baber/WOPTO huggingface dataset:
Patent GB-462040-A (GB)
Title: Improvements in ball thrust bearings
IPC: F16C19/10
Filed: 1935-05-21
Abstract: 462,040. Ball bearings. WARMAN, C. H. May 21, 1935, No. 14785. Void. Convention date, June 7, 1934. [Class 12 (i)] A bearing permitting universal movement, and applicable for crushing machines &c., comprises a member 1, Fig. 1, with a convex spherical surface and a member 2 with a concave spherical surface, with balls 6 interposed between the surfaces and engaging races 4, 7. The balls are carried in a cage 9 and are inserted alternately from opposite sides of the cage. A packing ring 13 carried by one member engages a spherical surface on the other member. Lubricant is supplied by passages 18, 19 and 20. In a modification, Fig. 2, the convex surface is formed by a ball 4a, which is normally stationary, but can turn in its seating 23 should the balls 6 jam. The balls are arranged in two rows in the cage 9 and engage a race 7. A ring 29, screwing into the member 2, carries a packing ring 27, which engages the exterior of the member 23. Lubricant is supplied by a pipe 31. The two spherical surfaces of the bearing members may be eccentric to one another, in order to secure self-centring of the cage 9, or in the case of a high-speed bearing.
Patent GB-1420936-A (GB)
Title: Gain control arrangements
IPC: H04N5/265
Filed: 1972-03-29
Abstract: 1420936 Gain control; transistor amplifying circuits PYE Ltd 14 Feb 1973 [29 March 1972] 14809/72 Headings H3T H4R and H4J In a gain control circuit, particularly for video signals, the input signal is fed through a phase splitter circuit 5 to provide two signals 10, 11 in antiphase which are fed to similar gain controlled differential amplifiers 6, 7 the outputs from which are fed respectively to the inverting and non-inverting inputs of a differential amplifier 8. In the resulting output, 2, distortion due to non-linearity of the gain controlling amplifiers 6, 7, is cancelled. In the preferred arrangement the gain controlled amplifiers 6, 7 comprise emitter coupled pairs (T2, T3), Fig. 2 (not shown), with the signal fed into the common emitter circuit and taken out of one collector circuit, in which the division of current between the two transistors is controlled by a control voltage applied to the bases of the transistors. The phase splitter comprises an emitter coupled pair of transistors T5, T6, Fig. 3 (not shown), with low impedance output circuits (T7, T8) and negative feedback to stabilize the gain. The control voltage to vary the gain of the circuit, by varying the current division in the emitter coupled pairs of amplifiers 6, 7, is preferably fed via a non-linear circuit, Fig. 6a, in which the non-linear current voltage relation of diodes D1 and D2 compensates for the non-linear gain control characteristic of the amplifiers 6 and 7. Alternative non-linear circuits are described, Figs. 6b, 6c, 6d, 6e (not shown). Two similar circuits may be combined using a common differential amplifier (108), Fig. 8 (not shown), and with the amplifiers connected to provide complementary gain control characteristics to give a " fade over " characteristic from one input circuit to the other.
Patent GB-1017100-A (GB)
Title: Improvements in or relating to doors
Inventor: LUNDMARK KJELL
IPC: E06B3/82
Filed: 1964-04-10
Abstract: 1,017,100. Door bodies. SVENSKA CELLULOSA A.B. April 10, 1964, No. 14887/64. Heading EIJ. In a door body consisting of wooden lamellate 11 fixed to each other and surrounded by a wooden frame 2 and covered on each side by adhered fibre board panels 3, 4 covered in turn by adhered panels 5, 6 of plastic, and a U-section border 7 of plastic covering the edge portions of the frame 2, the two limits of the cover 7 cover the peripheral portions of the fibre boards 3, 4, and limbs and plastic panels 5, 6, meeting over the frame 2 and completely cover the fibre boards. Each limb of the edge cover 7 has a projection 8 or 9 which extends through a hole in the wood fibre sheet 3 or 4 and each limb overlaps the plastic panels 5 or 6 to press the peripheral edge portion thereof over the wooden frame 2 against the fibre board immediately underneath. The joint between the plastic sheets 5, 6 and the limbs of the cover strip 7 may be welded. In a modification, in place of projections, 8, 9, the strip 7 is provided with an intermediately disposed barbed projection received into a recess in the wooden frame 2, plastic bump absorbing fillet may be provided on the cover strip 7 or on the door jamb.
