baber/WOPTO huggingface dataset:
Patent GB-1503860-A (GB)
Title: Sand blasting machine with self-feeding apparatus
IPC: B24C7/00
Filed: 1976-06-18
Abstract: 1503860 Blasting SINVA SpA 18 June 1976 25337/76 Heading B3D A sand blasting machine comprises a cylindrical reservoir 1 for abrasive material having a lower portion connected by a duct 2 including a valve 3 to a line 4 leading to an ejector nozzle, the upper portion of the reservoir being integral with a tubular member 5 connected at its upper end to an annular member 6 accommodating a toroidal gasket 7, and an L-shaped duct 8 fitted within the tubular member and having a vertical portion housing a mushroom-shaped valve 9 which co-operates with the gasket. The member 6 is connected to the lower portion of a second cylindrical reservoir 10 which has a horizontal sieve 11 and is connected at its upper part to a second tubular member 12, the upper end of which is secured to a second annular member 16 accommodating a toroidal gasket 13, an L-shaped duct 14 being fitted in the member 12 and having a vertical portion housing a mushroom-shaped valve 15 for co-operation with the gasket 13. The member 16 is connected to a silo containing abrasive material. A compressed air duct 18 leads to a pilot valve 17 which controls the air supply to the line 4 leading to the nozzle, the duct 8, and a line 19 connected to an inlet valve 20, an automatic discharge valve 21, and a filter 22 leading to the duct 14 and a manual discharge valve 25. The pilot valve 17, inlet valve 20 and automatic discharge valve 21 are connected to a timer controlled pneumatic distributor 23, and the pilot valve is also controlled by a remote control on the nozzle connected to the valve by a pipe 24. When the pilot valve is opened, compressed air is supplied to the line 4, the duct 8 so as to close the valve 9 and pressurize the lower reservoir 1, and the duct 19, the timer controlled valve 20 being simultaneously operated to effect closure of the valve 15 and thus pressurize the upper reservoir 10. When the pressure in the upper reservoir reaches that in the lower, the valve 9 opens so that abrasive material passes from the upper to the lower reservoir. After a preset time, the valve 20 closes, valve 21 is opened to discharge air from duct 14 so that valve 15 opens to admit abrasive material to the upper reservoir until, after a further preset time, valve 20 re-opens and valves 21 and 15 close. The operation of the machine may be stopped at any time by actuation of the valve 17 by the remote control on the nozzle.
Patent GB-909729-A (GB)
Title: Tool ejecting device for freeing tools inserted into the end of the spindle of a drilling machine
IPC: B23B31/06
Filed: 1960-07-21
Abstract: 909,729. Chucks. SCHARMANN & CO. G.m.b.H. July 21, 1960 [Aug. 10, 1959], No. 25419/60. Class 83 (3). In a machine tool a tappet projects rearwardly through a sleeve 8 movable with a tool spindle 1, la and a magnetically-operable hammer 14 is provided for striking the tappet to release a tool 21 in the spindle. The drill has a tapered shank 21 through which is passed a driving key 41 secured by a nut 51.
Patent GB-866214-A (GB)
Title: Electrical digital computing engines
Inventor: STRINGER JOHN BENTLEY
IPC: G06F7/52
Filed: 1957-08-13
Abstract: 866,214. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 7, 1958 [Aug. 13, 1957], No. 25589/57. Class 106 (1). In electrical binary multiplying apparatus, including a serial adder, more than one newly formed product of the multiplicand and a multiplier digit are fed at one time to the adder. As described, loop stores including delay lines MCD, MPR and PR store the multiplicand and multiplier (each of 48 bits) and a double-length product respectively. Groups of 4 consecutive multiplier digits are successively staticized on bistable trigger devices (Fig. 5, not shown) in circuit S. The devices control gates 1-4 to pass the multiplicand, multiplied by corresponding powers of 2, through one-digit delays 6-8, to the adder 5 which thus receives, during each of 12 multiplication cycles, partial products of the multiplicand and 4 of the multiplier digits, plus the accumulated partial product from PR. As illustrated in the detailed circuit diagram (Fig. 5, not shown), the line PR is split into two 48-bit sections (PRA, PRB) one of which (PRB) acts also as the multiplier store (MPR). During each multiplier cycle, the first 4 sum digits from the adder are passed to section PRB, and the remaining 48 digits are passed to section PRA for return to the adder during the next cycle. Arrangements for multiplying negative numbers are included, the multiplicand being subtracted by complementary addition for a negative sign digit in the multiplier. The 5- input adder may be as described in Specification 866,215. Specifications 727,114, 718,901 and 718,895 also are referred to.
