baber/WOPTO huggingface dataset:
Patent GB-1336187-A (GB)
Title: Machine tools
IPC: B23Q3/157
Filed: 1971-05-28
Abstract: 1336187 Machine tool details; multi-spindle machines MASCHINENFABRIK AUGSBURG-NURNBERG AG 28 May 1971 [29 May 1970] 18211/71 Headings B3B and B3C A machine tool comprises a machine bed 1; a first support part, e.g. slide 2, carrying a multispindle headstock 4 and a workpiece table 3, the multi-spindle headstock 4 being movable during cutting feed movement on the first support part towards the workpiece table 3; and a second support part 14 carrying a single operating spindle headstock 16 movable during cutting feed movement thereof towards the workpiece table; wherein the support parts are positionally movable on the machine bed relative to each other so that a plurality of operations of the single operating spindle headstock may be performed during a single operation of the multispindle headstock on the same workpiece on the table 3. A rotary magazine 9 is position fixed on the bed 1 and carries interchangeable heads 6, 6a, 6b on pegs 8. The heads may be pivotable about a horizontal axis on the magazine. The single operating spindle headstock 16 comprises two spindles 17, 18, one of which is adjacent a tool magazine 19. The magazine 19 and the headstock 16 are carried on a vertically movable slide 14, which constitutes the second support part, on a vertical stand 13 which moves horizontally on a bed 11, which may be a lateral bolted-on outrigger of bed 1.
Patent GB-225901-A (GB)
Title: A new or improved telephone receiver
IPC: H04R13/02
Filed: 1923-07-16
Abstract: 225,901. Ewing, G. Napier-, and Lloyd, V. July 16, 1923. Magnetic instruments.-In a telephone receiver of the type wherein the core of an electromagnet is centrallv situated in a magnetic casing, the core comprises a central soft-iron member 4 and an outer sleeve or cap 3 which constitutes a permanent magnet, and surrounds the upper portion of the member 4. A coil 5 is wound upon a former 6 which surrounds the permanent magnet.
Patent GB-829007-A (GB)
Title: Improvements in or relating to ferromagnetic chromium oxide materials
IPC: G11B5/706
Filed: 1956-06-13
Abstract: A ferromagnetic chromium oxide material suitable for magnetic tapes consists of uniform particles of tetragonal crystals structure having an average length of not more than 10 microns, and preferably having an average ratio of length to width of at least 8 to 1, the oxide containing 59.5 to 61.9% by weight of chromium and 0.03% to 1% by weight of an alkali metal as an integral constituent of the crystal lattice.  The cell constants of the lattice are ao=4.41 and co=2.90. The oxide has a maximum magnetic induction, Bm of 6500 gauss or higher, and a ratio of residual induction, Br, to maximum induction Bm, in excess of 0.25; the intrinsic coercive force is above 60 oersteds.  The modified chromium oxide is prepared by heating chromium trioxide at 400-525 DEG  C. under a pressure of at least 500 atmospheres in the presence of an aqueous alkali metal sulphate solution and thereafter separating and drying the chemically modified chromium oxide.  The amount of alkali metal sulphate solution may be from 0.1 to 1.2 times the weight of the chromium trioxide charge; the concentrations of such sulphate solution is preferably between 15 and 50%.  The sulphate solution may be acidified with, for example, about 5% of sulphuric acid. According to a typical example a platinum tube with flexible walls was charged with chromium trioxide and an aqueous solution of sodium sulphate.  The charged tube was sealed and placed in a water-filled bomb where it was heated to 450 DEG  C. at a 1000 atmospheres pressure for one half-hour after which the reactor was cooled and the pressure released.  The platinum tube was opened to release oxygen formed and a black finely-divided strongly-magnetic chromium oxide powder was separated by filtration, washed with water then with acetone and finally air dried.  The product was in the form of needles having widths of 0.2 to 0.5 microns and lengths 10-20 times as great.  Further examples relate to the production of chromium oxides modified by the presence of potassium and lithium ions.  Specification 824,323 is referred to.