Patent GB-434941-A (GB)
Title: Improvements relating to ships' side-scuttles
IPC: B63B19/00
Filed: 1935-05-22
Abstract: 434,941. Cabin lights. PATE, G., c/o Carron Co., Carron, Stirlingshire, and CHRISTIE, R., Nazeingbury, Nazeing, Essex. May 22, 1935, No. 14910. [Class 113 (i)] In ships' side scuttles instead of employing the usual flanged structure to bolt the scuttle to the ship's plating the shell frame includes a tube 1 which spigots into the light aperture in the skin plating 3 and is welded thereto either outside at 4 or inside at 5 or in both places.
Patent GB-1126424-A (GB)
Title: A cut-out arrangement for a clutch or a driving machine associated with a clutch
IPC: F16D48/06
Filed: 1967-03-31
Abstract: 1,126,424. Clutch control; friction clutches. MASCHINENFABRIK STROMAG G.m.b.H. 31 March, 1967 [6 April, 1966], No. 14915/67. Headings F2C and F2L. [Also in Division H2] An overload cut-out arrangement disengaging a clutch, or stopping a driving machine associated with a clutch, on occurrence of slip between the driving and driven clutch members comprises a magnetic pick-off connected to cut-out relays through the intermediary of a silicon controlled rectifier. As shown, a soft iron core of a magnetic pick-off 6 projects slightly from the periphery of the coil supporting member of an electromagnetic multiplate clutch for co-operation with equispaced peripheral fingers of an outer clutch member. The pick-off 6 acts through a slip ring on a silicon controlled rectifier 7 controlling a relay 8. A relay 3 having a contact 5 in the clutch energizing circuit is energized through parallel paths one of which includes a push-button starter switch 1 and the other of which a contact 9 of the relay 8 and a holding contact ,4. In operation of the clutch, the push-button 1 is depressed, and kept so until the clutch rotates synchronously, to (i) open a-switch 2 in the relay 8/rectifier 7 circuit to prevent clutch disengagement during starting, and (ii) energize the relay 3 to close the contact 5 for clutch engagement and to close the holding contact 4. On clutch synchronism the button 1 is released for the contact 2 to complete and prepare the relay 8/rectifier 7 circuit. On clutch slip the contact 9 is opened, via the pick-off 6, rectifier 7 and relay 8, thereby breaking the holding circuit of the relay 3 to open the contacts 4, 5 and disengage the clutch. In a non-electromagnetically operated clutch the soft iron core of the pick-up is replaced by a permanent magnet core.
Patent GB-1355079-A (GB)
Title: Axial piston pump or motor
IPC: F01B3/00
Filed: 1971-05-14
Abstract: 1355079 Reciprocating pumps and motors CESSNA AIRCRAFT CO 14 May 1971 [18 May 1970] 14918/71 Heading F1A In a swash-plate pump or motor comprising a rotary cylinder block 20 with pistons 26 engaging a swash-plate 12, a bearing plate 43 is interposed between the piston slippers 41 and the swash-plate surface and rotates with the slippers, the plate 43 being radially located by partspherical members 55, 56 between the plate 43 and the drive-shaft 15. In the motor embodiment shown, a second set of pistons 25 engage a second swash-plate member 32 via a bearing plate 29 and rollers 31. Liquid flow to and from cylinders 24 is via piston, slipper and bearing plate passages 38, 42, 44, the bearing plate passages registering sequentially with inlet and outlet ports in swash-plate 12. Lands surrounding the bearing plate passage ports 44 constitute a hydrostatic bearing supporting the bearing plate on the swash-plate. A spider plate 50 holds slippers 41 in contact with bearing plate 43 and is connected to plate 43 by projections 53 engaging slots 54 in plate 43. A spring 57 acts between block retainer 37 and member 56. In Fig. 4 (not shown), a pump has a single set of pistons in a block with cylinder ports registering with a ported valve face, the spider plate being coupled to the bearing plate by rivets.
