baber/WOPTO huggingface dataset:
Patent GB-599680-A (GB)
Title: Improvements in or relating to fluid transfer mechanisms
IPC: F02B1/00
Filed: 1944-05-03
Abstract: 599,680. Fluid-actuated valves. THOMPSON PRODUCTS, Inc. May 3, 1944, No. 8360. Convention date, June 12, 1941. [Class 135] [Also in Group XXVI] A valve aggregate for a pump comprises a valve housing having coaxial cylindrical bores and an intermediate annular partition providing a valve seat, a relief valve for said seat having guiding portions at all times in contact with said bores and having an axial passage closed at one end, means providing a byepass valve seat in said passage, a byepass valve for said seat, and resilient means held under compression between said closed end of said passage and said byepass valve to hold said byepass valve closed. A rotary pump of the outwardly-sliding vane type has an annular relief valve 70, Figs. 5 and 6, within which is housed a byepass valve 83 and a seat 82 therefor. The relief valve 70 is held on to its seat by a spring 110 which may be assisted by supercharger pressure acting on the upper side of a resilient diaphragm 103 through a port 123. The spring 110 acts upon the diaphragm 103 through a ball seating 106, and its force is adjustable by a screw 113 engaging a disc 111, rotation of the latter being prevented by a finger 121 engaging a groove 120. The lower part 71 of the relief valve 70 acts as a dashpot to suppress bouncing. Under excessive delivery pressure the relief valve 70 lifts to establish communication between the delivery port 61 and the inlet port 60 by way of passages 86, 85. When the pump is out of action, it can be supplanted by external means, such as an emergency pump, the byepass valve 83 opening to allow passage of fluid from inlet to outlet by way of passages 85, 89, 100 and 86. To enable the pump to be rotated in the opposite direction it is, preferably, capable of being assembled with the valve housing 12 at 180 degrees to the position shown. The diaphragm 103 may be replaced by a bellows. In a modification, Fig. 7, the relief valve and the byepass valve seat are integrally formed by a single member 130, the end of which is closed by a separate disc 137 held against an annular seat 136 by a spring 138.
Patent GB-870313-A (GB)
Title: Coal breaker for underground mining
IPC: E21F13/00
Filed: 1960-03-09
Abstract: 870,313. Coal breakers. OELLRICH, A., [trading as MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN]. March 9, 1960 [March 17, 1959], No. 8366/60. Class 59 In a coal breaker for underground mining comprising a driven breaker roller 4 mounted in a member 3 rockable about an axis 2 relative to a frame 1 and in which air-filled cylinders 5 are pivotably connected between the frame 1 and member 3, the pressure chambers 7, 8 of each cylinder are connected to atmosphere by way of apertures 9, 10 or through corresponding conduit connections, and adjustable throttle valves 11 are provided at these apertures or connections so as to produce an elastic oscillation damping effect. Filters 12 are disposed in front of the throttle valves. A box 13 for supplementary weights 14 is provided so that the pressure of the breaker roller can be increased.
Patent GB-1503064-A (GB)
Title: Portable power driven band saw
IPC: B23D55/10
Filed: 1976-03-03
Abstract: 1503064 Sawing ROCKWELL INTERNATIONAL CORP 3 March 1976 [28 April 1975] 08438/76 Heading B5L A portable power-driven band saw has a unitary frame 20 supporting drive motor 24, handle 26, drive and idler pulleys (40, 84) and blade guide means 34, 36 whereby the cutting plane of the blade is rotated relative to a plane tangent to the pulleys, the saw having rip cut width capacity and cross cut thickness capacity each at least 50% of the diameter of the pulleys. Drive from the motor 24 to the drive pulley is by spur gears and chain drive (Figs. 4, 5, not  shown). The idler pulley is mounted on an adjustable plate (98, Figs. 3, 5, 6, and 7, not shown) an adjuster mechanism 32 with manually controlled adjustment lever 118 applying band tensioning forces to the plate (98) through springs (136). As shown in Fig. 10 the blade guides incorporate guide rollers (which are provided by the outer races of ball bearings 168), guides 160 and a backing roller 170. The tool may be powered by a single- or two-speed motor with speed selector.
