baber/WOPTO huggingface dataset:
Patent GB-636843-A (GB)
Title: Hemmed article and method of and attachment for making stitched hems
IPC: D05B21/00
Filed: 1948-05-14
Abstract: 636,843. Sewing; sewing-machines. FAIRWEATHER, W. C., (Singer Manufacturing Co). May 14, 1948, No. 13274. [Class 112] Stitched seams; feeding work by presser-feet; presser-feet. A hem, Fig. 11, comprises a Z-shaped fold 1, 2, 3 with a marginal portion m, straight stitches s in the marginal portion, and at intervals, spaced by a plurality of the stitches, lateral stitches t anchoring the fold edge e to the marginal portion. , A sewing-machine attachment for sewing the hem comprises a work-holder 31, Fig. 1, in the form of a presser-foot movable transversely to the feed, means actuated by the needle-bar 9 for moving the work-holder, and automatic means periodically rendering the workholder moving means inoperative. An arm 30 of the workholder is pivoted at 29, and engaged by notches in spring loaded slide bars 40, 41. The bars are alternately reciprocated by a lever 27 oscillated about a pivot 28 by a bell crank 16 actuated by the needle-bar. The amount of transverse movement of the work-holder is adjusted by a screw 21 in the bell crank. The needle-bar gives step by step clockwise rotation to a pawl wheel 47 by means of a pawl 48, Fig. 6, pivoted to the lever 27. A cam 42 engaged by the sliding bars and rotating with the pawl wheel periodically prevents the sliding bars engaging the arm 30 and thus renders the work-holder moving means inoperative. When the cam is in the position shown in Fig. 7 the notch in the bar 41 moves the work-holder to the position shown in full lines in Fig. 9. In the next position of the cam the bar 41 moves the work-holder to the position shown in dotted lines. The attachment is adapted for straight stitching by turning a lever 55 to prevent the sliding bars engaging the arm. The work-holder has longitudinal serrations on the under side, and is provided with a spring member 38 which in conjunction with a block forms a guide for the fold edge of the seam.
Patent GB-552232-A (GB)
Title: Improvements in or relating to reflector blocks for road surface marking
IPC: E01F9/07
Filed: 1941-10-15
Abstract: 552,232. Road marking blocks. UNIVERSAL RUBBER PAVIORS, Ltd., and GAISMAN, L. Oct. 15, 1941, Nos. 13296/41, 13458/41, 14243/41, 15047/4 and 734/42. [Class 87 (i)] [Also in Group XVIII] A road marking reflector device comprises a metal block 17 combined with a rubber member 21 fitted with lenses 24, the block having one or more protective metal bars 19 extending across the top and standing above the level of the road. The bars 19 may be connected by a transverse web or webs 18, and in this case the member 21 is made up of two parts. The rubber member is inserted from beneath and is retained either by overlapping corners at the base of the side openings in the block, or by a bottom plate welded or otherwise fixed in position. The under side of the member 21 is made concave, or rests on feet, so that pressure on top of the rubber depresses same and causes any water which may have accumulated below the member to squirt up through channels opening out beneath the reflectors 24, and thus cleanse them. The water space may alternatively comprise a cavity in the rubber member, the bottom of which is flat. The reflectors are bedded in recesses in the member 21, the member being longitudinally slit below the recesses so that they can be opened out to receive and release the reflectors. The block 17 may be fitted with a triangular leg 25 at each corner, and these may be complemented by similar legs on the retaining base plate. Specifications 261,478, [Group 87 (i)], and 436,290, [Group XVIII], are referred to.
