baber/WOPTO huggingface dataset:
Patent GB-392689-A (GB)
Title: Improvements in or relating to portable motion-picture projection apparatus
IPC: G03B21/20
Filed: 1932-02-23
Abstract: 392,689. Locking switches. SIEMENS & HALSKE AKT. - GES., Siemensstadt, Berlin. Feb. 23, 1932, No. 5399. Convention date, Feb. 23, 1931. [Class 38 (v).] A switch 12 in series with a resistance regulator 1 for a cinematograph projector can only be closed when a certain minimum resistance is in circuit. When the switch is closed, the resistance can then be reduced to any desired amount. In the form shown, the shaft 2 of the resistance regulator carries a cam 3 which bears against a bar 4 sliding in bearings 6, 7 against the action of a spring 8. The end 4<1> of the bar 4 has flexibly mounted on it an extension 9 which comes in the path of the downwardly moving contact block 11 of the switch 12 when the resistance is below a certain amount, but if the switch 12 is already closed, the bar 4 can be moved from the dotted to full-line position to reduce resistance as desired, the extension 9 bending back in the process. An adjustable stop 14, 15 may also limit the movement of the cam 3, and a button 13 on the extension 9 allows the extension to be moved out of locking position by hand if desired. In a modification, an electromagnetic or mechanical arrangement is also operated by the rapid return of the extension 9 when the switch is opened to cause the regulator to move to a safe resistance.
Patent GB-422743-A (GB)
Title: Apparatus for measuring blood pressure
IPC: A61B5/022
Filed: 1934-02-19
Abstract: 422,743. Blood-pressure measuring- apparatus. SPICKER, F., 11, Wielandstrasse, Charlottenburg, Berlin. Feb. 19, 1934, No. 5401. Convention date, Feb. 18, 1933. [Class 81 (ii)] In apparatus for measuring blood - pres. sure comprising a pair of cuffs strapped tc the arm and connected to inflating means, a leak valve,and a mano meter, the pipe connections 2, 7, to the cuffs communicate with a chamber such as 4 through constricted openings 3, 5, and the pipe 7 leads to a manometer which may comprise a diaphragm 8 and pointer 9 supported on the chamber, or may be a mercury or other manometer, and which is subject to the pressure, applied to the cuffs, on one side only. A tube 11 leading into the chamber is connected to a bulb-type or other air pump carrying a leak-valve. Alternatively the valve may be connected to the connections 2 or 7.
Patent GB-1502772-A (GB)
Title: Bale collectors
Inventor: AVID JAMS KENDALL
IPC: A01D87/12
Filed: 1975-04-23
Abstract: 1502772 Bale gripping FARMHAND (UK) Ltd 23 April 1975 [6 Feb 1974] 05463/74 Heading B8H A bale fork for transporting packs of straw, &c. bales and having hydraulically actuable grapple hooks 12a, 12b is modified so that it may also collect bales from the ground to form the pack. As shown the hooks on only one side of a modified 8-bale fork frame 1 are illustrated. The hooks are carried by half-shafts 13a, 13b having cranks 15a, 15b connected by links (not shown) to a separate hydraulic actuator for each row of cranks. The left-hand side of the frame has a depending skirt, and guide ribs 17a, 17b are carried by the half-shafts. A cross-tube 5 may support splayed guide plates (not shown) to provide four entry gates for the fork which is held on a tractor front loader. In operation, with all the hooks retracted the fork is moved forward to collect two bales in alignment between the side skirt and rib 17a. The actuator for the first section is now actuated to grip the bales with the hooks 12a and raise the rib 17a. The operations are repeated for the other three sections so that eight bales may be retained and off-loaded en bloc on to a vehicle or to form part of a stack, the front guide plates being pivotally mounted and weighted so as to drop back over the fork and not foul the stack. Sensors 20a, 20b provide for automatic operation in which the fork collects in a slightly "nose-up" attitude and is lowered to engage the appropriate sensor with the forward bale of a pair for operating the associated actuator. A common release valve may release all the actuators. The guide ribs 17a, 17b may be detached if the fork is to be used for collecting bales already in a pack.
