baber/WOPTO huggingface dataset:
Patent GB-396075-A (GB)
Title: Improvements relating to dynamos for motor vehicles
IPC: H02J7/16
Filed: 1932-01-28
Abstract: 396,075. Exciting dynamos; variablespeed generator systems. LUCAS, Ltd., J., LUCAS, O., and TURNER, E. O., Great King Street, Birmingham. Jan. 28, 1932, No. 2582. [Classes 35 and 38 (iv).] A vehicle dynamo is excited from a battery under the control of a switch until a predetermined speed is attained, whilst above that speed it is self excited and connected to the battery. In the form shown, the switch d being closed, the voltage of the generator rises due to its field winding b being excited from the battery c until it reaches that of the battery when the automatic switch e closes and the dynamo is self excited by the winding a. Separate excitation is resumed whenever the switch e opens, and when the engine stops the switch d is opened. The switch d may also be used to control an ignition circuit represented by the line g. In an alternative arrangement, the winding b is omitted and the winding a is connected between the third brush and the switch d with or without series resistances. Specifications 1079/05 and 313,496, [both in Class 35, Dynamo-electric generators &c.], are referred to.
Patent GB-758631-A (GB)
Title: Improvements in and relating to ultrasonic oscillators and vibratory tools
Inventor: BRADFIELD GEOFFREY
IPC: B06B1/06
Filed: 1952-01-31
Abstract: 758,631. Piezoelectric elements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 30, 1953 [Jan. 31, 1952], No. 2623/52. Class 40 (8). [Also in Groups XXIII and XXXV] A piezo-electric transducer comprises piezo - electric material (e.g. barium titanate with or without lead titanate) built into a plurality of elements each of lamellar form and having cross-ribs at least at both ends and on both sides, the ribs aiding in forming a stack of the elements leaving channels between adjacent elements, the part of the elements between the ribs being provided with electrodes and the length being equal to one half wavelength of the exciting frequency or an integral multiple thereof. As shown, each element 64 has ribs 65 at both ends and on both sides, a series of elements being cemented at the ribs and a metallized coating being formed on the parts between the ribs. Cooling may be performed by a blast of air. In a modification, Fig. 3 (not shown), an additional cross-rib is formed either at the centre of the length or displaced a little distance therefrom.
Patent GB-601314-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C33/10
Filed: 1945-02-02
Abstract: 601,314. Lubricating. TRIGGS, W. W. (Bliss Co., E. W.). Feb. 2, 1945, No. 2711. [Class 12 (iii)] In a journal bearing lubricant is supplied under pressure at a point behind the line of least separation between the journal and the bearing surface and external suction means are provided for withdrawing (under vacuum) oil at a point ahead of such line of least separation. This line of least separation varies with the load and speed and direction of rotation, but, as shown in Fig. 2, lies within the angle BOC between the 20 degrees and 80 degrees lines ahead of the load line AA. The point of maximum oil-film pressure in the crescent-shape space between the journal and the bearing surface will lie within the angle DOE 45 degrees ahead of the load line, while the point of minimum oil-film pressure will lie within the angle GOH between lines 125 degrees and 190 degrees ahead of the load line. A bearing for rotation in one direction has the oil supplied at a point 45 degrees behind the upward load line and withdrawn, by an external vacuum pump, at a point 150 degrees ahead of such line. For a journal 17 that may require to rotate in either direction, such as that of a rolling mill, a compromise is effected in that the points for the supply and for the withdrawal of oil are situated at 140 degrees from the vertical load line. Oil under moderate pressure is applied to a pipe-line 27 and passes through an appropriate passageway 30 or 29 of a four-way valve 25 to an admission point 20 lying 140 degrees behind, in the direction of rotation, the load line, oil being withdrawn from a point 20 lying 140 degrees ahead, in the direction of rotation, of the load line by an external vacuum pump through the appropriate passageway 29 or 30 of the four-way valve 25. The four-way valve 25 is automatically reversed when the main drive motor for the journal 17 is reversed. This is effected by a link connection 34 to a crank-arm 36 of a worm-wheel and disc 40 driven by a reversible electric motor 46. When a control panel 50 is set to give a clockwise direction to the mill journal 17 as shown by the arrow, a solenoid 60 is energized to close a contact 61 in the circuit to the disc-driving motor 46, which latter will rotate so long as a contact arm 52 is engaging a fixed contact 55 ; this contact arm is moved over by an abutment 56 on the disc 40 when the latter has made half a revolution and so placed the four-way valve 25 in proper position. When the control panel 50 is set to give a reverse drive to the mill journal 17, a solenoid 63 is energized to close a contact 62 which in conjunction with the contact arm 52 engaging a fixed contact 54 will give a reverse drive to the disc-driving motor 46 until, after half a revolution, an abutment 57 causes contact arm 52 to leave contact 54 and re-engage contact 55. Thus, the fourway valve 25 is set to proper position for reverse rotation of the mill journal 17.