Patent GB-761987-A (GB)
Title: Process for preparing sulphurised carene, and lubricating oil compositions containing the sulphurised carene
Inventor: MAUCHAN ALEXANDER GALLANDER
IPC: C10M135/04
Filed: 1953-09-16
Abstract: Sulphurized carene is prepared by heating carene (including commercial carene) with elemental sulphur.  The carene may be heated at from 100 DEG  to 165 DEG C. with from 1 to 3 atoms of sulphur per mol. of terpene, if desired in the presence of a sulphurization catalyst such as mercaptobenzthiazole, tetra-methyl thiuram disulphide and diphenyl guanidine which may be used separately or together.  Preferably, the reaction is effected in a diluent.  The product, after removal of residual H2S by, for example, blowing with an inert gas still contains corrosive sulphur and to reduce the resulting corrosivity the product may be washed with strong caustic alkali or treated according to the methods of Specifications 688,293, 703,631, 750,094, 761,579 and 761,997.ALSO:Lubricating oil compositions comprise sulphurized carene obtained by heating carene (including commercial carene) with elemental sulphur (see Group IV(b)).  The oil base may be a mineral oil or a synthetic oil, e.g. of the ester or complex ester type.  Reference is made to the use of the sulphurized carene in gear oil, cutting oils and motor lubricating oils. Viscosity-index improvers, pour-point depressants, sludge-dispersant additives, corrosion inhibitors and detergent additives such as alkaline earth alkyl phenol sulphides and alkali metal or alkaline earth oil-soluble salts of petroleum sulphonic acids may also be present.  An example is given.  Specifications 688,293, 703,631, 750,094, 761,579 [Group IV(b)] and 761,997 are referred to.
Patent GB-730763-A (GB)
Title: Culture medium
Filed: 1953-09-16
Abstract: Bismuthyl heptahydroxy decasulphite (probably 3(BiO)2SO3; 7(BiOH)SO3; 10H2O) is obtained by adding 0.05 mol. of bismuth nitrate in nitric acid to 0.15 mol. of an aqueous solution of sodium sulphite.  In stirring the compound is precipitated.  Bismuthyl trihydroxy pentasulphite (probably 2(BiO)2SO3; 3(BiOH)SO3; 2H2O) is obtained by adding the same amount of nitrate solution to 0.20 mol. of the sulphite solution.  Two other compounds are obtained by increasing the amount of sulphite solution to 0.25 mol. and 0.30 mol. respectively, the ratio of Bi atoms to sulphur being 8 to 5 in the first, and 15 to 10 in the last.ALSO:A culture medium for the isolation and diflerentiation of the species of the genus Candida comprises a bismuthyl polyhydroxy polysulphite made by reaction of an inorganic bismuth salt and sodium sulphite in whole number molecular ratio in the range 1 to 3 to 1 to 6, ingredients essential to the growth of yeasts, and a solidifying agent.  The ingredients essential to growth are supplied by a nitrogen source e.g. an inorganic ammonium salt or glycine; an energy source e.g. sugar or sodium pyruvate; phosphorous source e.g. an organic phosphate or yeast extract; vitamins and minerals.  Solidifying agents specified are agar, and a neutral cellulose e.g. methyl or ethyl cellulose. Specified bismuth salts are bismuthyl heptahydroxy decasulphite and bismuthyl heptahydroxy decasulphite and bismuthyl trihydroxy pentasulphite.