Patent GB-525230-A (GB)
Title: Improvements in or relating to change speed gearing
IPC: F16H3/08
Filed: 1939-02-20
Abstract: 525,230. Variable-speed and reversing gearing. BOSTOCK, F. J., and BOSTOCK & BRAMLEY, Ltd. Feb. 20, 1939, No. 5531. [Class 80 (ii)] Variable-speed and reversing gearing, particularly adapted for the driving of Diesel railcars &c. comprises constant-mesh gear wheels 1, 2 mounted respectively on shafts 3, 4 and non-meshing wheels 5, 6 coaxial respectively with the wheels 1, 2 and in constant mesh with a wheel 9. Also coaxial with the wheels 1, 2 are change-speed wheels 11, 12. The wheels are shown all running freely on their shafts, but one of the wheels 11, 12 may be keyed to its shaft and one of the wheels 1, 2 to the other shaft. Either the wheel 9 or one of the wheels 1, 2 or one of the wheels 11, 12 may be the driver. Opposite directions of rotation of the driven member may be obtained by coupling the wheels 1, 5 or the wheels 2, 6. Changes in speed may be obtained by coupling the wheels 1, 11 or the wheels 2, 12.
Patent GB-726090-A (GB)
Title: Process for producing butadiene polymer with the incorporation of oil extenders
IPC: C08J3/18
Filed: 1953-02-27
Abstract: Butadiene is polymerized or copolymerized with an Alfin catalyst in the presence of a diluent and then blended with a quantity of a dispersible plasticizer equal in weight to the butadiene.  Styrene is the specified copolymerizable monomer, sodium isopropoxide and allyl sodium the catalyst, n-pentane the diluent and a hydrocarbon oil high in aromatics the plasticizer. The diluent may be used in an amount equal to that of the plasticizer.
Patent GB-784165-A (GB)
Title: Improvements relating to oil-impregnated porous bearings
IPC: B22F3/26
Filed: 1955-02-25
Abstract: An oil-impregnated porous metal part adapted for use in a bearing is made by sintering the part, dipping it for not more than 5 seconds in an oil suspension of molybdenum sulphide, sizing it, subjecting it to vacuum, applying oil to it and then releasing the vacuum.  A molybdenum sulphide coating is thus welded to the surface, and at least part of the surface pores are left open.  As applied to the production of a porous bronze bearing a mixture of powdered copper, tin and graphite is compacted in a mould having the shape of the desired part, but somewhat oversize.  The part is sintered at 1500 DEG  F. for 30 minutes, and is then dipped for not more than 5 seconds in a 4 per cent suspension in oil, preferably warmed to 150 DEG  F. of pulverized purified natural molybdenite having a particle size of up to 70 microns.  It is next sized by placing it in a mould and compressing it to fit the mould by a core-piece or pin which moves relatively to the working surface of the bearing, thus firmly uniting the layer of molybdenum sulphide to the underlying metal. The bearing is finally subjected to vacuum in an autoclave, after which oil is introduced to cover the parts and the vacuum is released.  Other materials such as iron-copper mixtures, powdered iron and powdered brass may be similarly treated.
Patent GB-1157596-A (GB)
Title: Protecting Pumps Against Corrosion.
Inventor: DETTINGER WILLI
IPC: F16J15/40
Filed: 1968-02-05
Abstract: 1,157,596. Seals. PUMPENFABRIK URACH, G.m.b.H. 5 Feb., 1968, No. 5741/68. Heading F2B. A corrosive reaction product or its precipitate is prevented from reaching the packing 17 of a pump by supplying a reactant in an opposing direction. Cooled liquefied ammonia may be directed through passageways 20, 19 and 18 to mix with a corrosive working fluid of carbamate in the pumping chamber 11, the ammonia being supplied either continuously or in synchronism with the stroke of the pump piston 12.