Patent GB-268086-A (GB)
Title: Improvements in adjustable bands, bangles and the like for personal wear
IPC: A44C5/22
Filed: 1926-01-30
Abstract: 268,086. Whitehouse, A. Jan. 30, 1926. Bracelets, bangles, and like bands. -A bangle or band for personal wear comprises a flexible strip of metal or other material with its overlappings ends a, c mutually guided by guide loops a<3>, c<3> secured at their ends, the band being secured in adjusted position by an exterior hinged lever c<5> incorporated with the loop c<3> and adapted to bear directly on the adjacent face of the band. The bangle may be in two parts, as shown., having hooked ends a<2>, c<2> adapted to engage the loops of a wristlet watch e, and may have its surface patterned by engine turning to resemble a moire band.
Patent GB-433022-A (GB)
Title: Improvements in or relating to two-stroke cycle internal combustion engines
IPC: F01L5/06
Filed: 1935-01-28
Abstract: 433,022. Two-stroke engines; valves. KINETIC CYCLE RESEARCH CORPORATION, 17, John Street, New York, U.S.A.- (Assignees of Kahn, B. ; 17, John Street, New York, U.S.A.) Jan. 28, 1935, No. 2796. Convention date, Jan. 29, 1934. [Classes 7 (ii) and 7 (vi)] In a two-stroke engine, the means for reciprocating the sleeve valve controlling inlet and exhaust is connected to the valve at a point farther from the crank shaft than the inlet ports. Fig. 1 shows part of a radialcylinder engine having sleeve valves 17 controlling inlet ports 13 and exhaust ports 18, the rod 29 for operating the valve being connected thereto at its upper end 19. All the rods 29 are actuated by a grooved cam 27. As the sleeve valve and cylinder are attached at opposite ends, they expand in opposite directions longitudinally under heat, and thus increase the duration of opening of the ports. Fig. 7 shows the invention applied to cylinders in line, the sleeve valves, together with pump pistons 56, being reciprocated by cranks 50. These pistons pump air on one side and mixture on the other side to respective inlet chambers 59 and 60. The connection of the operating-mechanism to the sleeve may be about halfway along the sleeve, instead of at the top.
Patent GB-1242951-A (GB)
Title: Installation of sand drains
Inventor: GODLEY AUGUSTUS PEARCE
IPC: E02D3/10
Filed: 1969-01-17
Abstract: 1,242,951. Boring earth. RAYMOND INTERNATIONAL Inc. 17 Jan., 1969 [6 Feb., 1968], No. 2886/69. Heading E1F. A sand drain is formed by drilling a hole in the ground, introducing fluid into the hole, causing the fluid to move upwardly in the hole to wash spoil out from the top of the hole, and filling the hole with drain solids. In the embodiment shown the hole is drilled using a bit 16 on a hollow pipe 14 driven by motor 18. During drilling the spoil is flushed out by water pumped down pipe 14 through valve 30 in housing 22. After drilling valve 30 is moved to shut water supply from inlet 28 and to open sand inlet 26. The sand falls down pipe 14 aided by a water jet from nozzle 38 and fills the hole as the pipe is removed. In a second embodiment (Figures 6-13 not shown) there is a jet forming nozzle member positioned at the bottom of a non- rotary pipe and connected to a bi-conical valve member in housing 22. When the valve member closes the sand inlet and fully opens the water inlet, the nozzle member is in a position with respect to the pipe to form jets, while when the valve member opens the sand inlet and partially closes the water inlet the nozzle member is moved into a position to allow sand to fall out of the pipe. In a third embodiment the hole is drilled using a rotating jetting pipe having a paddle to keep the spoil in suspension. The paddle may have teeth on its outer edges to scratch the sides of the hole. After the hole has been drilled the pipe is quickly removed and a sand drain tube having a closed bottom inserted into the hole to cause the spoil in suspension to rise up the annulus .between the tube and the walls of the hole. The tube is then filled with sand and pressurized air fed to the tube to cause the bottom of the tube to be blown off. The bottom is composed of a wooden plate nailed to the tube. The tube is raised allowing sand to fill the hole.
