baber/WOPTO huggingface dataset:
Patent GB-1425576-A (GB)
Title: Foot forms
IPC: A43D3/02
Filed: 1972-05-13
Abstract: 1425576 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 14 May 1973 [13 May 1972] 22585/72 Heading A3B A foot form includes a body portion 2, a heel portion 20 mounted for pivotal movement relative to the body portion 2 between a foreshortened position and an extended position,. locking means which releasably secure the heel portion in either of its positions, and operating mechanism 40 mounted on the heel portion and operable by a continuous movement in a first direction to cause the locking means to release the heel portion and to move the heel portion from the foreshortened to the extend position, and by a continuous movement in a second direction to cause the looking means to release the heel portion and to move the heel portion from the extended to the foreshortened position. As described the body portion 2 consists of a base plate 3, a pair of side plates 4 and a forepart 6, and the heel portion 20 consists of a heel part fixed to a plate 22 which is mounted for pivotal movement between the side plates 4 about pivot pin 16. The operating mechanism 40 includes a handle 44, U-shaped member 43, a pair of blocks 46 having teeth 47 and two pins 48, 50 carrying rollers (only roller 49 shown in Fig. 1). The operating mechanism 40 is held against plate 22 by a spring mounted in handle 44 so that the teeth 47 enter recesses 10, 12, 14 to lock the heel portion 20 in its extended, intermediate or foreshortened position respectively. To move the heel portion from the extended position shown in Fig. 1 to the foreshortened position the handle 44 is pushed downwardly, initial movement of the handle 44 causing the mechanism 40 to pivot about the roller on pin 50 to release the teeth 47 from the recess 10 and further movement causing the plate 22 to pivot about pin 16 to move the heel part to its foreshortened position. When the handle is released the teeth 47 enter recesses 14 to lock the heel portion. To move the heel portion back to its extended position the handle is pushed upwardly which initially cause the mechanism 40 to pivot about roller 49 on pin 48 to release the teeth 47 from the recess 14 and then causes the heel portion to move back to its extended position.
Patent GB-1003820-A (GB)
Title: Production of caprolactam
Inventor: TOMIC ERNST ALOIS
Filed: 1964-06-01
Abstract: Caprolactam is prepared by contacting cyclohexanone oxime for 0.09-3 seconds with a fused mixture of the pyrosulphate and bisulphate of potassium or sodium, in which the pyrosulphate content is 40-95%, at 240-390 DEG  C. The mixture may be maintained in its fused state by the addition of water.  The oxime may be forced into the fused mixture by means of a gas which does not react in the system, e.g. He, N2 or H2.  Alternatively the molten oxime and fused salt mixture may be sprayed simultaneously into the reaction chamber, or a stream of fused salt mixture may be injected into a stream of molten oxime. The oxime may be added in a solvent which does not react in the system, e.g. a hydrocarbon or chlorinated hydrocarbon.ALSO:A fused mixture of the pyrosulphate and bisulphate of potassium or sodium, in which the pyrosulphate content is 40-95%, is used as catalyst in the preparation of caprolactam from cyclohexanone oxime, by a process in which the oxime is contacted with the mixture for 0,09-3 seconds at 240-390  DEG C.  The mixture may be maintained in its fused state by the addition of water.