Patent GB-1433112-A (GB)
Title: Driving linkages for reciprocating the slides of mechanical  presses
IPC: B30B1/26
Filed: 1974-06-10
Abstract: 1433112 Presses US INDUSTRIES Inc and HITACHI SHIPBUILDING & ENG CO Ltd 10 June 1974 25676/74 Heading B5F [Also in Division B3] A drive linkage for the slide 7 of a press, e.g. a metal drawing press, has a toggle linkage 8a, 8b whose pivot 9 is connected by a link 15 to one arm 13 of a bell-crank lever whose other arm 11 is pivoted to a pair of parallel links 10 on a pair of eccentrics. A larger eccentric 6 is provided between the eccentrics to drive the toggle linkage 8a, 8b. The resultant slide reciprocation produces a relatively slow approach to lower dead centre and a fast return to top dead centre.
Patent GB-1043168-A (GB)
Title: Improvements in or relating to turbo-compressors
IPC: F04D27/02
Filed: 1963-06-27
Abstract: 1,043,168. Boundary layer control in compressors. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. June 27, 1963 [June 29, 1962], No. 25682/63. Heading F2R. Openings are provided in the walls of a diffuser section of a turbo-compressor and suction is applied to them to prevent separation of the boundary layer. Annular slots 14, 15 may be provided in the diffuser walls 56 (Fig. 2, not shown), connected, through control valves 31, to the impeller inlet in the region of guide blades 30 (Fig. 3, not shown) and to the impeller outlet. The slots, i.e. the direction of flow through them, may be inclined at 45 degrees to the diffuser axis, and they may be replaced by two annular rows of slots (Fig. 6, not shown). The slots may be in diffuser blades of a radial flow compressor (Figs. 9 and 10, not shown), and in the case of an axial flow compressor, additional slots may be located between stages.
Patent GB-386602-A (GB)
Title: Improvements in change-speed gears for bicycles
IPC: B62M25/00
Filed: 1932-09-15
Abstract: 386,602. Variable-speed driving- mechanism for cycles. HAUPT, O., 23B, Hainstrasse, and KOPPENBURGER, F., 23, Ruststrasse, both in Leipsic, Germany. Sept. 15, 1932, No. 25690. [Class 136 (ii).] Change-speed driving mechanism for bicycles comprises a casing containing the change-speed gearing and the changing elements and adapted to be attached to the cycle frame near the rearwheel hub, the terminal wheels of the changespeed gearing being situated outside the casing and adapted for permanent driving connection, one with the sprocket wheel on the pedal shaft, and the other with the rear hub or its freewheel drive. The change-speed gear casing e is attached to the chain stay f on the outside near the rear hub, and contains gearing of the spur-wheel type (as shown) or of chain type, one terminal wheel c of which is a sprocket wheel connected by the usual chain b to the pedal shaft, while the other terminal wheel drives a wheel r on the rear hub. The gear is changed by means of a bolt adapted to slide in a hollow shaft d and provided with dogs for clutching one or other of two loose gear wheels h, i to the shaft, these wheels meshing with wheels k, l fixed to a shaft m having a wheel (not shown) arranged outside the casing e to gear with the wheel r. In a modification, the transmission is effected through chains and sprocket wheels both inside and outside the casing e.
