baber/WOPTO huggingface dataset:
Patent GB-526169-A (GB)
Title: Improvements in or relating to the manufacture of combined blending agents and plasticisers for lacquers, particularly for coating regenerated cellulose films and sheets
Filed: 1939-03-07
Abstract: 526,169. Resinous condensation products. BRITISH CELLOPHANE, Ltd., HEAVEN, G. S., and BERRY, W. March 7, 1939, No. 7391. [Classes 2 (ii) and 2 (iii)] Combined blending agents and plasticizers for wax moisture-proofing compositions or for nitrocellulose lacquers containing wax are obtained by heating one or more resins with one or more plasticizers of the ester type until substantial condensation, as shown by improved physical properties, is effected. Resins include natural resins, e.g. gum dammar and ester gum ; also artificial resins, e.g., sulphonamide-aldehyde, polyhydric alcoholpolybasic acid or polymerized hydrocarbons. Suitable plasticizers are dibutyl phthalate and tricresyl phosphate. The resin and plasticizer may be heated in admixture, or in solution with or without other lacquer-forming ingredients. Examples are given of the production of condensation products from (1) ester gum and tricresyl phosphate, (2) a glycerine-phthalic anhydride resin and dibutyl phthalate, and (3) ester gum, gum dammar and dibutyl phthalate by heating at 100‹C. for 48 hours ; also of a lacquer obtained by heating a mixture of nitrocellulose, paraffin wax, glycerinephthalic anhydride resin, ethyl acetate and toluene at 40‹C. with stirring for 15 days. Other condensation products referred to are those from ester gum and dibutyl phthalate, maleic anhydride-modified ester gum dicyclohexyl phthalate and hydrogenated caster oil phthalate, sulphonamide aldehyde resin with dicyclohexyl phthalate and dibutyl phthalate, polystyrene and tricresyl phosphate, polyindene and tricresyl phosphate and glycerine phthalic anhydride resin' and tricresyl phosphate. Waxes include paraffin wax, petrolatum, cerium, Japan wax, palm wax, beeswax, chlorinated hydrocarbons, Chinese insect wax, stearic acid and synthetic waxes. Specifications 283,109, [Class 2 (ii)], and 380,483, [Group VIII], are referred to.
Patent GB-851351-A (GB)
Title: Improvements in or relating to wheelbarrow-like apparatus
IPC: B62B1/18
Filed: 1956-03-09
Abstract: 851,351. Hand trucks. CLARKSON, J. March 11, 1957 [March 9, 1956], No. 7398/56. Class 108(1). A hand truck for lifting bales, barrels, or other bulk objects comprises a wheel arch a, side members c cranked at c<SP>1</SP> and pivotally mounted on the arch at points b, and object gripping means such as spikes d fixed to the side members. In operation the truck is wheeled up to and positioned astride the bale &c., the members c being pivoted laterally away from each other to enable this position to be reached. The members c are then pushed towards one another so that the spikes d engage the bale, and the load is then wheeled away. A bar f provided with stops g<SP>1</SP> limits the pivoting movements of the members c, and a carrying box m with brackets to engage the cranked portions c<SP>1</SP> and the spikes d may be fitted so that the truck may be used as a normal wheelbarrow. Uprights i connected by a bar j may also be provided.
Patent GB-647440-A (GB)
Title: Improvements in or relating to carbon mortar or carbon concrete
Inventor: HILLIARD ALFRED
IPC: C04B35/532
Filed: 1948-03-11
Abstract: Carbon mortar or concrete is made by mixing a size graded unshrinkable carbon aggregate, furfural and concentrated sulphuric acid.  The carbon aggregate may be mixed with a hydrocarbon-containing oil, e.g. anthracene oil, refined naphthalene oil, washed creosote oil or pitch-creosote mixtures. Proportions specified are furfural: 10 to 20 per cent by weight of aggregate or aggregate/oil mixture; and acid: 10 per cent by weight of the furfural.  Specification 620,998, [Group VIII], is referred to.