Patent GB-372289-A (GB)
Title: Improvements in or relating to flexible couplings
IPC: F16D3/76
Filed: 1931-01-29
Abstract: 372,289. Universal joints. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Rosenberg, R. H. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) Jan. 29, 1931, No. 2951. Convention date, Feb. 12, 1930. Addition to 368,876. [Class 80 (ii).] In a flexible coupling according to the parent Specification, wherein there is an elastic member adapted, as the result of deformation due to axial mass tension, to exert a high radial pressure on torque transmitting surfaces at least one of which is curvilinear longitudinally of the axes, the mass tension of the elastic member 14 is greater in the region of its longitudinal centre than at other parts, when the axes are aligned. For this purpose the torque transmitting surfaces are nearer together at their centre than at their ends, and they may have different radii of curvature. Either member 12, 13 may be cylindrical, the other being curved, or a sleeve with tapering ends may be interposed between concentric members. The undesirable increase in mass tension of the rubber sleeve 14 consequent on angular deflection of the axes is thereby avoided, and the joint is self-centring.
Patent GB-137924-A (GB)
Title: Improvements relating to trunks, cases, boxes and the like
IPC: A45C5/02
Filed: 1919-02-07
Abstract: 137,924. Brooks, B., and Jenkins, A. H. Feb. 7, 1919. Materials, special, for boxes and trunks. - A trunk, case, box, &c. is formed of composite material comprising a corrugated sheet 1, Fig. 2, of aluminium or other metal faced with leather, fabric, &c. 5, the corrugations on one or both sides being filled with sawdust, bran, &c. impregnated with glue or other adhesive, or being filled with strips of wood, cardboard, &c. The composite material may comprise two corrugated metal sheets arranged as shown in Fig. 1, the corrugated sheets being secured together by rivets 2 or wire stitches.
Patent GB-1511214-A (GB)
Title: Electronic programmer
IPC: G05B19/10
Filed: 1977-01-25
Abstract: 1511214 Automatic control programmer ETABS CARPANO & PONS 25 Jan 1977 [9 Feb 1976] 03023/77 Heading G3N An electronic programmer includes an inte-  grated circuit 1 which contains a program store containing a plurality of programs the individual program required can be selected by operating switching means until the number of the desired program is displayed when a second switching means is operated to start the program. As shown, the integrated circuit 1 has 4 inputs and 19 outputs and includes address register 3 connected to a memory comprising RAM 8 and ROM 9 containing the individual programs P1-P8. An instruction decoding register 4, arithmetic unit 5 and the output from memory 2 are connected to an output network 6 which is connected, via interface 12 to controlled elements, displays AC, AP and to the switch matrix t 1 -t 9  In operation, switch t3 controls the selection of the program and, if retained closed, causes the program selector to step every 2 seconds with the number of the program displayed on AP. When the desired program is selected operation is started automatically or by manual operation of switch t 6 . The progression of the program is displayed on AC. The programmer is stated to be suitable for use in controlling clothes or dish washing machines.
Patent GB-704824-A (GB)
Title: Improvements in or relating to the etching of metal objects
IPC: C23F1/16
Filed: 1952-02-05
Abstract: 704,824. Etching. DOW CHEMICAL CO. Feb. 5, 1952 [Feb. 12, 1951], No. 3048/52. Class 100 (2) An etching bath for etching an acid-soluble metal, e.g. in making a printing plate, comprises a mixture of an aqueous solution containing nitric acid and an ester of an aliphatic acid having from 12 to 18 carbon atoms and a polyhydric aliphatic alcohol having from 2 to 6 carbon atoms. The aqueous solution may contain from 3 per cent to 50 per cent of nitric acid by weight, and the ester of the aliphatic acid and alcohol is used in amounts from 0.2 to 2.5 times that of the nitric acid by weight. A concentration of 5 per cent to 10 per cent of nitric acid by weight is preferred. The ester may be, for example, sorbitol laurate, diethylene glycol monolaurate, diethylene glycol mono-oleate, glycol mono-laurate, or propylene glycol mono-laurate. The inclusion of the ester in the etching solution produces an acid resistant film that exerts a controlling effect on the dissolving action of the acid by substantially reducing the action of the acid in a lateral direction whilst not adversely affecting the depth of the etch. The parts of the plate to be left unaffected are coated in the usual way with a resist and the etching solution is splashed on the plate or caused to impinge thereon by an atomizing nozzle.