Patent GB-805577-A (GB)
Title: Improvements relating to the construction of underframes for self-supporting car bodies
IPC: B62D21/00
Filed: 1957-05-10
Abstract: 805,577. Vehicle bodies. DAIMLERBENZ A. G. May 10, 1957 [May 12, 1956], No. 14997/57. Class 108(1) A self-supporting vehicle body has a floor 1 to the side edges of which are secured stiffeners 3, 4 and to the centre, a tunnel 2 which is secured at its forward end to the upturned panel 5. The panel 5 is turned rearwardly to form an apron 11 and then forwardly at 13 and is secured by the flange 14 to the panel 5 to form a transverse hollow member 15 which is extended at 16, 17 (see Fig. 3) down the forward sides of the door cutouts to be secured to the stiffeners 3, 4. A further U-shaped structure 18 is secured between the apron 11 and the tunnel 2. Further stiffeners 6, 8 are secured between the floor 1 and the front panel 5.
Patent GB-774047-A (GB)
Title: Improvements in and relating to instruments responsive to force ratios
IPC: G01L11/00
Filed: 1955-05-24
Abstract: 774,047. Electric measuring systems. MINNEAPOLIS - HONEYWELL REGULATOR CO. May 24, 1955 [May 25, 1954], No. 15002/55. Class 40 (1). A force ratio measuring instrument, used, for example to measure the ratio between the exhaust pressure P1 of a jet engine and the inlet pressure P2, comprises a rotatably mounted or rotatably adjustable arm 10, a detector beam 15 pivoted by a reed 16 to a block 17 attached to the arm 10, a right-angle bracket 20 pivoted at 21 to the detector beam 15, flexible strips 30, 31 extending from the bracket 20 and attached to levers 35, 45 pivoted on knife edges 36, 46 and movable by bellows 40, 50 applying forces depending upon P1-P2 and P2 respectively, and a differential transformer 54 comprising a core 56 attached to the beam 15, which transformer senses the position of the beam 15 relative to the arm 10 and sends a correcting signal to a motor 60 which drives the arm 10 back into alignment with the beam 15 as indicated by a pointer 65. In operation the beam and arm are aligned at a predetermined ratio angle alpha. Any alteration of this ratio varies the position of the beam relative to the arm 10 and causes a signal to be sent from the transformer 54 to the motor 60 to re-align the arm 10 with the beam 15 and indicate the new ratio by a pointer 70 on a scale 72. In a modification the arm 10 is adjustably fixed to the frame 13, the motor 60, the gear 61 and the motor 68 operating a remote reading indicator being eliminated and the transformer 54 being used to actuate a pressure control mechanism. A potentiometer may be substituted for or provided in addition to the motor 68, the potentiometer output being amplified and used to control the engine throttle position &c. A capacitor type pick-off or a plain electrical contact operates a relay and a reversible motor may be used instead of a transformer 54.