Patent GB-1060906-A (GB)
Title: An improved tool holder for use in copying lathes
Inventor: ASHLEY JOHN PERCIVAL
IPC: B23B27/16
Filed: 1965-01-22
Abstract: 1,060,906. Lathe toolholders. CHARLES CHURCHILL & CO. Ltd. Dec. 20, 1965 [Feb. 10, 1965], No. 5787/65. Heading B3B. A toolholder for an indexable throwaway cutting bit (10) of rhomboidal shape includes a screwdown clamp (17) having a sloping heel (25) adapted to engage a sloping surface (26) formed in the toolholder body (16), a projection (24) on the underside of the clamp being provided to engage a corresponding centrally located depression (14) in the surface of the cutting bit (10). As the clamp is tightened down by a screw (18) the cutting bit is drawn into engagement with the support faces (21, 22) of the cutting bit recess (19). As an alternative the projection may be provided on the cutting bit and the complementary depression in the clamp. The face of the cutting bit is provided with two chip grooves (13).
Patent GB-534605-A (GB)
Title: Improvements relating to tubular condensers
IPC: F28F9/16
Filed: 1940-04-01
Abstract: 534,605. Tube supports. BRITISH THOMSONHOUSTON CO., Ltd. April 1, 1940, No. 5821. Convention date, March 30, 1939. [Class 64 (iii)] In a condenser intended particularly for use in a refrigerating plant, a perforated plate 17 supporting the cooling tubes 14 intermediate its ends is moved up or down by a screw 19 to force the apertures in the plate against tubes to prevent them from being rattled or vibrated by the machine driving the compressor. Apertures 54, 55, 56 are provided in the plate for the circulation of refrigerant.
Patent GB-549151-A (GB)
Title: Improved methods of and apparatus for burning finely divided solid fuel in suspension
IPC: F23J1/00
Filed: 1941-05-05
Abstract: 549,151. Pulverulent fuel furnaces : water-tube boilers. BABCOCK & WILCOX, Ltd. May 5, 1941, No. 5847. Convention date, July 31, 1940. Class 51 (i)] [Also in Group XIII] Pulverulent solid fuel is supplied in suspension to a combustion chamber or zone with a limited supply of air so that the slag produced possesses a relatively low fluid temperature and is removed from the combustion chamber or zone in a fluid condition while the :gases of combustion carrying further slag particles are passed into a second zone and supplied with additional air to effect combustion of the gases and solidification of slag. Where the fuel has a substantial iron content ferrous oxide is formed in the slag in the first combustion zone and is converted to ferric oxide in the second combustion zone. The process of combustion may be carried out in boiler furnaces of the 'kind described in Specifications 497,718 and 534,279, [Group XIII], and Fig. 1 shows one such form of boiler having a furnace chamber 10 lined with water tubes to which fuel is supplied by burners 27 with a limited supply of air from a conduit 25. Molten slag collects on the hearth 29 and is tapped off from a central opening (not shown) in the hearth. The gases flow from the lower part of the combustion chamber beneath a fluid cooled partition 20 to an upflow passage 12 near the roof 33 of which they are supplied with additional air through ducts 81 before passing through a passage above a fluid cooled partition 21 to the downflow passage .13 leading to the bottom of a convection section 11 of the iboiler separated from the passage 13 by a fluid cooled wall 22. The upflow and downflow passages 12, 13 are lined at the sides with steam reheater tubes 57 connected to upper and lower headers 56, 58 while the downflow flow passage 13 is subdivided by rows of superheater tubes 48 connected to superheater tube banks in the convection section of the boiler. Ashes separated from the gases tin 'the downflow :pass and convection section are discharged into a hopper 61. The convection section is divided into two compartments by a vertical -partition containing superheater and reheater tubes respectively the flow of gases through the compartments being controlled by dampers. Above 'these compartments ,air heaters are arranged for the combustion air.