Patent GB-386169-A (GB)
Title: Improvements in or connected with boxes, cases or like receptacles for eggs and other commodities
IPC: B65D81/24
Filed: 1932-03-22
Abstract: 386,169. Boxes for eggs &c. DEHN, F. B., 103, Kingsway, London.-(Benoit, L. ; 2614, West 50th Street, Chicago, U.S.A.) March 22, 1932, No. 8553. [Class 18.] A box or case having one or more internal fillers or cellular structures forming compartments for eggs &c. has the base or walls or both the base and walls provided with corrugations or like inwardly-directed projections disposed in alignment with the edge of those members of the cellular structure which are disposed at right-angles to the base &c. of the box whereby the parts of the cellular structure between the said members are maintained out of contact with the adjacent and parallel base &c. of the box. As shown the box is of metal with integral or separate end walls 14 and the base 12 and walls 13, 14 are corrugated to provide the inwardly-extending projections 1 which engage the ends of the filler members a, b and of the flats c so that the eggs are supported by parts of the cellular structure spaced from the base and walls by the outbends d, e of the corrugations. The box may have one or more partitions 22 which are of zig-zag formation so as to provide the parts h spacing the cellular structure from the partition. The side walls 13 may be secured to separate end walls 14 by ears 16 on the end walls passing through slits in the side walls and being bent and clinched in place and the partitions may be secured in the box by tongues 25 extending from the vertical edges of the partition engaging slots in ears 24 struck inwards from the sides of the box and being bent thereover; the bottom edge of the partition is engaged by ears 23 struck up from the base 12. The lid 15 may have a depending flange 18 and is secured in place by ears 19 thereon which are passed through straps 20 offset from the end walls 14 and are bent upwards against the outer faces thereof ; the flange between the ears 19 is bent outwards at an incline and then inwards to form handles 26 and the sides 13 are extended so that the handles 26 do not project beyond them ; the handles may be formed on the ends of the box. The end walls and partitions may be of wood with corrugated surfaces and the base and walls may have ventilating openings 36 which also enable the contents to be processed while in the box.
Patent GB-489052-A (GB)
Title: Improvements relating to electric condensers
IPC: C04B35/49
Filed: 1937-03-23
Abstract: An electric condenser dielectric is made by shaping and burning a mass containing a substantial amount of titanium and zirconium dioxides wherein the amount of zirconium oxide is less than 1/4 and not less than 1/20 by weight of the titanium dioxide.  The mass may comprise (parts by weight) titanium dioxide 80, zirconium dioxide 10, clay 8, alkaline earth carbonate 2.  Up to 50 per cent by weight of clay or alkaline earth carbonate may be used.  Part of the titanium dioxide may be in the pre-burned condition.
Patent GB-175554-A (GB)
Title: Improvements in air-cooled internal-combustion engines having radial cylinders
IPC: F02F1/06
Filed: 1921-03-21
Abstract: 175,554. Armstrong Siddeley Motors, Ltd., and Green, F. M. March 21, 1921. Cylinders, cooling.- In radial-cylinder aircooled engines, having two or more rows of cylinders, guides or baffles C are so ararranged as to ensure that the cylinders in the back row only receive air unheated by the front row.
Patent GB-995994-A (GB)
Title: Chemical compound applicator for threaded fastener
IPC: F16B33/00
Filed: 1964-03-02
Abstract: 995,994. Locking nuts and bolts. SCREW & BOLT CORPORATION OF AMERICA. March 2, 1964 [June 20, 1963], No. 8680/64. Heading F2H. [Also in Division B2] Circumferentially spaced longitudinal strips 15a, 16a of different chemical compounds are deposited by coating-apparatus (see Division B2) on the threaded portion of a fastener, e.g. a bolt 18, the compounds being such as will react together when mixed to form a locking material such as a rubber compound or epoxy resin.
Patent GB-609767-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K5/128
Filed: 1946-03-21
Abstract: 609,767. Cores for dynamo-electric machines. CHANCE BROS., Ltd., and ALLISON, A. March 21, 1946, No. 8799. [Class 35] A thin sheath is held in a stator bore by an assembly of annular laminµ having apertures opening on the inner periphery of the laminµ, these apertures forming passages to receive plastic material for securing the laminµ together. As shown, the conductor slots between teeth b are closed by a laminated ring d to which a stainless steel sheath f is bonded by plastic material forced into ducts provided by the apertures d. The sheath is sealed to two end covers to form a liquid-tight stator enclosure, and is supported beyond the stator core by non-laminated rings placed on each side of the ring d. Some of the apertures e may open on to the outer periphery of their laminµ.