Patent GB-569741-A (GB)
Title: Improvements relating to mechanism for causing a controlled or driven appliance to follow the movements of an initiating device
IPC: G05D3/12
Filed: 1943-08-16
Abstract: 569,741. Electric control systeans. EVERSHED & VIGNOLES, Ltd., and NEEDHAM, J. C. Aug. 16, 1943, No. 13299. [Class 40 (i)] In a follow-up system of the kind described in Specification 564,224 in which the sunwheels of a differential gear are driven respectively by a control member and by a relay motor, the latter being controlled by switches operated by the planet carrier, the control member comprises a small step-by-step motor 1 having angularly spaced coils which are supplied in sequence with direct current from a manuallycontrolled transmitter 10, and in order that the motor 1 may be lined up with the transmitter 10 from time to time (misalignment may result from the transmitter being moved when the current supply has failed), the relay motor 2 may be isolated from the control by means of a switch 18 and connected to a reversing commutator 20 which is driven by the motor and which has " dead " segments 24 between its main segments 22, 23. For the operation of the engine controls of an aircraft, for example, the dead position of the commutator may correspond to the cruising speed, and if when the switch 18 is thrown the engine controls are to either side of the cruising position, the motor 2 will rotate the commutator 20 until the dead position is reached. The commutator may be adjustably mounted on its shaft.
Patent GB-133172-A (GB)
IPC: A44B5/00
Abstract: 133,172. Dowling, E. B., and Newman, C. A. Oct. 9, 1918. Sleeve-links.-In sleeve-links of the kind comprising a pair of telescopic members having a pivot or swivel connexion, means are provided between the resilient connexions of the link to keep the button heads normally together and thus reduce the size of the cuff opening. The button-heads a, Fig. 1, are carried by cylinders c in which are headed plungers f surrounded by springs c, the ends of the plungers f being flattened and pivotally connected by a rivet g. The end h of one rod f is kite-shaped with two flat portions i against which the cylinder c of the other rod f abuts and is retained by the pressure of the springs e when the rods f are at an angle as shown with the button-heads a close together. In a modification, Fig. 4, a spring plate h on the end of one rod has stops m which snap over the end of the other rod f to retain the rods in an angular position.
Patent GB-908690-A (GB)
Title: Semiconductor device
IPC: H01L29/68
Filed: 1961-04-13
Abstract: 908,690. Semi-conductor devices. WESTING- HOUSE ELECTRIC CORPORATION. April 13, 1961 [May 16, 1960], No. 13325/61. Class 37. In a diode with a PNP or NPN zone configuration and ohmic contacts to the outer zones one of the PN junctions has an Esaki diode negative resistance characteristic and the other a backward diode characteristic. The resultant characteristic of the device, Fig. 3, has the forward Esaki diode characteristic for one direction of bias and the forward characteristic of the backward diode in the opposite direction. Such a diode is made by diffusing donor impurities into a nearly degenerate N-type semi-conductor wafer to form a degenerate surface region, etching away this region from one face of the wafer, and then alloying acceptor material into both faces to form degenerate P-type zones making narrow PN junctions with the wafer. The wafer may be of silicon, germanium, gallium arsenide, gallium phosphide or indium antimonide.
Patent GB-456069-A (GB)
Title: Improvements in or relating to building blocks, slabs, tiles or the like and structures made therefrom
IPC: E04B2/40
Filed: 1935-05-04
Abstract: 456,069. Walls. HUXLEY, J. H., West House, Addison Crescent, West Kensington, London. May 4, 1935, No. 13347. [Classes 20 (iv) and 87 (i)] Building-blocks 1 for wall constructions are provided with dowelling devices which are so disposed that when the blocks are assembled with each block superposed on two lower blocks, the engagement of the dowels results in a spacing of the lower blocks to accommodate jointing material. Sockets may be provided in the upper and lower faces of the blocks for use with loose dowels 2, or dowels with splayed shanks 2a may be set in concrete in the upper faces of the blocks, sockets being provided in the lower faces. The dowels may be split as at 2b to make tight engagement with the sockets. The blocks may be formed with panel recesses 10 on one face. The wall may be formed by spaced parallel walls of superposed blocks tied by wall ties 6 having ring ends to engage over the dowels, and a downwardly extending centre portion 14 to prevent passage of water to the inner wall. Concrete may be filled in between the walls. The upper faces of the blocks may be recessed around the dowel to accommodate the ends of the wall ties, so that the ends of the wall ties lie flush with or below the surface of the blocks. Corners may be formed by curved blocks 1c abutting against full size blocks 1 and half blocks 1b in alternate courses and tied to the inner wall by ties 6. Where two or more tie-ends engage with one dowel, these ends may be flattened so that the total thickness does not exceed the depth of the recess in the blocks. Square corners may be formed as shown by Fig. 3a, or by square or rectangular blocks as shown by Fig. 3b. An embankment 8a, Fig. 6, may be faced with blocks 1 having a glazed &c. face 1a tied to rods 8 which are set at their lower ends in concrete 8b and have pointed upper ends engaging in the embankment, concrete being filled into the space between the wall and the embankment. The blocks may be of breeze, Portland and other stone, porcelain, granite, cast-iron, pressed steel rendered rust-proof, firebrick, or plastic material.