Patent GB-842050-A (GB)
Title: Improvements in means transmitting thrust in hydraulic jaw crushers
IPC: B02C1/00
Filed: 1958-01-30
Abstract: 842,050. Jaw crushers. GAULDIC, K. Jan. 29, 1959 [Jan. 30, 1958], No. 3055/58. Class 59 [Also in Group XXIX] The force exerted between a ram A moved by liquid pressure developed by a reciprocating plunger and a jaw B of a crusher is transmitted by applying the liquid pressure developed by the plunger to a clearance between opposing surfaces G, H of a bearing involved in the transmission of the force. The jaw crusher, which is of the kind described in Specification 648,443 has its jaw provided with a curved surface D engaging a surface E of a thrustlink C having, at its other end, a surface G engaging a curved surface H on the ram A. Liquid pressure supplied by the plunger (not shown) acts on the righthand end surface of the ram and, by means of a passage F, in the clearance between the surfaces G, H. The liquid pressure also passes through a restriction M to a clearance L between the surfaces D, E. Since the diameter of the clearance between the surfaces G, H is less than that of the ram, some of the force at that bearing is transmitted mechanically. However, the diameter of the clearance L is greater than that of the ram so that all the force at that bearing is transmitted hydraulically, the surfaces D, E separating and oil passing between the surfaces to an extent determined by the resistance M. The thrust-link C is enclosed in a dust seal N and the oil passing between the surfaces is returned by a passage D to a sump. Angular movement between the ram, thrust-link and jaw is provided by the surfaces D, E. G, H which may be spherical or cylindrical. The liquid pressure developed by the plunger may also be used to transmit the force between other bearings in the transmission and applied to an oscillating cylinder for the plunger of the kind described in Specification 839,091.
Patent GB-1113821-A (GB)
Title: Process for the production of polyethylene graft polymers
Inventor: RATZSCH MANFRED
IPC: C08F255/02
Filed: 1966-01-24
Abstract: Graft polymers are produced from polyethylene, obtained by polymerization at a pressure of over 500 atmospheres in a tubular reaction vessel, the inlet temperature of which is over 50 DEG  C., and with a radical forming initiator, by carrying out the grafting immediately after the polymerization of the ethylene and in the same vessel, the graft monomer being added 60 to 160 seconds after the addition of the initiator and at a temperature 10 DEG  to 200 DEG  C. above the temperature at which the ethylene enters the reaction vessel.  In the examples the graft monomers and catalysts used are, respectively, (1) vinyl acetate and tertiary butyl perbenzoate, (2) acrylonitrile and dilauryl peroxide and (3) methyl methacrylate and di-tertiary butyl peroxide. Other monomers specified are styrene, acrylic acid, maleic anhydride, and carbon monoxide.  Solvents e.g. paraffin oil, benzene, water, alcohols, hexane and other hydrocarbons and/or molecular weight regulators may be added with the graft monomer.
Patent GB-1209831-A (GB)
Title: A rotary sheet printing machine impression cylinder or intermediate drum
Inventor: REINARTZ ROBERT
IPC: B41F21/10
Filed: 1968-01-19
Abstract: 1,209,831. Printing-apparatus. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 19 Jan., 1968 [4 March, 1967], No. 3111/68. Heading B6C. An impression roller or transfer cylinder is provided with a shaft which is subdivided into two parts 3<SP>1</SP>, 3<SP>11</SP> and supports grippers 1, the adjacent ends of the two parts being mounted in a common support 6 which is fixed to the shaft 5 of the roller or cylinder and which also supports one end of an intermediate shaft 7. A further member 4 is mounted on the shaft 5 and supports the outer ends of the part 3<SP>11</SP> and the shaft 7. The said outer end of the shaft 7 supports, via levers 16, 17, a roller 19 which engages a stationary cam 20. The levers 16, 17 are connected by a screw 18 which allows adjustment for papers of differing thickness. The end of the shaft 7 supported adjacent the middle of the roller or cylinder by the support 6 is secured to two spring-loaded two-arm levers 8, 9 which are connected to levers 12, 13 on the parts 3<SP>1</SP>, 3<SP>11</SP> via rods 10, 11. The grippers are opened when roller 19 engages the high point of the cam 20, which may be adjusted by slot means (21), Fig. 2 (not shown).