Patent GB-1253281-A (GB)
Title: Functional fluid compositions
IPC: C10N40/12
Filed: 1969-03-21
Abstract: 1,253,281. Hydraulic fluids. MONSANTO CO. 21 March, 1969 [22 March, 1968], No. 15020/69. Heading C5F. An hydraulic fluid comprises a major amount of a functional fluid base stock and 0À005-15 wt. per cent of a perfluoro alkylene ethercontaining compound of the formula wherein R is alkylene, alkoxyalkylene or perfluoroalkylene, R 1  and R 2  are each fluoro or trifluoromethyl provided that not more than one R 1  represents trifluoromethyl and provided that not more than one R 2  represents trifluoromethyl, R 3  is fluoro or trifluoromethyl, R 4  is hydrogen or halogen provided that when R is alkylene or alkoxylalkylene R 4  is hydrogen, R 5  is perfluoroalkylene having at least two carbon atoms and R 6  is selected from hydrogen, trifluoromethyl, perfluoroethyl, wherein R 7  is selected from hydroxyl, the residue of an ester-forming compound and the residue of an amide-forming compound, R 8  is alkyl or alkoxyalkyl and R 9  is hydrogen or a residue of an alcohol-reacting compound, q is 1 or 2 and p is a whole number having a value of at least 1 provided that when R 7  is hydroxyl q is 1 and provided that when R 9  is hydrogen p is 1, a is zero or 1 and n and m are each zero or a whole number up to 50, provided that the perfluoro alkylene ether-containing compound contains at least one perfluoroalkylene unit containing from two or three carbon atoms and further provided that the perfluoro alkylene ethercontaining compound contains at least 50% by weight of perfluoro alkylene unit. Suitable base stocks are hydrocarbon-, halohydrocarbon- and ether-hydrocarbon-phosphorus esters, thioesters amides and silicates, alkyl thiophenes, mixtures of these base stocks, and blends of the phosphorus esters or amides with halogenated compounds. Extensive lists of suitable base stocks and perfluoro alkylene ether-containing compounds are given; those used in the examples are CF 3 CF 2 -CF 2 -O-CFHCF 3  and dibutylphenyl phosphate, tetraisopropyl silicate N - methyl - N - butyl - N<SP>1</SP> - methyl - N<SP>1</SP> - butylphenylphosphorodiamidate, and a mixture of hydrocarbon oil, o-xenyl diphenylphosphate and m-dibromobenzene. The base stocks can contain viscosity index improvers and other additives such as aromatic mercaptans and epoxidized hydrocarbons.
Patent GB-1381912-A (GB)
Title: Acoustic wave devices
IPC: H03H9/76
Filed: 1972-03-30
Abstract: 1381912 Surface wave filters STANDARD TELEPHONES & CABLES Ltd 30 March 1972 15068/72 Heading H3U An acoustic surface wave filter having an input transducer 1, with interdigitated electrodes, and a first output transducer 3, is provided with a linked multi-strip coupler 6 which couples part of the input signal to a second output transducer 4. Transducers 3 and 4 have different pass bands both within the passband of transducer 1, for example they may respectively pass sound and video T.V. signals. Waves emitted by transducer 1 away from coupler 6 are absorbed, or alternatively the transducer is made unidirectional by including additional couplers. The propagating medium is piezoelectric material, which may be supported by a non-piezo-electric material. In a second embodiment, Fig. 3 (not shown), the input transducer emits waves in both directions and further couplers are provided to separate out more than two passbands.
Patent GB-150111-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/12
Filed: 1919-06-16
Abstract: 150,111. Tucker & Co., J. H., and Tucker, J. B. June 16, 1919. Switches, quick-break; cases.-A switch comprises a two-part casing, with inlets and outlets for the leads at its ends, within which an insulating block a is secured carrying two parallel plates b, e to which the leads are connected and a spring plate contact d in connexion with the plate b, which may be brought into and out of engagement with the contact plate e by means. of a tumbler c passing through a slot in the casing and pivoted.in a bridge depending from the plate b. The switch is shown in the closed position; by turning over the tumbler, the spring is. pressed more closely on to the contact plate until the dead-centre is passed, whereupon the spring is free to rise with a rapid movement.