Patent GB-775019-A (GB)
Title: Improvements in or relating to indicating counters
IPC: G06M1/14
Filed: 1954-05-07
Abstract: 775,019. Counting-apparatus. KOLLSMAN INSTRUMENT CORPORATION. May 7, 1954 [Jan. 13, 1954], No. 13393/54. Class 106 (1). In a counter having a plurality of orders, a drum or wheel forms the indicator in one order and an endless tape forms the indicator in the next higher order, The invention is described as applied to a counter for registering angular measurements, e.g. azimuth measurements. The housing 10, Fig. 2, comprises two parts 12, 14 secured together by bolts 16 and has a viewing window. The first order drum 26, Fig. 4, on a shaft 24 is driven from the input shaft 20 through gears 30, 32, Fig. 9, and is connected to the second order drum 28 through Geneva-type transfer mechanism 34, 38, 42, 44. In the third and highest order the indicator is formed by an endless tape 46 which passes over a guide 62, and is fed by mechanism comprising sprocket wheels 54, 56 having drive gears 82, 84 connected through a gear 80 to Geneva-type transfer mechanism 72, 66, 78 actuated by the second order drum 28.
Patent GB-543401-A (GB)
Title: Improvements in or relating to the impregnation of wood
IPC: B27K3/52
Filed: 1940-08-23
Abstract: 543,401. Treating wood; rot-proofing. IRSA, G. L. DE. Aug. 23, 1940, No. 13401. [Class 140] Wood is impregnated first with a rot- and insect - proofing substance and then with a solution of a neutral or synthetic resin under pressure. Logs are first dried in an evacuated vessel at a temperature not exceeding 100‹C., then impregnated with corrosive sublimate or Tanalith (a mixture of sodium fluoride, sodium arsenate, potassium dichromate and dinitrophenol to which a neutral soft soap may be added and the water removed by a vacuum treatment. A solvent for the resin is then introduced and excess pumped off. A solution of resinit or coumarone resin in a mixture of ethylene tri-chloride and alcohol is then introduced into the vessel by utilizing the vacuum and pressure is applied. The pressure is subsequently reduced to atmospheric, excess solution removed and the temperature slowly increased to remove the solvent. If desired this temperature may be increased to 140‹C, to harden the resin. Paraffin wax may be added to the resin solution. Specification 352,272 is referred to.
Patent GB-705937-A (GB)
Title: Improvements in or relating to electric induction motors
IPC: H02K5/12
Filed: 1951-06-06
Abstract: 705,937. Induction machines. PENSABENE, N. Dec. 19, 1951 [June 6, 1951], No. 13420/51. Class 35 A single or polyphase squirrel cage motor has a number of laminated stator field magnets arranged in a ring with their longitudinal axis parallel to the axis of rotation and a disc rotor supported adjacent to the ends of the stator poles (or between two stators), each stator core carries different coils disposed in different positions along the length of the core. Fig. 2 shows a pump having impellers 14 driven by a polyphase induction motor having a solid iron disc rotor 8 with cage formed of radial bars 9 and rings 10, 10a and a stator mounted sideways of the rotor 8. The stator consists of twelve laminated electromagnets 1 the ends of which remote from the rotor are magnetically joined by a laminated annular core 5. A water-tight diaphragm 7 is interposed in the axial air gap between the stator and rotor. Water is pumped from inlet 16 via pump outlet 17, passages 18 in ring 10a, conduit 3 and finally to delivery pipe 4. Alternatively, as shown in Fig. 3, the rotor 8 is mounted betweeen two stators having laminated cores 1 which are supported axially end-to-end. When two rotors are provided in a single-phase motor, one of the rotors may be free to rotate idly so that it can be easily started by any means and when it is near synchronous speed the other rotor will be able to start against a large torque owing to the strong rotating field produced by the first rotor. The stator pole pieces may fit together to form a continuous pole surface.