Patent GB-737186-A (GB)
Title: Improvements in or relating to pilger mill apparatus for the manufacture of seamlessmetal tubes
Inventor: MCLAY GAVIN SMELLIE
IPC: B21B21/04
Filed: 1952-09-09
Abstract: 737,186. Rolling-mandrels. STEWARTS & LLOYDS, Ltd. Aug. 20, 1953 [Sept. 9, 1952], No. 22636/52. Class 83 (4). In a pilger rolling mill, the mandrel 28, Fig. 2, is inserted in a transverse slot 29 in the mandrel head 23 so shaped that there is no endwise movement, and is locked in the slot by a member 21 slidable in the mandrel head to engage in an axial hole 22 in the end of the mandrel. The member 21 is carried by a rod 20 slidable in an extension 15 of the piston of the resilient means and is normally urged into engagement with the mandrel by a spring 26. The rear end of the rod 20 carries a pin 17 passing through slots 18 in the extension 15 and engaged in bayonet sockets of a plate 19 engageable by a lever 30 to retract the rod 20 for release of the mandrel. The lever 30 may carry a roller 33 engageable by a cam 38 (not shown) on retraction of the mandrel to release the member 21, or the lever may be actuated by manual, pneumatic, hydraulic or electric solenoid means. The mandrel head 23 may be attached to the extension 15 through an intermediate member 24 which is slidable on the mandrel carriage 2 and acts as a guide for the rod 20. A stripper block 43 is provided on the mandrel. In a modification the rod 20, Fig. 5, is retracted automatically by a lever 30b actuated by a cam 34b and engaging a pin 47 passing through the rear end 16 of the rod 20. Specifications 715,908 and 729,136 are referred to.
Patent GB-1065484-A (GB)
Title: Improvements in or relating to current discharge gas lasers
IPC: H01S3/034
Filed: 1965-05-28
Abstract: 1,065,484. Gas lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 28, 1965 [June 2, 1964], No. 22762/65. Heading H1C. A D.C. current discharge gas laser comprises an optical cavity having a convex mirror 2 and a convex, concave or plane mirror 3 arranged so that the envelope of the ray paths of light reflected back and forth between the mirrors has a smaller cross-section near mirror 3 than near mirror 2 and an insulating duct 8 whose inner surface substantially coincides with said envelope. The envelope is ideally part of a hyperboloid of revolution but a conical duct may be used. It is stated that the duct 8 confines the current discharge to be within the envelope thereby permitting the use of higher gas pressure to obtain an increased intensity of output. The mirrors have dichroic coatings 4, 5. The gas may be helium with 10% neon or all neon. Dimensions and operating data are given. The tube 1 may be bent to make the mirror axes coincide.
Patent GB-238725-A (GB)
Title: Improvements in water-containing devices for holding and displaying culled flowers, applicable also for drinking fountains for poultry
IPC: A01K39/026
Filed: 1924-09-26
Abstract: 238,725. White, A. F. Sept. 26, 1924. Flower vases and like receptacles; f l o w e r holders or supports.- A device for supporting cut flowers comprises a water receptacle a closed at top and bottom and with holes f in the sides communicating with a tray or vase b in which the water level is maintained constant. The flowers are supported in a removable gauze frame g resting on the top of the tray b. One or more similar frames h may be mounted on the reservoir a. Two or more of the devices may be superposed, the top of one reservoir socketing into the base of the one above it. Handles may be provided on the sides of the tray for carrying, or when the device is intended for use as a flower stand for use on graves or as a drinking-fountain for poultry, in which latter case the frame g is removed, and legs c are provided for penetrating the soil.
Patent GB-939457-A (GB)
Title: Timing delay and reset circuit
Inventor: RYWAK JOHN
IPC: H01H47/18
Filed: 1962-06-14
Abstract: 939,457. Time delay and reset switching systems. NORTHERN ELECTRIC CO. Ltd. June 14, 1962, No. 22887/62. Class 38 (4). [Also in Group XL (c)] A current responsive device 3 is provided with a time-delayed operation and a rapid reset by a circuit arrangement in which, upon closure of a switch 11, a capacitor 2 is charged through resistors 1, 12 and diode 5 and, after a predetermined time interval controlled by adjustment of the resistor 1, the potential of the circuit point e reaches the value required for operation of the device 3. During closure of the switch 11, the circuit point 14 is positive with respect to the point 13 and hence a transistor 7 is cut off. When the switch 11 is opened the point 14 falls below the potential of point 13 which causes the transistor 7 to conduct and the capacitor 2 to discharge through a resistor 8. At the same time a diode 6 arrests the negative voltage swing due to the inductance of the device control coil 4, the time constant of the circuit including members 4 and 6 being made equal to or greater than that of the circuit including members 2, 7 and 8, so that the diode 5 is reverse biased during the discharge of the timing circuit.