Patent GB-636005-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J23/16
Filed: 1947-03-19
Abstract: 636,005. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 19, 1947, No. 7535. Convention date, Oct. 1, 1942. [Class 39 (i)] The leads 45, Fig. 3, to a magnetron cathode are each surrounded by a filter sleeve 53 attached to the casing 47 to minimize power losses. The anode portion 12 of the magnetron is of oxygen - free high - conductivity copper having sector-shaped portions 16, 17, &c. of selenium copper alloy defining resonant slots 25, 26, &c. Each lead 45 to the central cathode 33 passes out through a casing 47, a quarter wave-length filter sleeve 53 being supported round the cathode lead by a ring 61 which holds the annular flange 64 of the sleeve against the shoulder 65, being soldered as at 63. Section 53 may be integral with ring 61, as in Figs. 4 and 5 (not shown), and of silver- or copper-plated " Kovar " (Registered Trade Mark). Alternatively the casing 47 and ring 61 may be integral, with the flange 64 of sleeve 53 secured therein. The coupling terminal 35 has its inner copper end fixed in a recess 34 in a magnetron segment and passes out through a boss 39 upstanding from the casing, to which is attached a casing 36 having a threaded flange 38 for a coaxial cable coupling. The outer tungsten end of terminal 35 is centred by a glass bead 41 in a " Kovar " cylinder 42, soldered via a steel ring 79 to the casing 36. The Specification as open to inspection under Sect. 91 also describes a method of manufacturing the magnetron in which the slots are milled in a cylindrical blank, Fig. 7 (Cancelled), which is then soldered within a cylindrical shell, and the central core drilled out. Alternative forms of magnetrons with sector-shaped slots are described. It is shown theoretically that slotted arrangements, as opposed to cylindrical cavities, permit a greater dimensional tolerance in manufacture. This subject-matter does not appear in the Specification as accepted.
Patent GB-252129-A (GB)
Title: Improvements in lubricating appliances
IPC: F16K35/02
Filed: 1926-03-18
Abstract: 252,129. Steenken, C., (known as Steenken, K.). May 16, 1925, [Convention date]. Locking - catches. - The flow of lubricant from a container b secured to the hub a of a velocipede wheel is controlled by a screw valve g, in a slot in the upper part of which is arranged a movable key i having wings k adapted to engage slots l in the rim of the valve housing e. Bv raising the key clear of the slots l, the valve mav be adjusted. and, by lowering the key so that the wings k engage the slots, the valve is locked in adjusted position. A cap d normally holds the key in the locking position. A pin r prevents complete withdrawal of the key from the slot in the valve.
Patent GB-1380421-A (GB)
Title: Apparatus to separate close-fitting articles
IPC: B21C45/00
Filed: 1971-03-23
Abstract: 1380421 Tool for extracting sleeves NATIONAL RESEAR3H DEVELOPMENT CORP 13 March 1972 [23 March 1971] 7579/71 Heading B4C [Also in Division B3] To separate two close fitting articles, such as a tube 7 which has been formed on a mandrel 6, or a cup from a deep-drawing die, one of the articles is anchored, the other is urged in the intended direction of separation, and a vibration force is applied to one of them to reduce the frictional forces between them. In an example, the end 5 of the tube is clamped by jaws 3 while the tube 7 is urged to the left by units 2. The jaws are clamped to a support 5a and connected to a conical acoustic intensifier 9 and a transducer 10 which generates mechanical vibrations Guides 11 help to locate the jaws 3. The transducer creates standing longitudinal waves in the articles, the nodes of vibration being movable along the articles by " sweeping " the frequency of vibration of the transducer.
Patent GB-261971-A (GB)
Title: Improvements in mechanism for the interconversion of reciprocating and rotary motion
IPC: F16H23/10
Filed: 1926-03-18
Abstract: 261,971. Crankless Engines, Ltd., Michel!, A. G. M., Postlethwaite, J. P., and Smith, T. March 18, 1926. Swash-plate linkages.-In swash-plate mechanism of the type described in Specification 118,098, in which reciprocating members coact with a slant or oblique disc, two or more distinct guide members are provided to take up the forces imposed by the slant upon each reciprocating member in radial and tangential, directions. The radial forces are taken up by bearing surfaces 6, 8. Figs. 1 and 2, or universally pivoted bearing shoes 6<a>, 8<a>, Fig.. 5, on the yoke member 1 cooperating with guide surfaces, provided by the cylindrical periphery 5 of the slant 2, and the inner surface 7 of the engine &c. casing respectively. Independently thereof, tangential or transverse forces are taken up by a tie link 9. Fig. 2, slidable upon a fixed guide rod 13 and pivoted to a pin 10 on the yoke. Alternatively. an arm 9<a> on the yoke may be articulated to the guide sleeve 12<a> as shown in Fig. 5, end play of the joint pin 14 being allowed to avoid radial constraint. The connection to the sleeve 12<a> may be slightly to the rear of the centre to obtain wedge film lubrication. In an arrangement adapted to take up forces in one direction of rotation only, the link 9<a> is provided with a pivoted bearing shoe adapted to co-operate with a plane surface. Fig. 13 shows a, modification in which the yoke consists of a pair of links 20<a>, and blocks 19<a>, 19<b> rigidly attached to the ends of a pair of piston rods 15, 15<a> carry bearing- shoes engaging the faces of the slant, the cylindrical surfaces of side members 2<a>, 2<b> secured to the slant, and the casing surface 7.