Patent GB-503579-A (GB)
Title: Improvements in devices for protecting motor cars from theft
IPC: B60R25/04
Filed: 1938-05-20
Abstract: 503,579. Preventing unauthorized use. CHANDOU, J. D. May 20, 1938, No. 16128. Convention date, Feb. 17. [Class 7 (ii)] The lead to the primary of the induction coil 3 of an engine M is covered by a metal sheath 13 which is attached to a case 8 surrounding the induction coil so as to prevent the unauthorized completion of the engine ignition circuit by the insertion of a lead such as 7. The metal sheath is preferably flexible and it is sutliciently strong to prevent severing with a cutting tool such as pliers.
Patent GB-587785-A (GB)
Title: Improvements in or relating to tube drawing apparatus
IPC: B21C3/16
Filed: 1944-08-09
Abstract: 587,785. Drawing. STEVENS, A. H. (Bridgeport Brass Co.). Aug. 9, 1944, No. 15146. [Class 83 (iv)] Mandrels.-A tube-drawing mandrel comprises a shank with a forwardly projecting stud which carries a sizing mandrel or sleeve adapted to be displaced longitudinally and also laterally with respect to the axis of the stud. The shank 17, Fig. 3, is in screw-threaded engagement at the rear end with a rod 38 which is guided and held at the rear end of the drawbench and at the front end with a stud 26 formed with a head 27 and an abutment flange 28. Mounted on the stud is a sleeve 32 normally pressed against the flange 28 by a spring 35. The bore of the sleeve is greater than the diameter of the stud so that the sleeve may move laterally to a limited extent when tube sections of non-uniform thickness are encountered. In a modified form, Fig. 12, an enlarged portion 115 at the forward end of the shank is hollowed out to form a skirt 117 extending over the rear end of the sleeve to prevent the entry of tube material behind the sleeve. An axial bore 121 extends through the shank and serves to supply lubricant to the interior of the tube by way of passages 125 and 126. In both forms, the front end of the sleeve is tapered, preferably at 45 degrees and the rear edge is rounded. Preferably, the shank and the stud are of heat-treated tool steel and the mandrel sleeve is of cemented tungsten carbide such as the material sold under the Registered Trade Mark " Carboloy."
Patent GB-432383-A (GB)
Title: Improvements relating to guards for guillotines, presses and other reciprocatory machines
IPC: F16P3/00
Filed: 1934-05-22
Abstract: 432,383. Machinery guards. HACKETT, H., 42, Weoley Park Road, Selly Oak, and WHITTAKER, A., 58, Bunbury Road, Northfield, both in Birmingham. May 22, 1934, No. 15219. [Class 80 (iv)] Reciprocatory machines such as presses and guillotines having repeater devices and a guard of the forward-andback swinging type are fitted with a device whereby, when the repeater is put into operation, the guard is held in forward position by a catch. A notched lever e is pivoted to a bracket d and is connected by a Bowden transmission h with the repeater control. When the latter is operated the lever e is raised so that the notch f engages a projection g on one of the sides b of the guard, which is thus held in forward position. Instead of Bowden transmission electrical means or a mechanical linkage may be used.
Patent GB-1086414-A (GB)
Title: Printed circuit panel assembly
Inventor: HEATH CLARENCE WILLIANS
IPC: H01R12/71
Filed: 1965-04-09
Abstract: 1,086,414. Lampholders. CARR FASTENER CO. Ltd. March 1, 1966 [April 9, 1965], No. 15222/65. Heading H2E. In a multiple lampholder for mounting on a vehicle dashboard, socket contacts 2a-2h and centre contacts 9 are connected to circuitry a printed on one face of a panel 1, and contact pins 10, also connected to the circuitry a, extend from the opposite face of the panel. Each socket contact is formed from sheet metal with a thread to receive a screw-based lamp and legs (5) (Fig. 4, not shown). The latter are snapfitted into slots in the panel by means of lugs (6), and one of them is then soldered to the printed circuitry.