Patent GB-237600-A (GB)
Title: Improvements relating to electrical switch mechanism
IPC: H01H31/28
Filed: 1925-07-17
Abstract: 237,600. Koppitz, C. G. July 24, 1924, [Convention date]. Oil switches; switches, actuating; contacts; arc-rupturing devices.-High tension air-break switches of the knife-blade type for outdoor transmission lines are so arranged that during their opening movement the contact carrying member is first rotated within the fixed contact clip so that the contact arm may be loosened if it has been frozen into position after which the contact member may be easily withdrawn to the open position, the circuit being finally interrupted be tween arcing horns attached to the fixed and movable contact members. The tubular contactcarrying member 10 carries at one end a contact 18 and is rotatably mounted but restrained' from longitudinal movement on a short shaft projecting axially into the member 10 and carried by a stirrup 16 pivoted at 17 on the insulator 11. The member 10 has a collar 19 bearing trunnions 20 through which project the arms 21 of a forked link, the apex of which is universally jointed at 22 to the top of the insulator 23 which is carried by a crank arm projecting from the operating shaft 24. The arrangement of the parts is such that on rotation of the arm 24, the member 10 is first rotated about its axis bringing the contactmember 18 from the position shown in Fig. 4 to that shown in Fig. 3. If snow or ice had formed between the arms of the fixed contact 12 this obstruction would be crushed during the initial rotation before the final withdrawal of the contact 18 from the jaws 12, which occurs on continued rotation of the shaft 24. An eccentricallvmounted sparking-horn 29 projects longitudinally from the end of the member 10 so that during the initial rotation of this member it is brought into engagement with a fixed horn 27 and when the member 10 is lifted to the open-circuit position the circuit is finally broken between the arcing- tips 28, 29. In the closing movement a reverse action occurs, a stop 25 being provided to limit the downward' movement of the arm 10 before the rotational movement commences. This enables a high contact pressure can to be employed. To prevent undue strain on the insulator 23 ;t may carry an arm 27 at its upper end pivoted to a fixed link 26 at a point in line with the operating shaft 24.
Patent GB-439978-A (GB)
Title: Improvements in toy guns
IPC: F41B7/02
Filed: 1934-06-21
Abstract: 439,978. Toy guns. CHAD VALLEY CO., Ltd., Chad Valley Works, Harborne, and WHITEHOUSE, F. R. B., Fairdays, Barlows Road, Edgbaston, both in Birmingham. June 21, 1934, No. 18313. [Class 132 (iii)] A toy gun or pistol of the type for discharging elastic bands as projectiles has a rotary member 10 having a plurality of arms 11 over each of which is stretched an elastic band 19 and the rotation of the member 10 is controlled by a spring-controlled trigger 14 having two lugs 17 and 18, one of which is always in the path of the arms 11, the parts being so disposed that only one of the bands is discharged each time the trigger is pulled. The body of the gun is formed of a stock or butt 5 and a block 6 carrying a dummy barrel 7 attached by two side plates to which they are screwed supporting the mechanism, the plates if desired being formed with projections to simulate a revolving cylinder. The barrel may have, as shown, a groove 20 at the end to take the bands or an upwardly or downwardly projecting pin for the purpose.
Patent GB-681975-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B27/16
Filed: 1951-08-02
Abstract: 681,975. Tool-holders. ENSTONE, A. C. Aug. 2, 1951, No. 18320/51. Addition to 661,460. Class 83 (iii). The tool-holder of the parent Specification is provided with an abutment or looking device constituting a positive support against which the tool or tool adaptor abuts in predetermined or adjusted position, the abutment or locking device positively supporting the tool or tool adaptor against the cutting thrust. In Fig. 2, the tool 3 has a projection 3c that reacts against the cutting thrust by engaging the end wall of the tool recess 1a. This projection may be disposed on the opposite side of the tool to that illustrated, or two projections may be provided on the tool to engage an abutment on the shank 1 in two positions of adjustment of the tool about its pivot 2. In a modification, Fig. 4, the end 3d of the tool is wedged against a locking device comprising an eccentrically pivoted disc 5 having a knurled edge. The cutting thrust on the tool tends to rotate it clockwise and increase the wedging action. The disc 5 may be positioned as illustrated in Fig. 5 and function as an abutment.
Patent GB-1247319-A (GB)
Title: Improvements in process for making superconductors
IPC: H01B12/02
Filed: 1970-04-17
Abstract: 1247319 Super-conductors GENERAL ELECTRIC CO 17 April 1970 [29 April 1969] 18503/70 Addition to 1160566 Headings H1A A5 and A4D In a method of producing a super-conductor tape of the kind disclosed in the main Specification 1160566 in which a super-conductor lamina is bonded between two outer laminae of a metal having a higher coefficient of expansion at an elevated temperature so that on cooling the superconductor is subjected to a compressive stress, the super-conductor is produced by passing a strip of Nb through a bath of molten Sn, and heating the resulting strip to form Nb 3 Sn at the Sn-Nb interface, the heating step being terminated before all the Sn is reacted so that elemental Sn surfaces are preserved on the strip. This improves the solderability of the strip. Three such strips are assembled and soldered between two Cu foils as described in the main patent.