Patent GB-307465-A (GB)
IPC: C08L95/00
Filed: 1929-03-08
Abstract: 307,465. Winkler, K. March 8, 1928, [Convention date]. Bituminous compositions. - To pitches, tars, bitumens, artificial or natural asphalts is added 5 per cent or more drying oils such as linseed oil or wood oil or mixtures thereof, which have been thickened before addition by boiling with 2 to 5 per cent metal oxides such as iron oxide, chromic oxide, lead oxide, manganese oxides, with or without borate, &c., which may be partly replaced by sulphur, sulphur chloride or a mixture of both with or without camphor or phenol or both. 7 to over 15 per cent mineral or organic fibrous material such as asbestos or cellulose may be added. Fillers such as sand, lime, dolomite lime, cement, gypsum, magnesite, slag, clay, alumina, kieselguhr and silicas, coke dust, sulphur, particularly titanium compounds, and similar substances of mineral and organic nature may be added. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition to the original asphaltic material of metal oxides, of metalloid compounds, of untreated drying oils, or of fibrous material. This subject-matter does not appear in the Specification as accepted.
Patent GB-365862-A (GB)
Title: Improvements in or relating to school desks
IPC: A47B41/04
Filed: 1931-03-12
Abstract: 365,862. Desks. HEYWOOD, Ltd., J., 121, Deansgate, Manchester, MASON, J. H., 14, Trafalgar Road, Pendleton, near Manchester, and FOX, L., 46, Estcourt Avenue, Headingley, Leeds. March 12, 1931, No. 7599. [Class 52 (iii).] A blackboard comprising a flexible writing surface 10 rolled upon parallel rollers 9 in a frame 8 and presenting a flat writing surface is mounted upon a desk 18 so that it can be erected upon the top of the desk for use, or can be moved into a vertical position to leave the top of the desk clear. The frame 3 is hinged to a baseboard 13, and is held in inclined position for use by hinged struts 14 engaging racks 15 in the baseboard 13, additional struts being provided for varying the inclination. The frame 8 is capable of sliding into a vertical position behind the desk, and for this purpose the baseboard.13 is formed with projecting ledges 21 engaging in grooves 22 formed in uprights 19 attached to the legs 20 of the desk ; a catch 26 holds the frame 8 locked in its lowered position on the baseboard 13. The baseboard 13 carries a hinged flap 24 having a stop 25, which engages a shelf 28 fitted to the desk and serves to limit the extent to which the frame may be raised. An inner frame 29 is placed on the frame 8, being held in position by screws on the frame 8 engaging in keyhole slots in the frame 29 ; a cut-away part 34 serves to allow chalk particles to be deposited in the frame.
Patent GB-1287533-A (GB)
Title: An arrangement for attaching a toolholder to an operating spindle
Inventor: HOLZL HORST
IPC: B23C5/26
Filed: 1971-03-23
Abstract: 1287533 Chucks KARL HULLER GmbH 23 March 1971 7666/71 Heading B3B An arrangement for attaching a tool-holder 30 to an operating spindle 16 comprises providing an annular collar 40 on the tool-holder 30 which has an annular frusto-conical bearing surface 42 tapering towards the spindle and an annular flat bearing surface 44 perpendicular to the spindle axis and facing the spindle, and the spindle 16 having a frusto-conical seating surface 50 and a flat seating surface 52 against which the said frusto-conical and flat bearing surfaces of the tool-holder are respectively held simultaneously. The two pairs of engaging surfaces 42, 50, 44, 52 engage completely by means of plastic deformation and by providing that the axial lengths of the frusto-conical surfaces are only a fraction of the mean radius thereof, e.g. 1/3. The taper of the frusto-conical surfaces is in the range 1 : 4 to 1 : 15, preferably 1 : 7. The tool-holder 30 is retained in the spindle 16 by a spring stack 38 acting on a draw-bar 36 to engage a head 34 with the tool-holder. A cover 60 protects the engaging surfaces 42, 50, 44, 52.