Patent GB-782708-A (GB)
Title: Improvements in or relating to heat-insulating material and articles
IPC: A41D31/02
Filed: 1955-05-27
Abstract: 782,708. Laminated materials. SCHLEICH, F. May 27, 1955 [June 4, 1954], No. 15298/55. Class 140. Heat-insulating materials and articles comprise a pliable sheet material backed by a heatinsulating layer which consists of a plurality of thicknesses of a cellular, foamed, resilient material superposed loosely on one another and connected to one another only at spaced intervals, e.g. by stitching, so as to form air pockets between the thicknesses of the foamed material. As shown, a top fabric 1 and lining material 3, backed with layers of cellular, foamed, resilient material 4, 5 of the same or different porosity, are connected by quilting stitches 6. A layer of foamed plastic material with coarser pores may be interposed between layers 4 and 5. The layers 4, 5 and, if present, the intervening layer, may be quilted together by themselves, without the fabrics 1 and 3, to form a lining which may be secured to a garment by stitching, buttoning, slide fasteners or press-studs. The pliable sheet material may be fabric, plastic sheeting, or fabrics impregnated or coated with plasticized polyvinyl chloride. The cellular, foamed, resilient material may be sponge rubber or foamed polyurethane. Layers of filter paper, heat-reflecting metal foil or metallized fabric may be inserted between the other layers, while the top fabric may be metallized or coated with metal foil.
Patent GB-617159-A (GB)
Title: Latch operating mechanisms for dumping conveyances with drop bottom doors
IPC: B61D7/16
Filed: 1945-06-15
Abstract: 617,159. Automatic catches. SANFORD INVESTMENT CO. June 15, 1945. No. 15311. Convention date, June 9, 1944. [Class 44] [Also in Group XXXII] . The drop-bottom doors 12 of a hopper wagon are normally held closed by hooks 17 on their rear edges engaging in concave seats 20 in latches 18 fixed at each end of a transverse shaft 19 and supported by springs 23. A pin 26 attached to each latch 18 seats at the lower end of a slot 27 to limit the forward swinging movement of the latch. The latches are released by tripping members 35 raised from the track on passage of the wagon (see Group XXXII) so that their ends 36 engage the face 37 of each latch to release it. The latch is automatically re-engaged when the door is raised by a ramp on the track.
Patent GB-102146-A (GB)
Title: Method for the Production of Ammonium Chloride during the Working of Blast Furnaces.
Inventor: RIEDEL ARTHUR
IPC: C01C1/16
Filed: 1916-10-28
Abstract: 102,146. Riedel, A. Nov. 8, 1915, [Convention date]. Ammonium chloride; ammonium salts. - The production of ammonium chloride in a blast furnace is facilitated by adding to the charge a chloride containing water of hydration, preferably calcium chloride. The hydrated salt retains its water until it reaches the zone of the blast furnace at which ammonia is being produced. In the case of calcium chloride, lime is produced by the decomposition, and this line may be taken into account in calculating the composition of the furnace charge. The ammonium chloride is obtained from the gases by washing with water. The Specification as open to inspection under Sect. 91 (3) (a) states that the coke used in the furnace change may be quenched with a solution of calcium chloride This subject-matter does not appear in the Specification as accepted.
Patent GB-1136451-A (GB)
Title: Improvements in or relating to high-frequency synchrodyne signal receivers
IPC: H04N5/50
Filed: 1966-04-07
Abstract: 1,136,451. Transistor radio receiving circuits. INTERNATIONAL STANDARD ELECTRIC CORP. 7 April, 1966 [9 April, 1965], No. 15564/66. Addition to 1,131,245. Heading H3T.  A synchrodyne radio receiver as in the parent Specification 1,131,245, is provided with a preamplifier between the aerial and the mixer to prevent radiation from the local oscillator. The pre-amplifier comprises three emitterfollowers 3, 7, 8 and may include step-up transformers after each stage. The input stage may include a base bias resistor 11 through which a control voltage may be supplied to vary the input resistance, as described in Specification 1,131,276. Each stage includes a high-valued collector resistance 4 decoupled by a capacitor 5 so that the collector-emitter voltage is very low. The pre-amplifier may be constructed as an integrated circuit.