Patent GB-1535316-A (GB)
Title: Heat-insulating material and inflatable sleeping bag including same
IPC: A47G9/00
Filed: 1975-02-12
Abstract: 1535316 Sleeping bags CANADA MINISTER OF NATIONAL DEFENCE 20 Feb 1976 [12 Feb 1975] 5879/75 Heading A4G A sleeping bag comprises upper and lower portions each of which is separately inflatable and contains an insulating material in the form of randomly oriented strips of metallized plastics film. As described the portions have outer layers of nylon coated with urethane, or plastics coated cotton drill. The insulating material comprises strips of "Mylar" (R.T.M.) polyurethane or p.v.c. from 1/8" to 1" wide and from 0À2 to 2 mil thick metallized with aluminium on one or both sides. The portions are joined together by "Velcro" (R.T.M.) or zip fasteners and may include nylon webbing to prevent movement of the insulating material. A woollen liner may be attached to the inside of the bag.
Patent GB-121689-A (GB)
Title: Improvements in or appertaining to Machines for Washing Flocks, Rags or the like.
Inventor: CHAMBERS EDGAR VINCENT
IPC: D06B5/00
Filed: 1918-04-08
Abstract: 121,689. Chambers, E. V., and Hammond, T. C. April 8, 1918. Agitating materials and liquids together.-In a flock, rag, or other washing machine in which the water and material are circulated by a revolving paddle b, baffle-bars d are arranged above the perforated bottom e to intercept sand and ether suspended solids and assist in their settlement through the perforated floor. Matter that has thus settled is removed by lifting a plug h. The baffles may be at right-angles to the sides of the vessel or inclined, as shown in Figs. 3 and 4.
Patent GB-558950-A (GB)
Title: Improvements in apparatus for feeding ammunition in belt form to machine guns designed for magazine feed
IPC: F41A9/51
Filed: 1942-05-02
Abstract: 558,950. Machine guns. BOULTON PAUL AIRCRAFT, Ltd., and TOMPKINS, W. C. May 2, 1942, No. 5951. [Class 92 (ii)] Relates to cartridge feed mechanism for machine guns of the kind in which ammunition on a belt 17 is fed to a gun designed for feed from a box magazine 16 by a roller 3 driven by a spring 6 which urges the rounds, when stripped from the belt, to the gun feed port. According to the invention, a belt feed roller 1 driven by external power is provided which is rotated at the same rate as the rounds roller, preferably by the hydraulic servomotor means described in Specification 558,949, this rotation serving to rewind the spring 6.
Patent GB-608590-A (GB)
Title: Improvements in mercury-arc discharge devices of the kind having a mercury-pool cathode
IPC: H01J13/08
Filed: 1945-03-09
Abstract: 608,590. Metal-vapour discharge apparatus. BANKS, G. B. March 9, 1945, No. 5986. Drawings to Specification. [Class 39 (i)] In a mercury-arc discharge'tube of the kind in which an igniter electrode dips into the cathode pool and particularly of the kind described in Specification 608,589, the mercury pool includes as an admixture a material of low work-function such as sodium, barium, potassium or caesium to reduce the ignition potential. Preferably, sodium metal is used and added to the mercury as a few parts in a million. The admixture material prepared in a vessel in communication with the tube is absorbed by running the mercury into the vessel and then returning it to the main tube which is then sealed off.
Patent GB-511759-A (GB)
Title: Improvements in suspension devices for milk-vessels and the like
IPC: A01J9/08
Filed: 1938-05-07
Abstract: 511,759. Wall brackets. JUNGHOLM, K: J. May 7,1938, No. 6011/39. Divided out of 504,975. [Class 52 (v)] A wall bracket 2 for inverted milk vessels &c. has a slidable hook 3 to engage over the bottom hoop 7 of the vessel 1 and a fixed hook 22 to receive its handle 23. The hook 22 may be engaged under the top rim of the vessel. The bracket may be formed with lateral supporting arms 14.