Patent GB-1245696-A (GB)
Title: Improvements in or relating to reciprocating dispenser pumps
IPC: F04B53/10
Filed: 1969-02-12
Abstract: 1,245,696. Reciprocating dispensing pumps. ACU-TECH CORP. Feb.12, 1969 [Feb.21, 1968], No.7700/69. Heading F1A. In a liquid dispensing pump mounted on a container 24 a valve member 38 is frictionally engaged by a rod 42 connected to the pump actuating push button 43 to alternately close the outlet passage 33 of a valve chamber 32 and permit passage of liquid into the pump cylinder 20<SP>A</SP> via slots 41 formed in the chamber walls in a first position, and to seat on the intake seating 39 and open the outlet passage 33 in a second position, Fig.4 (not shown). The push button has a sleeve 43<SP>A</SP> forming a piston slidable in the pump cylinder 20<SP>A</SP>. As shown in Fig.3, openings 48 formed in hollow ribs 47 of the pump cylinder permit passage of air into the container and in the fully raised position the push button 43 can be rotated so that the openings are closed by a ball shaped protruberance 50 formed in the upper surfaces 45<SP>A</SP> of recesses formed in the push button. In this position the push button is locked in position by a stop 51, Fig.10 (not shown) projecting inwardly from the outer wall of slots (49) formed in the push button.
Patent GB-1424273-A (GB)
Title: Electrical protection system
IPC: H02H5/04
Filed: 1973-02-16
Abstract: 1424273 Protective arrangements MICRO DEVICES CORP 16 Feb 1973 [24 Feb 1972 8 Jan 1973] 7792/73 Heading H2K A protective system, e.g. for an electric cooker, comprises thermally activated devices, e.g. fuses 36, 37 or thermally actuated circuitbreakers, for opening supply conductors 12, 13, branch leads 56, 57 connected to these conductors and containing heating elements 52, 53 for operating the devices when switch means, such as an SCR 48, connects the branch leads to earth, and control means for the switch means which is responsive to a predetermined fault condition. As shown, earth fault current from a sheathed heating element 15 or 16 of a cooker flows through the primary winding 42 of a transformer 43. This induces current in the secondary winding 44 to render the SCR 48 conductive. Current then flows through the heating elements 52, 53 which heat the fuses 36, 37 causing them to melt. Instead of responding to earth leakage, the control rectifier may be triggered by temperature responsive devices when the oven temperature becomes excessive both in normal use and when burning off, Figs. 2, 3 (not shown). In a further arrangement, Fig. 4 (not shown), the rupture of a conductor in a glass or ceramic cooker top due to breakage of the top causes the controlled rectifier to conduct.
Patent GB-645383-A (GB)
Title: Improvements relating to compressed air braking apparatus
IPC: B60T8/18
Filed: 1948-03-16
Abstract: 645,383. Fluid pressure brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. March 16, 1948, No. 7830. Convention date, March 17, 1947. [Class 103 (i)] A compressed air braking system for vehicles of the kind in which the degree of braking effected is arranged to be automatically varied in accordance with the load on the vehicle, is characterized in that a load responsive pressure control device 11 is provided for each axle of the vehicle, the pressure of air supplied to the brake cylinder 4 being controlled by the device 11 for the axle carrying the lesser load. As shown in Fig. 1, the system comprises the usual auxiliary reservoir 2 and triple valve 3, the air supply 8 from which is connected to the brake cylinder 4 through a relay valve device 5 instead of directly as is usual. The relay valve 5 includes a valve member controlling the supply of fluid pressure from pipe 8 on through pipe 46 connected to the brake cylinder 4. The valve member is governed by the movement of a diaphragm assembly subject to the pressures in chambers connected by pipe 9 to the supply pressure and by pipe 10 to one or other of the devices 11 and in a third chamber open to atmosphere. The device 5 thus passes on to the brake cylinder 4 a pressure dependent on the control pressure transmitted by pipes 22, 23, member 26 and pipe 10, the devices 11 operating in accordance with the load on each wheel transmitted by levers 14, 18, 19 pivotally connected to the spring mountings. The valve member 26, as shown in Fig. 2, includes a double check-valve element 27, 28, 29, which ensures that the relay valve 5 is connected only to that control device 11 associated with the less loaded axle. The air supply to the control devices 11 passes through pipes 39, 41 and 21 branched off the connection 46 to the brake cylinder 4. A regulating device 33 is interposed between pipes 39 and 41, which as shown in Fig. 3, comprises a valve element 34, which opens at a certain minimum pressure in the chamber 38, dependent on the setting of the spring 35, so as to provide a large flow connection between pipes 39 and 41 by passage 40. The device 33 ensures that a certain minimum pressure is rapidly built up in the cylinder 4, sufficient to move the brake shoes into contact with the wheels on each brake operation, before the load-sensitive devices 11 become operative to influence the working of the relay valve device 5.
