforcing springs 15, 15<SP>1</SP>. In the bottom wall 2 of the housing a recess 16 is formed and this is bridged by a plate spring 19 which supports a stem 21 which passes through a hole 20 in the conductive plate 3 and carries an auxiliary conducting plate 22 which abuts the clamping spring 6. When a conductor is inserted through one of the apertures 11, 12 and the corresponding cam 7R, 7L is rotated, the spring means forces the auxiliary plate 22 down so that the inserted conductor is clamped between the plates 3, 22, the projection 23 on the housing allowing the two halves of the spring means to operate independently. A plurality of these connectors may be joined together, and the cams each may be formed with a hole in its end for the insertion of the end of a screwdriver to act as a lever. Reference has been directed by the Comptroller to Specification 1,214,401.
Patent GB-1481338-A (GB)
Title: Method and apparatus for obtaining a corrected count of particles
IPC: G01N15/12
Filed: 1974-10-16
Abstract: 1481338 Counting particles COULTER ELECTRONICS Ltd 16 Oct 1974 [17 Oct 1973 2 July 1974] 44826/74 Heading G4D In a particle counter of the kind in which electric pulses representing particles are counted for a predetermined period, that period is variable and dependent upon the characteristics of the particle pulses whereby to correct the count for coincidence error. The particle detector 12 delivers pulses to a threshold circuit 16 which delivers square pulses to one input of an AND gate 18. A timer 22 of the pulse counting variety controls the other input of gate 18 so that a counter 24 accumulates pulses for a determined period. By a line 17 the timer 22 is inhibited (i.e. the period extended) for the time during which the pulse signal at 14 exceeds the threshold. Using a trailing edge detector 26 and a monostable 28 the inhibiting pulses are adjustably extended. In a modification (Fig. 2, not shown) only particle pulses between two thresholds are counted whereas all pulses above the lower threshold are used to modify the counting period. In another modification (Fig. 4, not shown) the timing period is dependent upon the rate at which particle pulses appear as well as upon their duration.
Patent GB-1023697-A (GB)
Title: Improvements in or relating to ignition systems for internal combustion engines
Inventor: ARCHER JOHN
IPC: F02P3/04
Filed: 1962-11-28
Abstract: 1,023,697. Ignition systems. MULLARD Ltd. Nov. 28, 1962, No. 45069/62. Heading F1B. In a transistorized ignition system means are provided for generating a rectangular or approximately rectangular waveform by utilizing the make and break action of the contact breaker, which waveform has an AC component and a DC component, and for supplying the AC component of the waveform without its DC component to the emitter base section of the transistor Tl as intermittent drive so as to cause current to rise and fall periodically in the transistor and coil, the AC component retaining the edges of the rectangular waveform with substantially unaltered timing and substantially undiminished steepness and the arrangement being such that in the absence of motion of the contact breaker the AC component is zero and the emitter collector current of the transistor is restricted. A standing bias is applied to turn the transistor off when the engine is stationary with the ignition circuit switched on. As shown the means for supplying an AC component to the transistor comprises a capacitative AC coupling between the contact breaker end of a resistor and the base of the transistor. The resistor R3 may be omitted or may be connected between Cl and a direct base-R2 junction. Terminal t5 may be connected to the emitter of Tl, in which case T1 is virtually turned off (when the engine is stationary) without the need for a separate bias supply rail. In a modification the AC component is supplied through one or more transistor buffer stages. A transformer AC coupling may be employed. In this case the transformer primary can replace R1 while C1 is replaced by its secondary, the latter being connected between R3 and the positive supply rail.
Patent GB-1030935-A (GB)
Title: Hot top
IPC: B22D7/10
Filed: 1964-11-05
Abstract: 1,030,935. Ingot moulds. M. D. LABATE. Nov. 5, 1964, No. 45110/64. Heading B3F. A consumable hot top comprises four identical slabs 10-13, Figs. 1 and 2 (not shown), each having rods 15 disposed therein and extending at one edge for co-operation with marginal openings 14 in the adjacent edge of another slab. Handling hooks 18 are secured to the top rod 15 and a strap 20, partially closing a notch 19 at the bottom of each slab, engages the freezing metal and prevents the hot top from floating upwardly. Recesses 17 on the inner faces of the slabs form lugs by which a crane may grip the ingot. Reference has been directed by the Comptroller to Specification 863,966.
Patent GB-1330503-A (GB)
Title: Pulse generating apparatus
IPC: H03K3/537
Filed: 1970-09-24
Abstract: 1330503 Ignition systems BENDIX CORP 24 Sept 1970 [25 Sept 1969] 45477/70 Heading F1B [Also in Divisions H2 and H3] A pulse generator comprises a supplementary condenser 31 of smaller capacity than a main condenser 20 and a first or trigger gap 36 having a break down potential less than that of a second or control gap 25, the main and supplementary condensers are charged in parallel from input terminals from a unidirectional voltage source 15, 16, 17 and 19 until the first gap 36 breaks down so as to connect the condensers 20, 31 in series across the second gap 25 which then breaks down and output terminals are thereby connected through the second one 25 only of the gaps across the main condenser 20. The pulse generator is shown supplying pulses to an ignition spark gap 29 of a jet or gas turbine engine. A switch S selects in a position A high level output for starting and in a position B a lower level output for continuous operation. In the lower level output position B source 13, such as A.C. or interrupted D. C. is supplied via RF filter 14, transformer 11 and voltage doubling circuit 15, 16, 17, 19, 22 to charge storage condensers 20 and 31. When the voltage across condenser 31 reaches the breakdown voltage of trigger gap 36, the gap 36 conducts so as to connect the condensers 20 and 31 in series with the control gap 25 which also conducts. The output is applied to the ignition spark gap 29. With the switch S in position A a higher voltage is applied from a transformer 11' and voltage doubling circuit 15', 16', 17', 19', 22 to charge condenser 20. When the voltage across the condenser 20 reaches the breakdown voltage of the control gap 25 the condenser 20 is discharged via the control gap 25 and ignitor gap 29. The diodes 16, 19 are protected against damage by limiting resistors 21, 22. The main condenser 20 may be charged by means other than the voltage doubling system such as through a rectifier from the secondary of a step-up transformer. Specifications 1330504 and 1330505 are referred to. (For figure see next page)
Patent GB-1517666-A (GB)
Title: Consumable guide electroslag welding
IPC: B23K25/00
Filed: 1976-11-02
Abstract: 1517666 Welded rail joints BOC Ltd 2 Nov 1976 [14 Nov 1975] 45577/76 Heading EIG [Also in Division B3] In consumable guide tube electro-slag welding, e.g. of railway rails, one or more receptacles (e.g. steel) are secured to the exterior of the guide tube or tubes intermediate the ends thereof and additives (e.g. Fe Mn) placed and sealed in said receptacle(s) are released, by welding heat, into the weld metal at a predetermined stage or stages of the welding, e.g. to increase weld metal hardness at the rail head. As shown, three guide tubes I (e.g. of 0.08 - 0.13C, 0.30 - 0.60 Mn) are spot or tack welded to a retaining plate 2. The outer two tubes are splayed to accommodate rail cross section. Mild steel capsules 3 are spot or tack welded to the two outer tubes so that bases thereof are 12-15 mm above the top 4 of the rail head so that release of contained FeMn into the melt, by reflected heat, commences when the slag pool is 6-8 mm below the capsules. Melt is retained by four watercooled copper shoe quarters clamped together to conform to the rail cross section. Flux may be coated on the guide tube surfaces or added by a metering orifice or by hand.