Patent GB-608045-A (GB)
Title: Improvements in and relating to devices for removing closures from bottles and the like
IPC: B67B7/44
Filed: 1946-11-04
Abstract: 608,045. Wrenches. AUSTIN, G. Nov. 4, 1946, No. 25796/45. [Class 61 (iii)] [Also in Group XVII] A device for removing bottle &c. closures comprises in combination a body portion 2, a pair of abutments 5, a gripping element 8, eccentrically pivoted at 8a to enable the distance between its gripping edge and the abutments 5 to be varied to provide therewith a three-point contact with a plug or screw-type closure, a sheath 18 detachably receiving an end part of the body 2, an arm 10 pivotally mounted on the sheath 18, a cutter blade, beneath a knob 12, mounted on the arm 10, and a tractor wheel 17 mounted on the sheath 18 and co-operating with the blade to cut open can ends. A crown cork remover 7, a leverlid remover 15 and a cork-screw 19 are preferably included. Recesses 16 are also provided for removing closures with flat projections in them. The handle part 3 of the body part 2 is bifurcated at 14 to provide an opener for a can furnished with a tab or tongue of weakened metal, the bifurcated end 14 being wedged into the sheath 18 when not in use.
Patent GB-425554-A (GB)
Title: Improvements relating to files for letters or documents
IPC: B42F7/08
Filed: 1933-09-18
Abstract: 425,554. Filing papers. EAST, T. G., 10, Melcombe Court, Dorset Square, Regent's Park, London. Sept. 18, 1933, No. 25818. [Class 146 (i)] A file especially for sorting letters and documents comprises a number of folders arranged side by side and terminal walls at either side, connected together and so formed that they are independently selfsupporting and stand erect to hold the folders open for the reception of the documents to be sorted or filed. Folders a are united at the top to each other by strips b and at the bottom to the troughs in a folded fabric backing d by strips c. At either end the folders are secured to double terminal walls e which are united at the upper edges and joined by extensions f of the fabric backing d at the lower edges. The terminal walls may be splayed to enable the file to stand upright by metal levers g, which pass through apertures in the walls and have slots j engaging with tongues in metal plates b. The inner ends of the levers run on bearing plates k. A flexible wire, preferably a helix l, is secured at one end m to one terminal wall, and at the other end passes through a fitting p, which may comprise an elbow tube or a series of rings, by which it is turned inwards across the inner or outer face of the other terminal wall so that, when the file is in the closed position, the wire l may be stretched slightly and secured to one of a number of hooks, thus holding the contents under pressure. The edges of the folders may be cut away and provided with wire bars running down the edge and secured by adhesive tape so as to form guides for the wire l, which may be provided with a button at the end to engage in a bayonet slot in the terminal wall. Alternatively the wire l may be replaced by tied or buckled tape.
Patent GB-632445-A (GB)
Title: Improvements relating to nickel alloy castings
IPC: C22C19/05
Filed: 1947-09-23
Abstract: An alloy, particularly suitable for castings for use at elevated temperatures, has the following composition: Ni 45.0-55.0 per cent; Cr 17.0-23.0 per cent; Nb 0.25-1.0 per cent; Ti 0.05-10.5 per cent; Ca 0.01-0.04 per cent; C 0.3-0.6 per cent; Si 0,-1.5 per cent; Mn 0,-1.0 per cent; Fe, together with impurities, the balance.  The casting may be solution-heated to a temperature of at least 1200 DEG C., cooled rapidly to below 815 DEG C. and age-hardened at between 700 and 870 DEG C.  Two age-hardening treatments may be given, the second being at a higher temperature than the first.  Specification 583,212 is referred to.
Patent GB-279812-A (GB)
Title: An improved process for the production of the cyanamides of calcium and magnesium
IPC: C01C3/16
Filed: 1927-09-30
Abstract: 279,812. Caro, N., and Frank, A. R., (Assignees of Stickstoffwerke Ges.). Oct. 28, 1926, [Convention date]. Calcium and magnesium cyanamides are prepared by passing hydrocyanic acid gas which may be diluted with inert gases or ammonia over the heated oxides, carbonates or oxide-forming salts. Temperatures above 600 C. and preferably 700- 800 C. in the case of calcium compounds, and above 400 C. and preferably 650-750 C. in the case of magnesium compounds are used.