Patent GB-399532-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K11/06
Filed: 1932-03-24
Abstract: 399,532. Transformers. REPUBLIC STEEL CORPORATION, Youngstown, Ohio, U.S.A.-(Assignees of Cramer, F. W. ; 1868, Coronda Avenue, Youngstown, Ohio, U.S.A.) March 24, 1932, No. 8863. Convention date, Nov. 20, 1931. [Class 38 (ii).] A transformer 30 for an electric welding machine is mounted on a vertically adjustable carriage 22 with its secondary terminals connected by legs to plates 45, 46 to which brackets 47, 48 for supporting brush holders are clamped. The transformer is surmounted by a housing 32 enclosing a suction fan 33 which draws air up the columns 12 and connecting girders 15, 16 and ducts 34 slidable with the casing, so as to cool the transformer.
Patent GB-538112-A (GB)
Title: Improvements in vulcanization accelerators
IPC: C08K5/00
Filed: 1940-05-20
Abstract: 538,112. Thiocarbamylsulphamines. UNITED STATES RUBBER CO. May 20, 1940, No. 8906. Convention date, June 22, 1939. [Class 2 (iii)] [Also in Group V] Thiocarbamylsulphamines, prepared by the action of monochloramine on dithiocarbamates. are used as vulcanization accelerators. Examples are dimethylthiocarbamylsulphamine prepared from sodium dimethyldithiocarbamate, di-nbutylthiocarbamylsulphamine from sodium din-butyldithiocarbamate, dibenzylthiocarbamylsulphamine from dibenzyldithiocarbamate, oxydiethylenethiocarbamylsulphamine and cyclopentamenthylenethiocarbamysulphamine.
Patent GB-870171-A (GB)
Title: Improvements in blades for compressors
IPC: F04D29/36
Filed: 1959-03-16
Abstract: 870,171. Compressor blades. UNITED AIRCRAFT CORPORATION. March 16, 1959 [Sept. 4, 1958], No. 8960/59. Classes 110 (1) and 110 (3). An aerofoil blade for a compressor comprises a rigid spar forming a part of the aerofoil surfaces of the blade and upper and lower bimetallic sheets extending chord wise to form a continuation to the leading and/or trailing edges of the blade. A solid leading section 12 extends the full length of the blade and connected to it are upper and lower bimetallic sheets 14, 16 forming the trailing section. The outer layer 28 of sheet 14 and the inner layer 30 of sheet 16 are of the same material and have a larger temperature coefficient of expansion than the layers 32, 34. Thus an increase in temperature will cause the trailing edge of the blade to deflect as shown by the dotted lines. Alternatively, the leading section may be bimetallic with a solid trailing section or both leading and trailing sections of bimetallic construction may be attached to the rigid spar. The sheets are attached by welding and only one bimetallic sheet may be attached while the other is free in a lengthwise slot in the solid member. The bimetal sheet may vary lengthwise of the blade either in thickness with the material becoming thinner towards the tip or in width, Fig. 9, the material 94 increasing chordwise towards the tip. In another modification both width and thickness of the bimetallic sheets may vary over the length of the blade. In Fig. 15, a blade is shown having a bimetal portion 140 in which is embedded a heating element 142 whose temperature can be controlled by a battery and rheostat. This gives a fine control setting for the blade camber.
Patent GB-725849-A (GB)
Title: Crystal controlled electronic system
IPC: H03B5/34
Filed: 1953-03-31
Abstract: 725,849. Valve generating circuits. SIERRA ELECTRONIC CORPORATION. March 31, 1953 [April 15, 1952], No. 8969/53. Classes 40 (5) and 40 (6). A crystal-controlled oscillator has a negative capacitance in shunt with the crystal to alter the frequency of oscillation. The oscillator shown comprises a cathode coupled pair of valves 24, 26 having a crystal 11 connected to one grid. The negative capacitance comprises a two-valve amplifier 22, 21 having a voltage fed back to the grid of valve 22 through a 90 degrees phase shifter 32, 33. Varying the gain of this amplifier as by varying the grid voltage of the valve 22 varies the magnitude of the negative capacitance and thus the frequency of the oscillator. The variation may be effected by a modulating voltage from a source 63 or by a key 57 which is connected to two voltage sources to produce frequency shift keying.
Patent GB-116378-A (GB)
Title: A Machine to Make Hay-cocks or Quiles.
Inventor: MCCONNELL PRIMROSE
IPC: A01D85/00
Filed: 1917-06-27
Abstract: 116,378. McConnell, P. June 27. 1917. Haymaking; hay-cocking machines.-A haycocking machine comprises a frame 1 supporting an elevator 4 provided with spring steel tines which carry the hay to a hopper 5 positioned over the pivoted hay receptacle 6 shown in Fig. 3. The receptacle 6, which is pivoted at 9, is provided with counterbalance weights 10 so that, when empty, it moves into the position shown in Fig. 1, in which position it is held by a latch 8. When sufficiently loaded, the driver trips the latch 8 and the receptacle tilts and discharges its load through its open rear portion. Small prongs 11 close 'the bottom of the hopper and prevent any hay falling clear of the receptacle during the discharge. The bottom ribs of the receptacle 6 are removable so that the machine may be used for tedding or windrowing.