Patent GB-443818-A (GB)
Title: Ophthalmic mounting and method of making same
IPC: G02C1/02
Filed: 1935-06-28
Abstract: 443,818. Spectacles &c. BAUSCH & LOMB OPTICAL CO., 635, St. Paul Street, Rochester, New York, U.S.A. June 28, 1935, No. 18527. Convention date, July 28, 1934. [Class 97 (i)] Two lens straps are secured on opposite sides of a lens and a lens rim is fixed to one strap, fitted against the edge of the lens and detachably or adjustably secured to the other strap. The rim may be fixed by solder at one end to a lens strap carrying the temple, lapped round the upper half of the lens edge and secured at the other end to a strap, carrying the bridge and nose pads, by a screw which passes through a tubular member on the rear of the rim and engages threads in the strap. Alternatively the end of the lens rim 47, Fig. 8, passes through the space between the inner face 46 of the strap 40 and the edge of the lens 25. After being lapped tightly round the edge of the lens the rim is secured by the screw 48. In a modification, Fig. 9, the lens strap 50 is attached to the lens 25 by fusible retaining means 53 as described in Specification 395,932 and the end of the lens rim 55 is passed through the space between the strap and the edge of the lens and secured by fusible means which passes along a channel 56 in the ear 52 of the strap and into a hole 58 in the rim 55. Alternatively the fusible means for securing the lens rim may be supplied independently of that for securing the lens strap to the lens. In a further modification, Fig. 12, the lens strap 60 has a recess 64 into which the bridge 65 and guard arm 66 are placed and retained by screw 69. The lens rim 68 passes through the space between the strap 60 and lens 25 and is clamped by the end of the screw 69. In a further modification the end of the lens rim 95 is provided with notches 96, Fig. 21, which may be filed away to secure a proper fit, the lens strap 93 being slipped over the notched portion and secured to the lens.
Patent GB-1014365-A (GB)
Title: Improvements in single phase induction type motor
Inventor: BRAMMERLO ALLEN ALBERT
IPC: H02K17/04
Filed: 1963-05-10
Abstract: 1,014,365. Induction motors. GENERAL ELECTRIC CO. May 10, 1963, No. 18658/63. Heading H2A. In a resistance- or capacitance-split-phase induction motor the odd harmonics of the flux due to the main and starting windings are in additive relation to increase the starting torque. This is achieved by the use of concentric windings in which the number of turns per coil in the main windings progressively increases from the innermost to the outermost coil (as is usual) but progressively diminishes in the starting winding. The running characteristic is not affected because the starting winding is disconnected at speed. Aluminium wire may be used for the main winding.
Patent GB-419875-A (GB)
Title: Apparatus for classifying finely divided material for size
IPC: B07B4/00
Filed: 1934-06-25
Abstract: 419,875. Separating solid materials. HAULTAIN, H. E. T., 156, Glencairn Avenue, Toronto, Canada. June 25, 1934, No. 18714. [Classes 82 (ii) and 117.] Apparatus for classifying powdered materials such as cement according to size comprises a settling tube 1, Fig. 1, having an airinlet 2 closed by a ball &c. valve 3 which is opened by the passage of the fluid and closes on the cessation of flow to prevent backward flow of the solids. A number of tubes 1, 1<a>, 1<b> of successively increasing diameters may be arranged in series, and may be suspended in a frame 11 in such a manner that a mechanical vibratory movement may be imparted to them. As described, a crosshead 14, acted on by a snail-cam 15 through an adjustable tappet 14<a>, carries wires 17 which are anchored at their lower ends by springs 19. The wires are connected to the tubes either directly as at 17<a> or by means of conical sleeves 17b, with guiding lugs 17<c> embracing the wires. The tubes are interconnected by pieces of tubing 5<a>, 5<b> which telescope into the stopper of the one next below when it is desired to detach them. The lower tube is similarly connected by a piece of tubing 5 to a source of fluid pressure. The material under treatment is placed in the lowermost tubing or fed thereto in small quantities by the device shown in Fig. 3, which consists of a conical tube 18 containing the material and connected at its upper and lower ends by tubes 18<c>, 6<a> and a two-way cock 18<b> with the air-supply pipe. The tube 18 has a ball valve 3<x> at its lower end and is connected by tubing 5 with the first of the series of separating tubes. The exhaust from the upper member of the series passes through a filter 13 which may be enclosed in a suction chamber when a suction device is used as the source of fluid supply.