Patent GB-1503210-A (GB)
Title: Loading and unloading heavy loads on vehicles
IPC: B60P1/64
Filed: 1975-06-18
Abstract: 1503210 Container traffic; vehicle loading hoist A MENZL 18 June 1975 25904/75 Headings B8Q and B8E A vehicle 1 has a load surface 3 having longitudinal rails 2 on which run interconnected frameworks 6 upon which a loading frame 16 is movable to engage and lift a building module 26 or a container. The members 7, 8, 9 of the frameworks are pivotally connected at 10, 11, 12 and their shape can be altered by a knuckle 13. The leading end of the module 26 is positively secured to the frame 16 by elements 27 screwed into a sleeve 28 connected to the reinforcing iron 29 while a container can be secured by means 30, 31, 32. The frame 16 runs by wheels 17, 18 on the frameworks 6 while wheels 19 run on raisable extension guideways. To unload the module from the Fig. 1 position the knuckle 13 is contracted to tilt the module up off the surface 3 and a ram is operated to move the frameworks 6 to the Fig. 2 position in which the frame 16 can be lowered under the control of a ram or a brake. Loading may be by a reverse process or other means. Rams are also provided to orientate the module as it is lowered while bearing plates 33 support the rear of the vehicle which may additionally be counterweighted at the front. The rails 2 may be extended alongside the cab 37 to allow the frameworks 6 to move further forward. A container may be supported on legs in the raised Fig. 2 position.
Patent GB-783929-A (GB)
Title: A method of shaving gear wheels
IPC: B23F23/12
Filed: 1955-09-12
Abstract: 783,929. Gear-finishing. SCHIESS AKT.- GES. Sept. 12, 1955 [Sept. 11, 1954], No. 25958/55. Class 83 (3). A gear-hobbing machine wherein the angularly-adjustable hob mounting 5, Fig. 1, is replaced by an angularly-adjustable shaving- tool base plate 9, Fig. 2, comprises a shaving tool S mounted for adjustment angularly and radially of the work, as by an inclined guide 17. The tool S is adjustable angularly on the guide 17, which is traversed by a motor 14 and screw 13 for diagonal-traverse shaving. Specification 761,294 is referred to.
Patent GB-408875-A (GB)
Title: Improvements relating to cylinder heads of internal combustion oil engines
IPC: F02B3/06
Filed: 1933-09-20
Abstract: 408,875. Cylinders. GARDNER & SONS, Ltd., L., and GARDNER, J. H. S., Barton Hall Engine Works, Patricroft, Manchester. Sept. 20, 1933, No. 25971. [Class 7 (ii).] A plate a, having valve seats formed therein, which is clamped between a light metal cylinder head and the block, is held, during manipulation prior to assembly, by a bushing k, for the liquid-fuel injection device, the bushing being pressed or screwed into the plate which is preferably made of a hard bronze alloy. The plate is located by a grub screw f<1>, or by arranging the bushing k eccentrically. It may extend over the whole block and have holes through which the cylinder head retaining studs pass.
Patent GB-362488-A (GB)
Title: Improvements relating to electrical supply systems
IPC: H02J7/14
Filed: 1930-09-01
Abstract: 362,488. Charging and discharging batteries ; supplying consuming devices. BURN, L., Victoria House, Southampton Row, London. Sept. 1, 1930, No. 26064. [Class 38 (iv).] To enable a load L to be supplied at a constant voltage irrespective of the difference between the discharge and the charging voltages of a battery, the battery is divided into two parts B, C such that the voltage of the whole in discharging. is equal to the. load voltage, whereas the difference between the voltages of the parts B, C when charging is also equal to the load voltage. The generator voltage is equal to the charging voltage of the part B of the battery and the part C of the battery is charged in series with the load so that its. voltage is opposed to that of the generator A when both load and generator are operative. The change of connections may be automatically effected by a cut-in switch E which may directly control switching means G, H or energize a solenoid S operating those means as shown. A variable resistance. R in parallel with the section may be provided to adjust the voltage applied to the load. A starter motor Q may be arranged in parallel with the main battery section.