Patent GB-802784-A (GB)
Title: Improvements in and relating to valves for controlling lubricant flow to a plurality of lubricating points
IPC: F16K11/083
Filed: 1955-05-10
Abstract: 802,784. Valves. HUGHES, J. F. March 2, 1956 [May 10, 1955], No. 13454/55. Class 135. A control valve for a lubricating system comprises a conical plug 15 provided with a union 22 through which lubricant under pressure may be supplied via a non-return valve 21 to an inlet duct 20. On rotation of the plug, any one of a plurality of outlets 26 in the body 10, each connected by a union 27 to a point to be lubricated may be brought into register with the duct 20. One outlet 26a, is closed by a plug 29 and when the plug 15 is rotated to a position in which the duct 20 registers with this outlet the lubricant under pressure passes through a groove 28 in the valve body to act on the bottom face of the plug 15 to urge it upwardly against a spring 17 so that the duct 20 is connected to all the outlets simultaneously. The plug 29 may be removed and a connection made to a lubricant pressure source so that all the lubrication points are supplied simultaneously.
Patent GB-740751-A (GB)
Title: Improvements relating to the mounting of meshes in electric discharge devices
Inventor: JENNINGS ALBERT EDWARD
IPC: H01J29/02
Filed: 1952-05-18
Abstract: 740,751. Discharge apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 8, 1953 [May 8, 1952], No. 13475/52. Class 39 (1). A flat metal mesh such as for use first as a stencil for depositing the mosaic target of a television pick-up tube and then as a stabilizing electrode in front of the mosaic target, is mounted in a frame for movement from one plane to another parallel plane; it is held by spring pressure in one plane and then dislodged and moved to the other plane by a light force where it is locked positively by the holding means operating as an automatic catch. The mesh 10 is secured across a frame 9, Fig. 1, which is mounted on a second frame 2. Projections 11 of the frame 9 ride in guide-ways 21 Fig. 3, in the frame 2. Arms 13 pivoted at 14 hold, under pressure of a spring 16, the projections 11 and consequently the mesh in the first position. Subsequently the mesh is dislodged so that the projections 11 are moved past the ends of the arms 13 which then prevent their return. The mesh frame 9 is then locked against flanges 6 on the frame 2, Fig. 1. The mosaic target is deposited on a dielectric sheet 3 applied to the end wall 1 of the tube with the interposition of a conductive film 4 to form the signal plate. In the deposition step by evaporation through the mesh, the mesh is pulled into intimate contact with the dielectric sheet 3 by electrostatic attraction. The pick-up tube may be of the type operated with cathode potential stabilization. Specifications 600,520 and 657,666 are referred to.
Patent GB-787409-A (GB)
Title: Improvements in or relating to cathode-ray tubes for the reproduction of colour television images
IPC: H01J31/20
Filed: 1955-05-10
Abstract: 787,409. Colour television tube. CHROMATIC TELEVISION LABORATORIES, Inc. May 10, 1955 [May 10, 1954], No. 13518/55. Class 39(1). A cathode ray tube for colour television comprises two flat grids and a curved display screen which coincides substantially with the focal spots of the electron lenses formed by the two grids. The first grid comprises two sets of parallel wires 19, 20 disposed alternately and to which are applied alternative control voltages, and the display screen 13 may be part of the surface of a cylinder, the axis of which is parallel to the wires of the second grid 17, which are preferably disposed at right angles to the first grid 19, 20. The screen 13 comprises parallel strips of luminescent material with an overlying electron pervious reflecting layer of metal. In a modification an alternative transparent metal layer is provided between the phosphors and the support. The screen may touch the grid 17 at the edges and in one modification it is curved in directions at right angles, the curvature in the direction of the wires 17 being four times that at right angles thereto. The second grid and the conductive layer of the screen are electrically connected together so that the space between them is field free and does not affect the focusing action of the grids. The potential of grids 19, 20 is 200-400V lower than the wall coating 11, the colour selection voltage difference on the grids 19, 20 being from 200-400V. The potential on grid 17 is materially higher than the average potential of grid 19, 20. The mathematical determination of separation distances and voltages is discussed in the Specification.