Patent GB-833366-A (GB)
Title: Improvements in or relating to apparatus for operating self-excited compounded synchronous generators in parallel
IPC: H02J3/38
Filed: 1956-07-24
Abstract: 833,366. Running A.C. generators in parallel. SIEMENS-SCHUCKERTWERKE A.G. July 24, 1956 [July 25, 1955; May 29, 1956], No. 22906/56. Addition to 785,664. Class 38 (4). In a supply system as described in the parent Specification, wherein the excitation circuits of two self-excited alternators connected in parallel are coupled on the A.C. sides to minimize unequal distribution of load, parallel operation of two dissimilar machines is now made possible by the use of balancing transformers for coupling their excitation circuits. To compensate for the difference in generator characteristics the secondary windings 8, 88 of the voltage and current operated transformers 3, 33 are connected through a variable ratio balancing auto-transformer 10. In a modified circuit, Fig. 2, the voltage-operated primary 44 is tapped and connected to primary winding 4 through a balancing transformer secondary winding 15, fed from the supply by primary winding 17.
Patent GB-1062516-A (GB)
Title: Improvements in surgical robes and like garments
Inventor: DANIELS SIDNEY
IPC: A41D13/12
Filed: 1965-05-28
Abstract: 1,062,516. Garments. A. C. DANIELS & CO. Ltd. Sept. 9, 1965 [May 28, 1965], No. 22912/65. Heading A3V. A gown, particularly for wear by patients in transit to the operating theatre, comprises a generally rectangular piece of material with armholes 2 and 3 at adjacent corners and a further armhole 4 intermediate those corners. The corners 8 and 9 are preferably curved to fit snugly on the shoulders.
Patent GB-268652-A (GB)
Title: Improvements in and relating to extrusion heads for the production of artificial filaments
IPC: D01D1/06
Filed: 1926-09-17
Abstract: 268,652. Levy, L. A. Sept. 17, 1926. Apparatus for making filaments.-An extrusionhead for use in the spinning of artificial silk &c. comprises a pair of plates a, b, Fig. 2, provided with opposed cavities c, d and suitably bolted together, filtering-material e secured between the plates, and a series of outlet passages in the plate b, each leading to a spinning nozzle i but controlled by a screw-down valve q or other adjustable device in such manner that the amount of solution passing to the nozzle may be regulated or even cut off. As an alternative, the amount of solution passing may be regulated by providing a greater or shorter length of a narrow passage, for which purpose the threaded portion of the valve q, Fig. 5, is extended so as to overlap the outlet passage j, and the crests of the threaded portion are removed to form a narrow passage t. The spinning nozzles i are mounted on jointpieces k, Figs. 2 and 4, screwed in the plate b, and are secured thereto by screwed caps l; the nozzles i are flanged, being supported, together with discs p of filtering-material, between rubber washers o', n<1>, Fig. 4, and secured in the caps l by means of screwed collars o. A piece h, Fig. 2, of metallic gauze supports the filtering material c.
Patent GB-688564-A (GB)
Title: Improvements in electric couplings or connectors of the plug and socket type
IPC: H01R13/60
Filed: 1950-09-21
Abstract: 688,564. Two-part couplings. GOODFELLOW, W. L. Sept. 20, 1951 [Sept. 21, 1950], No. 23130/50. Class 38 (i). A plug-and-socket connector comprises a catch C, having a hook c<SP>1</SP>, mounted on the wall of the socket B by means of a screw c, and a slot d formed in the wall of the plug A and coinciding with the catch C, the slot d having a depression d<SP>1</SP> at its end. When the plug A is so far pulled out of the socket B that the contacts are disconnected, the hook c<SP>1</SP> will be engaged in the depression d<SP>1</SP>, the catch C now holding the plug and socket in these relative positions. The earthing contact a<SP>3</SP> may have a spring-pressed ball co-operating with recesses in the socket at the two positions of the plug. The Specification also refers to the plug-pins having insulated ends.