Patent GB-472748-A (GB)
Title: Improvements relating to electric tumbler switches
IPC: H01H9/48
Filed: 1937-03-31
Abstract: 472,748. Tumbler switches. BULGIN & CO., Ltd., A. F., and BULGIN, A. F. March 31, 1937, No. 9202. [Class 38 (v)] A tumbler switch particularly for wireless apparatus comprises a contact roller f movable into and out of engagement with a pair of fixed contacts a by a spring toggle link h moved by a tumbler o. The forked member g, which actually engages the contact roller f, and the lower part n of the tumbler are made of insulating material so as to introduce two insulating gaps in series between the roller f and the earthed metal casing s, q, to reduce the risk of breakdown.
Patent GB-779832-A (GB)
Title: Improved needle for threading mattress tuft assemblies
IPC: B68G15/00
Filed: 1954-03-30
Abstract: 779,832. Sewing. BLUNDELL, C. March 8, 1955 [March 30, 1954], No. 9230/54. Class 112. A needle for threading mattress tuft assemblies has a slotted portion 28 into which the enlarged end 30 of the connecting member is placed and another slot 29 communicating with slot 28 but less wide so that the end 30 can be drawn therein and held captive during the threading operation. A third slot 32 has sliding therein an ejector cam 34 fixed to the rear end of an ejector rod 33 working within the bore of the needle, a spring 37 tending to retain the rod 33 in the withdrawn position. When the needle is withdrawn after threading the nose 35 of the cam engages the padding 44 to operate the ejector.
Patent GB-720873-A (GB)
Title: Power operated predetermined torque release wrench
Inventor: PEDERSON HARRY CLIFFORD
IPC: B25B23/14
Filed: 1953-04-02
Abstract: 720,873. Claw clutches. CLYDE ENGINEERING & MANUFACTURING CORPORATION. April 2, 1953. No. 9256/53. Class 80 (2). [Also in Group XXII]. A power-operated wrench for screwing up nuts has a toothed clutch 23, 24 which is held engaged by a spring 11 until a pre-determined torque is reached and is then held disengaged so that the teeth do not wear by overrunning. The upper member 24 of the clutch is keyed to a main shaft 5 and the lower member 23 is formed on a sleeve 17 which is rotatable and slidable on the shaft and bears on the spring 11 through a bearing comprising a steel washer 14 keyed at 16 to the sleeve, a bronze washer 13 and a steel washer 12. An annular ring 21 is keyed to the sleeve and is formed with slots 18 each having a recess 19 at one end in which a roller 20 is fitted and retained by a ring 32. A driven member 26, which is rotated when a spring-loaded clutch 38, 39 is engaged, has fingers 28 whose sides engage the rollers 20 and drive the members 21 and 17 and the shaft 5 until, when a predetermined torque is reached, the downward movement of the members 21 and 17, as the teeth of the clutch 23, 24 tend to disengage, allows cam surface 29 on the fingers 28 to ride up over the rollers 20 and hold the teeth disengaged. An adjustable screwed abutment 7 is provided at the lower end of the spring 11.
Patent GB-1392034-A (GB)
Title: Cold rolling of copper and copper alloys
IPC: C10M173/02
Filed: 1971-04-13
Abstract: 1392034 Metal-working lubricants BRITISH NON - FERROUS METALS RESEARCH ASSOCIATION 13 April 1972 [13 April 1971] 9298/71 Addition to 1191114 Heading C5F Metals are worked using, as lubricant a onephase aqueous solution of an ampholytic surfaceactive agent which satisfies the criteria: (a) a 1% aqueous solution of the agent can be heated at 65‹ C. for 96 hours without phase separators or emulsion formation; and (b) a 1% aqueous solution of the agent is separately compatible with a 0À1% concentration of each of NaCl, Na 2 SO 4 , FeSO 4 , FeCl 3 , Na 2 CO 3 , CaCl 2 , ZnSO 4 , MgSO 4  and CuSO 4 . Imidazoline derivatives, hexadecyl-substituted betaine, and ammonium N-lauryl tetramethoxy amine sulphate are exemplified. Conventional additives may be present, e.g. thickness, silicone anti-foam agents, and corrosion inhibitors such as NaNO 2  or Na hexametaphosphate.