Patent GB-131061-A (GB)
Title: Improvements in Electric Furnaces.
Inventor: FLEMING JOHN AMBROSE
IPC: H05B3/66
Filed: 1918-04-09
Abstract: 131,061. Fleming, J. A. April 9, 1918. Resistance furnaces.-A heating wire is hung in free loops from supports on the furnace wall, which has high heat-insulating power. The wire r may be of nichrome, of uniform section and resistance, and without joints. It is slightly spaced from the wall. Short-circuiting may be prevented by distance-pieces of fused quartz, alundun, or diatomaceous brick. The loops may be supported by iron or copper lugs or strips, or by notched projecting bricks k. They may be arranged in series or parallel, or for polyphase currents. The wall may be of fire-clay, silica, or diatomaceous bricks, surrounded by slag wool in a brick or iron cylinder; or a very thick wall of diatomaceous brick may be surrounded by stock or fire-bricks. A door or lid is made of asbestos, or diatomaceous brick, with an aperture for inspection and for a pyrometer. Current may be regulated by a choking coil with an adjustable core. The furnace is suitable for annealing iron or steel or heating it to a welding temperature, or for melting other metals. Dimensions are given.
Patent GB-100369-A (GB)
Title: High Power and Speed Turbine Plant.
IPC: F01D1/02
Filed: 1916-04-28
Abstract: 100,369. Maschinenfabrik Oerlikon. April 28, 1915, [Convention date]. Motor power plant.-Relates to multi-stage turbine installations for driving electric generators, wherein the stages are distributed over two or more shafts and so connected that the motive fluid is distributed in parallel as soon as the highest economical admissible vane-length has been attained, and the individual output of each shaft is the same. The high-pressure turbine K of the first unit I, Fig. 3, discharges into a medium-pressure stage M of the second unit II, and when the vane-length has reached its maximum limit, the exhaust from this stage is led in parallel to the low-pressure stages N, 0 of the second unit II and to the low-pressure stage L of the first unit I. The stage L may be dispensed with, and the medium-pressure stage M may be omitted. In a three-shaft installation, Fig. 5, the working fluid, after passing in series through the stages P, Q, is led in parallel through the stages R, S and again subdivided for parallel supply to the stages T, V, W, U, X. The stage X may be dispensed with.
Patent GB-635496-A (GB)
Title: Fittings for loading and unloading vehicles
IPC: B60P1/64
Filed: 1947-03-04
Abstract: 635,496. Vehicle fittings for loading and unloading. JARVIS, H. R. March 4, 1947, No. 6156. Convention date, Oct. 14, 1946. [Class 78 (iv)] In a freight-loading device of the type in which the freight is put on a platform having rails on its underside for entering grooved tracks on the transporting vehicle, a pair of grooved auxiliary tracks 23 is detachably connected to either end of the main tracks 22 so that they can be raised or lowered relative thereto, by means of tongues 34 engaging sockets 35 in the main tracks, and the platform 11 is equipped with hydraulic jack-actuated castors 13 at its four comers so that it may be slid on to a loading platform and the castors lowered for moving it in all directions thereon. The four hydraulic jacks 14 may be controlled together by a single master cylinder 15 or may be actuated one or two at a time. The platform is slid along the tracks by means of a plurality of pinions 25, mounted on shafts 29 in the pairs of tracks 22 and 23, and engaging a rack 18 on the underside of the platform alongside one of the rails 17, the pinions being driven by worm wheels 26, also on shafts 29, engaged by worms 30, Fig. 1, which are mounted on two shafts 27, 28, supported in brackets attached to tracks 22, 23 respectively, and interconnected by a universal joint 36. Shaft 27 is also provided at either end with bevel gears 31 meshing with bevel gears 32 on stub shafts 33 having universal joints 43 and a keying device 39 for attaching a hand crank or auxiliary power rotator. The platform is locked on the vehicle by means of four locking bars 51 which are thrust into recesses 49 in the rails 17 by means of a pair of bell-cranks 46 interconnected by links 47 and each having a handle 45 arranged to be held by means of a spring lock 53 in the locking position. The auxiliary tracks 23 may be collapsed for transport by having removable cross pieces 37, Fig. 7, which are flanged at the ends to engage brackets 40 on each track.