Patent GB-779855-A (GB)
Title: Improved apparatus for the conveyance more particularly of pourable materials
IPC: B66F9/19
Filed: 1956-03-13
Abstract: 779,855. Skips for engagement by fork trucks. STAHLWERKE BRUNINGHAUS GES. March 13, 1956 [May 28, 1955], No. 7832/56. Classes 78 (3) and 78 (4). A skip 2 is supported on the tines 7 of a fork truck by arms 4, pivoted at 3 to the sides 1 of the skip and provided with hooked end portions 6 engaging the tines 7. A pawl 5 pivoted on one arm at 12 and normally pressed into a notch in the skip side by a spring is released by a handle 14 to tip the skip.
Patent GB-1391172-A (GB)
Title: Condensation product
IPC: C07K17/08
Filed: 1974-02-21
Abstract: 1391172 Resin-bonded albumin L GIVAUDAN & CIE SA 21 Feb 1974 [22 Feb 1973] 7934/74 Heading A5B [Also in Division C3] Beef serum albumin is bonded to a resin carrier which is a diazotized condensate of m-phenylene diamine and glutaraldehyde by passing it in a phosphate buffer solution over the particulate resin.
Patent GB-472234-A (GB)
Title: Improvements relating to gauging, measuring, setting, and like instruments or devices
Filed: 1936-03-17
Abstract: 472,234. Gauging - devices. HIRST, C. March 17, 1936, Nos. 7967, 29870, and 35239. [Class 83 (iii)] [Also in Group XIX] A gauging, measuring, or setting instrument comprises a member in which is held a row of balls or rollers constituting unit of length, in contact with one another and in unbroken peripheral contact with the member in which they are mounted, a further member mounted for movement on the first having a plunger longitudinal movement of which penetrates the first member between the lines of contact therewith of the balls and holding the second member in one of a plurality of positions relatively to the first. A base a has end brackets b, c which receive the ends of a reference bar d clamped at one end by a bolt e. A keepplate f prevents turning of the bar. A head g slides on the bar and is supported by raised ways h, i on the casting. Anvils j, k are fixed to the head g, the latter co-operating with a micrometer head m. The reference bar is tubular and receives balls n held in the tube by end plugs o in alignment with holes or slots p. The sliding head has a flat plunger r provided with a hole's into which enters a crank-pin t on a disc on a spindle u turned by a handle v. The bush u<1> is screwed down to lock the disc and plunger. The latter has two teeth which enter through holes p in the bar and engage opposite sides of a ball. This plunger thus positions the slide and the anvil k will in any position be a positive number of units from the anvil of the micrometer in its zero position. Fractions of a unit are measured on the micrometer. A fitting x, Fig. 4, may be clamped to the bar with one anvil y in engagement with the micrometer, whereupon the other anvil z may be used to co-operate with the anvil j for inside measurements. The plunger may have only one projector which may have a V-shape or other shape to engage between two balls. The balls may be replaced by rollers engaging by their peripheries or by their ends which may be coned. In one form, the bar is placed in a carriage which may be adjustably clamped in a machine bed. The slide is provided with a dial indicator the plunger of which engages one anvil of a second slide adjustable on a parallel bed a second anvil on the slide engaging the micrometer.
Patent GB-427670-A (GB)
Title: Improvements in or relating to tagger top tins
Filed: 1934-03-14
Abstract: 427,670. Tagger-top tins. ROBINSON, F., Canister Works, Southcoates Lane, Hull. March 14, 1934, No. 8015. [Class 66] The tagger-top 1 of a tin is recessed into the mouth to enable a plug lid 3 provided with a radially - adjustable cutter 5 to be fitted, and is further recessed centrally at 4 to accommodate the cutter when in the retracted position. An annular guide groove 6 for the cutter may be provided at the edge of the tagger, which may be formed with a central filling aperture adapted to be closed by a depending part of the lid.