Patent GB-530556-A (GB)
Title: Improvements in and relating to processes for separating fibrous materials from suspensions containing the same
IPC: B03D1/02
Filed: 1939-06-27
Abstract: 530,556. Separating fibres from suspensions. DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT VORM. ROESSLER. June 27, 1939, No. 18714. Convention date, June 28, 1938. [Class 96] [Also in Group IV] Fibrous materials are separated from suspensions, e.g. the waste liquors from paper or cardboard manufacture, by the flotation process using a flocculating agent, e.g. alum, in the presence of a substance evolving oxygen, e.g. hydrogen peroxide, ozone, sodium peroxide, sodium perborate, and persulphuric acid and its salts. Wetting agents, e.g. Turkey red oil, and frothing agents may also be present. The medium preferably has a pH greater than 7, and is under reduced pressure.
Patent GB-1097253-A (GB)
Title: Improvements relating to variable speed transmissions
Inventor: HICKS RAYMOND JOHN
IPC: F16H47/04
Filed: 1964-05-06
Abstract: 1,097,253. Variable-speed gearing. COMPACT ORBITAL GEARS Ltd. May 6, 1965 [May 6, 1964], No. 18735/64. Heading F2D. In a variable-speed gear, including hydraulically coupled hydrostatic pumps or motors 16, 26 and two sun-planet annulus epicyclic stages, the planet carriers 11, 22 of which are secured to an input shaft 10 which also carries a gear 25 drivingly connected to the variable displacement swash-plate pump 26, the annulus gear 23 and the reaction sun 18 of the second stage being respectively connected to an output shaft 24 and the annulus gear 17 of the first stage, the reaction sun 12 and annulus 17 of the first stage are independently connectable to the motor 16 by axially slidable idler gears 14, 20 meshing with a gear 15 on the motor shaft. For maximum output speed, the idler 14 is disengaged, leaving the first stage without a reaction member, and the idler 20 connects the motor 16 to the annulus 17 to drive the second stage sun 18 in the opposite sense to the input shaft 10, the pump 26 being at maximum displacement. To progressively reduce the output speed the stroke of the pump 26 is progressively reduced through zero to the reversed range, in which the unit 16 acts as a pump to recirculate power via the unit 26, now a motor, to the shaft 10. As the stroke of the unit 26 reaches maximum reverse value, the annulus 17 and sun 12 of the first stage become synchronous, and the idler 14 is engaged with a gear 13 integral with the sun 12, to lock up both stages for direct drive. Reduction of the stroke of unit 26 transfers the torque from the annulus 17 to the gear 13, until when the former is unloaded, spring action pushes the idler 20 out of mesh with teeth 19 on the annulus 17. Thereafter, reduction of the stroke of unit 26 through zero and back to maximum forward displacement causes progressive reduction of output speed to the minimum value, the two stages being compounded over this second range.
Patent GB-161996-A (GB)
Title: Improvements in and relating to the repairing of boots and shoes
IPC: A43B13/28
Filed: 1919-07-29
Abstract: 161,996. Follows, W. J. July 29, 1919. Protectors, securing.-Soles and heels are provided with metal foundation plates b permanently secured by wood screws e. The foundation plates are threaded to receive screws c which secure renewable wearing parts a of rubber, leather &c. The metal foundation plates are cut away in the centre and fitted with filling-in pieces.
Patent GB-1032708-A (GB)
Title: Display stand
Inventor: JOHNSTON CHARLES COLLIER
IPC: A47F5/06
Filed: 1964-05-06
Abstract: 1,032,708. Article display stands. J. MARTIN & SONS Ltd. May 4, 1965 [May 6, 1964], No. 18768/64. Heading A4T. A display stand for supporting cards, stockings and light-weight articles comprises an upright, which may be sectioned or telescopic and stands on a base or box or is supported from above, and a flexible, collapsible spiral having its upper and lower convolutions connected to the upright.