Patent GB-149918-A (GB)
Title: Improvements in devices for stretching and drying curtains and other fabrics, also applicable for use as a clothes-rack
IPC: D06F59/08
Filed: 1920-08-06
Abstract: 149,918. Olson, C. K. Aug. 6, 1919, [Convention date]. Stretching.-A collapsible device, more particularly intended for stretching curtains during drying but applicable as a clothes-rack, comprises vertical posts 5 one of which is provided with pins 6, struts 16 pivotally connected to the posts and to a central bar 18, horizontal 'bars 10 having pins 11 and fitted within slots 9 formed in the posts, and an adjustable vertical bar 12 having pins 14 and secured to the horizontal bars by clamps 13. The posts are connected to one another by flexible cords 7, 8, the cords 7 at the upper ends of the posts being connected to the central bar by cords 20. One of the struts 16 is connected to the central bar by a cord 19. The device is preferably made of wood and the cords may be secured to the ports &c. by staples. During drying, the curtains are stretched over the pins secured to the various members of the device.
Patent GB-215651-A (GB)
Title: Improvements in self-cleaning lavatory basins
IPC: E03C1/048
Filed: 1923-09-15
Abstract: 215,651. Guth, W. T. Sept. 15, 1923. Lavatory basins.-A device for cleansing lavatory basins by flushing consists of a tap 16 discharging into a split tube 15 by which the water is forced to traverse a ledge 14 surrounding the basin and narrowing towards the middle of the front. In a modified form the tap is supplied by a pipe connected to both the hot and cold water pipes.
Patent GB-677544-A (GB)
Title: Improvements in or relating to textile twisting mechanisms for twisting machines
IPC: D01H13/16
Filed: 1949-09-08
Abstract: 677,544. Textile twisting machine "knockoff" mechanism. BARMER MASCHINENFABRIK AKT.-GES. Sept. 8, 1949 [Sept. 8, 1948], No. 23326/49. Class 120(ii) A textile twisting machine of the kind comprising a support, mounted rockably in the vertical plane, for a spindle urged by weight or spring action against a driving means, a reciprocating thread guide for laying the thread on to a winding bobbin, and a disconnection device controlled by a knocking-off or stop motion including a thread feeler, for automatically disconnecting the drive to the spindle, and also if desired, the drive to the winding bobbin in the event of thread breakage, wherein, means are provided for deriving the disconnecting movement from the reciprocating movement of the thread guide. In the arrangement shown, 1 is a spindle support pivoted at 2 and carrying, on a lower arm 3, a double twist spindle 4. An upper arm 5 carries a thread guide eye 6 and a guide roller 7. The support 1 is rockable between two stops 9 and in one end position the wharve of the spindle 4 is in contact with driving belt 10 and in the other end position the wharve is removed from the driving belt. Disposed above the arm 5 is a winding bobbin 8 driven by a hollow driving roller 14 and a friction roller 15. Beneath the roller 14 is a trough shaped support 16 which on rocking of the spindle support in the disengagement direction lifts the driving roller 14 from the friction roller 15. There is also located above the arm 5 a reciprocating thread guide 17, 18 having a lever 19 pivoted thereto, held in an almost horizontal position by a spring 20 and having at its free end a cam member 21 having two inclined faces. Cam member 21 cooperates with a second cam member 22 disposed at the free end of a lever 23 pivoted on the arm 5. The lever 23 may be rocked between two end positions in one of which cam 22 is in the path of the reciprocating cam member 21. The lever 23 is loaded by a small weight 24 which acts as a toggle mechanism. On the axle 25 of the lever 23 is pivoted a feeler constituted by a light lever 26 applied against the thread by a counterweight 28. When the thread breaks, feeler 26 rocks upwards. the lug 29 strikes the arm 30 of lever 23 and tilts the latter to bring the cam 22 into the path of the reciprocating cam 21. The cams engage, causing the spindle support 1, 3, 5, to be rocked into the disengagement position thus disconnecting the drive to the spindle 4 and the winding bobbin 8. Movement of the spindle support 1 is under the action of a toggle mechanism comprising a spring 11. An alternative arrangement shows a weight operated toggle mechanism for the spindle support.