Patent GB-578055-A (GB)
Title: Improvements in and relating to rolling door constructions
IPC: E06B9/13
Filed: 1944-04-04
Abstract: 578,055. Roller shutters. MICHELMAN, N. April 4, 1944, No. 6233. [Class 20 (iii)] In order to accommodate the deviation from a vertical plane of a roll-up slatted door 10 as the diameter of the wound-up portion on a drum 12 increases a section 13b of the vertical side tracks is caused to move about a pivol 16, being guided by a stud 19 in the side wall which projects through a slot 20 in a web portion of the track section The door slats are interconnected by the engagement of oppositely coiled end portions 11a, 11b; a stud 23 is secured to one of the slats at each side, a cut out portion 28 in the outer slat enabling it to pivot about the inner.
Patent GB-741359-A (GB)
Title: Improvements in or relating to process for heat-treating molybdenum base alloys containing beryllium
IPC: C22C27/04
Filed: 1952-03-11
Abstract: Molybdenum-base alloys containing Be 0.03-7 per cent are heat-treated at a temperature between 3200 DEG  F. and 3800 DEG  F. for a time sufficient to increase the quantity of Be in solution, cooled at a rate sufficient to retain Be in solution and then heated in the range 1600 DEG  F. to 2000 DEG  F. for a time sufficient to increase the hardness of the alloy.  The alloy may contain at least 70 per cent of Mo + W, the Mo content exceeding the W content, 0.03-0.25 per cent Be, 0-0.06 per cent C and one or more of the following alloying elements V up to 7 per cent, Ti up to 14 per cent, Ta up to 9 per cent, Zr up to 2 per cent, Nb up to 10 per cent, Ni up to 0.4 per cent, Fe up to 1.3 per cent, Co up to 0.9 per cent and Cr up to 2 per cent, the maximum amounts of each of Be, W and the stated alloying elements being reduced in proportion to the extent that the amount of each other of the said elements approaches its maximum.  Th may also be present in the range 0.01-0.5 per cent. The alloy may be coated by dipping in a molten bath of Al containing 5-50 per cent Si as set forth in Specification 723,899.  This coating operation may be combined with the heat treatment, the solution treated alloy being quenched in the molten alloy to a temperature of 1350 DEG  F.-2000 DEG  F.  The quenched alloy can then be aged in an oxidizing atmosphere.  Specifications 656,796, [Group XXII], 741,360, 741,361 and 741,362 also are referred to.
Patent GB-545238-A (GB)
Title: Improvements in or relating to dry-shaving apparatus
IPC: B26B19/14
Filed: 1941-05-15
Abstract: 545,238. Dry shavers. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 15, 1941, No. 6303. Drawings to Specification. [Class 131] The subject-matter of this Specification is substantially the same as that described in Specification 655,605.
Patent GB-460073-A (GB)
Title: An improved machine for packing finely powdered materials into casks, bags or other receptacles
IPC: B65B1/22
Filed: 1936-03-03
Abstract: 460,073. Packeting. WILSON, H. A. March 3, 1936, No. 6401. [Class 94 (i)] A device for consolidating finely powdered materials in receptacles comprises a platform g for the receptacle formed on a piston h, vertically slidable in a body part a. A renewable abutment piece j, having a curved surface abruptly terminated by a vertical surface k co-operates with a cam d, having a node l terminated by an opposed vertical surface m, to raise the piston and platform and allow them to fall suddenly. The under surface of the platform and the upper surface of a flange b of the body are machined flat to provide a close contact, and a pin i prevents relative rotation. The lower part of the body acts as an oil well. The shaft c may be common to a number of cams, and each cam may be formed with a number of nodes.