Patent GB-152799-A (GB)
Title: Improvements in means for converting reciprocating into rotary motion
IPC: F02B33/12
Filed: 1919-07-29
Abstract: 152,799. Cummings, A. July 29, 1919. Link-work.-In a device for converting reciprocating into rotary motion, applicable to internal-combustion engines, steam engines, &c., a curved slot 8 in a cross-head 5 on a piston rod 2 engages a crank-pin 10. One half of the slot 8 is so shaped that after the crank - pin has passed through 90 to 135 degrees from the commencement of the stroke of the piston, it will for the rest of the stroke be located in a portion of the slot which coincides with its path, and the other half of the slot first curves outwardly from the piston and then towards its extreme end coincides with the path of the crank-pin. The cross-head may be in two parts 5, 6, and the crank-pin may be provided with a loose bush 9. When a crank-pin is driven by a cross-head connected to the piston-rods of two opposed cylinders, the parts of the slot on each side of the axis of the rods are similar in shape.
Patent GB-796667-A (GB)
Title: Improvements in or relating to flexible shaft couplings
IPC: F16D3/04
Filed: 1955-07-01
Abstract: 796,667. Linkwork conveying circular motion. BROWN, BOVERI & CO., Ltd. July 1, 1955 [July 2, 1954], No. 19070/55. Class 80 (3). Relates to a flexible coupling, between shafts which are not coaxial but are parallel, of the type comprising flanges 1 on the shafts carrying pins 4 lying in bases in links 3 having further bores to receive pins 6 fast with an intermediate floating member 5. According to the invention, the diameter of the bores in the links exceeds the diameter of the pins 4, 6 by an amount sufficient to ensure that the pins roll, but do not slide, in the bores as the coupling turns. The Specification gives a formula in terms of the radial distance of the pins 4 from the axes of their shafts, the distance between the axes of the two shafts, and the coefficient of friction between the pins and their associated bores, from which the minimum bore diameter for a given pin diameter, necessary to allow rolling and prevent sliding, can be calculated. Fig. 1 (not shown), illustrates diagrammatically a modified flexible coupling in which single pins on the floating intermediate member 5, each support two links connected to the two shafts.
Patent GB-223659-A (GB)
Title: An improved dobby for use in weaving textile fabrics
IPC: D03C1/06
Filed: 1923-07-26
Abstract: 223,659. Holliday, J. July 26, 1923. Dobbies.-The vertical arms 13 of bellcrank feelers 9 controlled by pattern pegs 8 act as stops for the lower ends of hooked vertically - reciprocating levers 14 pivoted on rods 15, 18 of an oscillating frame, or allow the levers to fall by gravity into engagement with the hooked end 17 of a vertically-sliding presser bar 6 engaging the ends 5 of the jack levers 1, 2. Cam parts 21, 19 are formed on the presser bar and on the outer faces of the levers 14 to cause slight movement of the feelers 9 during the vertical movement of the levers 14 and thereby prevent the accumulation of dust. The Provisional Specification describes also a method of controlling the pattern by a cam chain which is fed forward one link at each revolution of the lag barrel, a cam on the chain operating a device for producing a cutting cord between repeats of the pattern, a cam also controlling mechanism for moving one lag barrel from under the feelers and replacing it by another after a predetermined number of pricks. Means are described for preventing the simultaneous engagement of both lag barrels.
Patent GB-297538-A (GB)
Title: Improvements in signs for advertising and other purposes
IPC: G09F7/22
Filed: 1927-07-19
Abstract: 297,538. Goldsack, P. J. July 19, 1927. Reel and endless-web apparatus; actuating.-In signs in which an endless translucent moving band hearing colours or advertisements &c. is seen by reflection in or by a mirror, the movement of the band 11 is effected by fans 14, which actuate the band rollers 12 bv friction drive. A fan may be provided at each end of each roller 12. The sign may be mounted on a vehicle and a brake or governor may be provided. The oppositely-moving portions of the band 11 may be both on one side of the mirror 1, cr the band may be led round the mirror so that one side only at a time is seen reflected. The band may be perforated along the edges to engage teeth on the rollers 12, and jockey pulleys are provided to keep the hand taut.
Patent GB-400360-A (GB)
Title: Improvements in gas washers
IPC: B01D47/06
Filed: 1932-07-07
Abstract: 400,360. Gas washers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Freyn Engineering Co. ; 310, South Michigan Avenue, Chicago, U.S.A.) July 7, 1932, No. 19281. [Class 55 (ii).] Gas washers comprise a conduit 10 having a gas inlet 30, hurdles 12, walls 14 dividing up the conduit into a number of uniformly distributed passages, a battery of spaced tortuous or zig-zag plates 19 within each passage and a water nozzle 16 at the exit of each passage.. In the form shown the height of the passages is sufficient to accommodate four superposed batteries, the plates of adjacent batteries being disposed at right-angles to one another.