Patent GB-701074-A (GB)
Title: Method of and apparatus for perforating well casings and the like
IPC: E21B43/117
Filed: 1952-02-06
Abstract: 701,074. Perforating. SCHLUMBERGER WELL SURVEYING CORPORATION. Feb. 6, 1952 [Feb. 6, 1951], No. 3141/52. Class 83 (4). [Also in Group XXI] For piercing a well casing when cemented into position, one or more explosive perforating means are disposed in a carrier body at an angle to both the longitudinal axis of the body and a normal thereto, the perforating means being preferably directed upwards 80 that the perforations m the casing are directed downwards. The explosive perforating means comprise shaped charges 20 mounted within a watertight cylindrical container 16. The charges are positioned in containers 21 that may be held in sleeves 28 secured to a framework that can be removed from the container, or adjacent sleeves may be either interconnected by a pin on a bracket secured to one sleeve engaging a hole in the bracket of an adjacent sleeve, or by screwed rods extending from opposite sides of each sleeve and coupling nuts.
Patent GB-241076-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/54
Filed: 1925-02-04
Abstract: 241,076. Sankey, A. R. M. Feb. 4, 1925. Roller bearings.-A cage C in which the rollers D of a bearing are rotatablv mounted is driven round by the bearing parts at such a speed that no slip occurs between the latter and the rollers, and the rollers are kept in axial alignment with the shaft. As shown, applied to the bearing of a wheel B mounted on a fixed shaft A, the cage C is driven round by a member H mounted on a spindle G rotated at the required speed by a member J thereon engaging the wheel B. The contacting faces B<1>, C<1>, which may be toothed or roughened, are conical, the apices of the conical faces coinciding with the intersection of the axes of the spindles G and the shaft A. The housing E for each spindle G is fixed to the shaft A and preferably three spindles G are arranged at each end of the bearing. In a modification for a rotatable shaft the housings E are secured to the fixed bearing casing and the member J is driven by contact with the rotatable shaft.
Patent GB-925479-A (GB)
Title: Shell molding machine with gas-fired face plates
IPC: B22C23/00
Filed: 1962-01-29
Abstract: 925,479. Moulding-machines. NATIONAL ACME CO. Jan. 29, 1962 [Feb. 2, 1961], No. 3309/62. Class 83 (1). In a shell-moulding machine, core-box halves 21, 22 are fixed on face-plates 15, 16, to each of which a gas manifold 29, 30 is fixed, supplying combustible gas to a number of apertures 49, any of which may be blanked-off by plugs 51 in accordance with the shape of the box. The face-plate 16 is movable by means of a cylinder 18 and linkage 19, and the box-halves are supported by spacers 42 from T-slots in the face-plate. The face-plates are mounted on trunnions in a frame 13 so that it may be inserted for moulding mixture from a chamber 23 may enter the core-box through a discharge aperture 24, surplus mix being returned to the chamber on return of the assembly to the upright position.
Patent GB-577182-A (GB)
Title: Shellac modified resins
IPC: C08G12/08
Filed: 1943-03-01
Abstract: Thermosetting resinous products are obtained by reacting aniline, formaldehyde and shellac together or by heating an aniline-formaldehyde resin with shellac.  The proportion of formaldehyde to aniline should be at least 1/1 or else further amounts of formaldehyde should be added before the final polymerization is carried out.  1 to 50 per cent shellac may be added, the excess shellac acting as a diluent.  Resins such as urea-formaldehyde, dicyandiamideformaldehyde, triazine-aldehyde may be used to supply the required amount of formaldehyde. Catalysts specified include hydrochloric, sulphuric, sulphamic, trichloracetic, formic, oxalic acids; acid chlorides, ammonium salts of strong acids, or alkaline catalysts, e.g. lime; if the shellac is acidic it may act catalytically.  Fillers specified for moulding compositions include cellulose, wood meal, mica, asbestos, celite, glass, canvas.  In examples, 30 parts shellac are heated to 120 DEG  C. with 90 parts aniline; the product is cooled and 79 parts formalin added with further cooling.  In example 4, the aniline is first reacted with cresol and formalin in presence of an acid catalyst and shellac is added to the molten product. Specification 557,558 is referred to.
Patent GB-606096-A (GB)
Title: A process for the manufacture of methacrylamide
IPC: C07C233/09
Filed: 1941-03-12
Abstract: In the manufacture of methacrylamide by the action of sulphuric acid on acetone cyanhydrin, the reaction is effected at 110-130 DEG  C., preferably at 110-120 DEG  C., in presence of methacrylamide and is completed at a higher temperature of 115-160 DEG  C., preferably at about 140 DEG  C.  The process is suitably performed continuously by passing the components continuously into a cooled mixing chamber containing a solution of methacrylamide.  After the reaction is complete, the reaction solution is neutralized with ammonia when the methacrylamide separates out in the hot in an upper layer and a further amount is subsequently isolated from the lower layer.  An example is is given.