Patent GB-254037-A (GB)
Title: Improvements relating to milking pails
IPC: A01J9/00
Filed: 1925-04-08
Abstract: 254,037. Dabbs, E. April 8, 1925. Buckets and pails; lids and covers.-A milking pail has one part of the mouth covered by a fixed or removable flange A inclining upwardly to a restricted reception aperture D, the remaining portion being covered in by a detachable lid B.
Patent GB-767728-A (GB)
Title: Improvements relating to the production of photoelectric impulses
IPC: H04N1/028
Filed: 1954-03-31
Abstract: 767,728. Semi-conductive devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 31, 1954 [April 25, 1953], No. 9422/54. Class 37. [Also in Group XL (b)] In a system for producing photo-electric impulses in response to light impulse the wave form of the photo-electric impulses is improved by subjecting the cell to additional red or infrared radiation. The Specification explains that if the cell is subjected to a high intensity rectangular impulse the cell output will be of the shape shown in Fig. 7. Where, however, in the intervals between the light impulses the cell is subjected to infra-red radiation a waveform of the shape shown in Fig. 8 is produced, since the infra-red has the effect of suppressing the sensitivity of the cell to visible light at low light intensities. This principle is utilized in the arrangement shown in Fig. 9 in which the light from the source 5 is directed through an outer row of apertures in a rotating chopping plate 3 to a cadmium sulphide crystal 1, while the additional infra-red radiation passes through an additional row of apertures which are so arranged as to allow infra-red to reach the cell when the light is interrupted and vice versa.
Patent GB-102122-A (GB)
Title: Improvements in or relating to Sheet Delivery Apparatus for Printing Machines.
Inventor: WINKLER CARL
IPC: B65H29/36
Filed: 1916-07-04
Abstract: 102,122. Winkler, C. July 4, 1916. Delivery apparatus. - Printed sheets are received from the impression cylinder of a printing-press by a belt conveyer which is driven at the same surface speed as the impression cylinder while receiving the sheets, and then at a reduced speed to deliver the sheets. The invention is shown applied to an oscillating- cylinder machine, but is applicable to other kinds of machine. The impression cylinder a carries two gear-wheels c, d, of different diameters. The gear c meshes with a gear e on the driving-shaft f of the conveyer belt k, and the gear d meshes with an intermediate gear g meshing with a small gear h also on the shaft f. The gears e, h drive the shaft through free-wheel devices. When the cylinder a is delivering the sheet over the stripper z to the belt k, the belt is driven by the gears d, g, h at the same surface speed as the cylinder a, and when the cylinder is moving in the reverse direction, the belts are driven at a slower rate by the gears c, e. The sheets pass from the belt k on to cords, wound on spools on a shaft r and attached to a rod y carried by chains o, which are reciprocated slowly by a chain t from the gear g. During the slow movement of the belt k, the cords are unwound from the spools and receive the sheet from the belt, and during the rapid movement of the belt, the cords are rewound on the spool, and the sheet, which is prevented from returning in any suitable way, falls on to a delivery table.
Patent GB-576868-A (GB)
Title: Improvements relating to electric lighting fittings
IPC: F21V17/00
Filed: 1944-05-17
Abstract: 576,868. Electric light fittings. BRITISH THOMSON-HOUSTON CO., Ltd., MACDIARMID, S. C., and HULL, J. N. May 17, 1944, No. 9433. [Classes 75 (ii) and 75 (iv)] The cover glass M of a lighting fitting for fluorescent discharge or other tubular electric lamps L is mounted in framework C provided on one side with spaced arcuate members F and on the other side with one or more lugs H. The members F are hooked over the side of a reflector plate A supported from the ceiling by pillars P and the other side of the framework is swung upwards until the lugs H pass through slots J on the other side of the plate A. The 'framework is then moved longitudinally and the members F ascend ramps G on the plate A until the upper edge of the framework is in contact with the ceiling.
Patent GB-458982-A (GB)
Title: Improvements in or relating to lock washers
IPC: F16B39/24
Filed: 1934-03-26
Abstract: 458,982. Making washers. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.- (Shakeproof Lock Washer Co. ; 2501, North Keeler Avenue, Chicago, U.S.A.) March 26, 1934, No. 9438. [Class 83 (ii)] [See also Group XXV] A lock washer is formed by cutting radial slits 14 from both peripheries of an annular disc, and then reducing the outer diameter of the disc so that the teeth formed by the edges of the slits are caused to overlap. The slits are each longer than half the radial width of the disc. The reduction in diameter may be effected by forcing the washer through a tapered aperture, or placed in a die having a number of inwardly extending jaws. Reference has been directed by the Comptroller to Specification 389,369.