Patent GB-316690-A (GB)
Title: Improvements in and connected with methods of and means for the telegraphic transmission of pictures, diagrams, and other impressions
IPC: H04N1/36
Filed: 1928-05-08
Abstract: 316,690. Baker, F. W. W., and Green, C. E. May 8, 1928. Synchronous movements; copying- telegraphs. - Apparatus for synchronizing the cylinder or carrier 11 of a copying- telegraph receiver comprises a revolving driving- member 15, a pivoted lever 17 for coupling at will the cylinder to the driving - member and means for controlling the pivoted lever in order that the cylinder may be started in phase. The lever is mounted on the cylinder and has a detent 19 which engages ratchet teeth on the driving- wheel 15. The driving grip is released by an electromagnetically operated clutch 23 which is moved into the path of the lever to co-operate with a cam portion 21 to free the lever from the driving-wheel against the action of a return spring 20. A stop 22 on the lever engages the catch to stop the cylinder after the driving-grip has been released. According to a modification, a friction drive may be used. Specification 310,345, [Class 57, Governors &c.], is referred to.
Patent GB-747411-A (GB)
Title: Improvements relating to the separation of gases
IPC: C07C7/11
Filed: 1953-05-14
Abstract: <PICT:0747411/III/1> In a continuous process for the gaseous phase separation of two substances having equal or closely adjacent boiling points, by fractional absorption with a selective solvent in column 1, the solvent leaving the bottom of this column is degasified in vessel 3 to remove the greater part of the more soluble gas and is then stripped in column 4 with a stream of the less soluble gas to remove the remainder of the more soluble gas; the gas mixture from the top of column 4 is combined with the original gas entering at the middle of column 1, and the solvent containing less soluble gas from the bottom of column 4 is passed to the top of column 1. Part of the more soluble gas from degasifier 3 is removed from the system and part returned to the bottom of column 1.  Less soluble gas from the top of column 1 is partly removed and partly led to the stripping column 4.  A uniform temperature may be maintained in zones 1, 3 and 4, with zone 1 operating at a raised pressure, and degasification being effective by reduction of the pressure in zone 3, for example, to about atmospheric.  The energy set free in expansion between zones 1 and 3 may be used for compressing solvent fed to the top of fractionator 1.  Alternatively, moderate heat may be applied to degasifier 3.  Formul  are given from which the minimum pressure in the fractionating zone and the minimum quantity of solvent fed to the fractionating zone may be determined from the solubility coefficients of the gases, the pressure in the degasification zone, and the amount of mixed gas introduced.  In an example, butadiene is separated from a mixture with butylene, using anthracene oil as solvent; other suitable solvents are tetralin and dimethyl formamide.  Reference is also made to the separation of 2-butylene from mixture with n-butane using oxygenated ketonic compounds, esters, polyesters, or substituted amides.
Patent GB-1101746-A (GB)
Title: Improvements in apparatus for covering containers by the application of thermoplastic web material
Inventor: STREET LESLIE JOHN
IPC: B65B7/16
Filed: 1964-04-02
Abstract: 1,101,746. Sealing covers on containers. PARNALL & SONS Ltd. 30 June, 1965 [2 April, 1964], No. 13570/64. Heading B8C. After a web 22 (Fig. 1) has been clamped over the rim of a container 4 and heat sealed to the rim by a sealing head 5, it is cut around the container by a knife 19 resiliently connected, either with the sealing head or with the support for the container, to be operated by continued movement of the actuating means for the clamping and sealing, after the remaining parts have been brought to rest. In the embodiment of Fig. 1 the operations are performed by a ram 6 and springs 16. The clamping is effected by a ring 10. The knife 19 may be heated, and may serve simultaneously to trim the rim of the container. The knife may be mounted below the web, becoming effectve to cut the web when the container 4 is depressed by the sealing head. The sealing face 7 may be impulse-heated. When the contents 29 (Fig. 3, not shown) of the container 2 protrude from the mouth of the container, the web 22 may first be clamped between members 31, 32 before these are lowered to stretch the web over the container mouth. The containers may be mounted in pockets in a rotary table which conveys them beneath the sealing station. The proper lengths of web may be intermittently fed as described in Specification 1,075,781.