Patent GB-822778-A (GB)
Title: Dentifrices
Inventor: PUGH CLIFFORD
IPC: A61K8/67
Filed: 1957-08-19
Abstract: A dentifrice contains a minor proportion of a water-soluble salt of nicotinic acid, such as an alkali metal salt, e.g. sodium or potassium and calcium, and/or an ester of nicotinic acid, e.g. methyl or n-heptyl.  The dentifrice may include a surface-active compound, such as soap, sodium lauryl sulphate and sodium lauryl sulphoacetate, an abrasive, such as calcium carbonate, calcium sulphate, aluminium hydroxide, sodium metaphosphate, dicalcium phosphate, and colloidal silica, a binder, such as carboxymethyl cellulose, gum tragacanth, sodium alginate, and Irish moss, and a humectant, such as glycerine, sorbitol and propylene glycol.  The dentifrice may be in the form of a solid, e.g. a block or powder, paste or liquid and the proportion of nicotinic acid derivative is suitably 0.05-5.0% and preferably 0.3-1.0% by weight of the dentifrice.  The nicotinic acid derivative may be formed in situ in the mix.
Patent GB-643355-A (GB)
Title: Improvements in or relating to methods of building and erecting structures, including buildings, hutments and the like
IPC: E04B1/344
Filed: 1947-09-26
Abstract: 643,355. Centering for buildings; building units. SMITH, G. V. Sept. 26, 1947, No. 26136. [Classes 20(i) and 87(i)] Buildings are erected by means of two hinged frames C in which two halves of the building are assembled or cast in concrete and the frames are then hoisted, for instance, by a crane, so that the two sections meet and are joined at the middle by cement pins &c. The frames may be used to erect the upper part or roof of the building, the frames being mounted on hinges E on walls F. The two halves of the building are temporarily attached to the frames by means of bolts or lugs. The building material may be hollow slabs of baked clay, breeze blocks, sheet metal, concrete, asphalt or synthetic resin impregnated paper blocks, cemented or pinned together. The halves of the building may be built up of several layers of hardboard or metal cemented together or of two layers of hardboard with parallel strips of wood or metal between. Glasshouses may be built by assembling the frames and glass panes in the frames C. An outer covering for the building may be laid in the frames before the building blocks and the interior rendering of the building may be done on the building sections in the frames before erection.
Patent GB-636067-A (GB)
Title: Improvements in or relating to guard devices for the protection of the propeller shafts in ships or the like
IPC: B63H1/20
Filed: 1947-09-27
Abstract: 636,067. Propeller guards. McLEAN, D. L. Sept. 27, 1947, No. 26231. [Class 114] A guard 21 formed in two or more segmental portions projects over the stern tube nut 27 and is secured to the propeller boss by screws 16 housed in recesses 15. The guard is keyed to the propeller boss.
Patent GB-518899-A (GB)
Title: Improvements in or relating to brackets for valances, curtain rails and the like
IPC: A47H1/124
Filed: 1938-09-08
Abstract: 518,899. Suspending curtains. POWELL, A. Sept. 8, 1938, No..26248. [Class 52 (v)] ] A support for rails for valances curtains, or the like of the kind in which two members are pivoted together so as to be clamped to a supporting I-beam or the like is characterised within that the valance rail when in position prevents pivotal movement of the bracket member a to open the clamping jaws.. Also an upturned stop q on one member engages the recessed edge of the other hook member h and a holder comprising a projection n engages a recess on the hook member to retain the cam in clamped position. The hook may be a pair of lugs h<1> bent from the member e<1>, Fig. 5, and an apertured lug or box-shaped end r may be provided to engage an additional support.