Patent GB-240032-A (GB)
Title: Improvements in or relating to wire brushes
IPC: A47L17/00
Filed: 1924-11-26
Abstract: 240,032. Abraham, L. C. Nov. 26, 1924. Scrapers, pan and like. - Bent wires b are secured at both ends by a common fastening means to the end of a handle a to form closed loops. The loops are preferably formed from one long piece of crimped metal wire wound to form a succession of loops which are secured to the handle bv a staple and clamped by a flattened ring c. The wound wire may be twisted into double-loops of figureof-eight form which are afterwards bent at their middle.
Patent GB-385018-A (GB)
Title: Automatically acting fire protecting device for cinematographs
IPC: G03B21/18
Filed: 1931-08-21
Abstract: 385,018. Kinematograph apparatus. GROTHE, A., Zentral-Theater, D³lmen, Westphalia, Germany. Aug. 21, 1931, No. 23580. [Class 97 (i).] An automatically acting fire-protecting device for kinematographs is characterized in that a bow embracing the film strip from above is provided above the picture gate and feeler rollers are arranged one on the film strip below the gate and the other on the driving belt, the bow and the rollers being adapted by means of a common lever system to release a spring mechanism effecting the closing of the fireprotection flap in the path of rays from the projection lamp and the operation of an acoustic signal. As shown in Fig. 1, the loop 4 formed by the film strip 3 in front of the feed sprocket 2 is covered by a bow 5 in such manner that one end of the bow is on the entrance point of the gate and the other end is above the feed sprocket. The bow 5 is fixed on a three-armed lever 6 on the second arm of which is a counterweight 8. The arm 9, Fig. 2, is a locking element for the spring mechanism 10 of an alarm device. On the axle 11 of the spring mechanism 10 is keyed a wheel 12 having a pin 13 connected by a cord 15 to the protecting flap 14, an abut. ment pin 17 holding the pin 13 in the lower position. If the film tears above the gate, the film end engages a gripper 16 and forms a loop which lifts the bow 5 and releases the spring mechanism, which actuates an acoustic signal. The position of the protecting flap 14 is indicated by a hand 37 connected to the wheel 12, the other hands on the dial constituting a clock. A rack 18 fixed to the bow 5 is slidable in a head 19 of the lever 6 and is engaged by a pinion 20 operated by a knob 22. Adjustment may be alternatively effected by a screw and nut device. A jockey roller 23 on the lower portion of the film is carried on a pivoted flap 24 which in lowered position bears on the fireprotection channel 26 of the take-up spool 27, and on which is an abutment 28 situated within the range of an abutment 29 on the bar 8. On tearing of the lower film strip the fire-protecting channel 26 is closed, the fire-protecting flap 14 is shut, and the alarm device is actuated. A jockey roller 32 running on the driving belt 31 from the electric motor 30 is carried on an arm 33 on a shaft 34 carrying a lever 35 the end of which is situated within the range of an abutment 36 of the bar 8, so that breaking of the driving belt 31 will also operate the protection mechanism.
Patent GB-699487-A (GB)
Title: Improvements in and relating to vertically sliding windows
IPC: E05F1/16
Filed: 1951-10-10
Abstract: 699,487. Windows. YOUNG, W. Sept. 29, 1952 [Oct. 10, 1951], No. 23588/51. Class 20(iii) In a window having a counterbalancing spring wound and unwound by a, rod c formed with a scroll with which the nut to which one end of the spring is anchored engages, the rod, Fig. 1, on the casing e, f, Fig. 5, containing the nut and spring is secured to and depends substantially centrally from the bottom glazing channel b so that it not only actuates the counterbalance but also stabilizes or helps to guide the window during opening and closing.
Patent GB-615821-A (GB)
Title: Improvements in and relating to apparatus for the treatment of water and other liquids
IPC: G05D11/13
Filed: 1946-08-12
Abstract: 615,821. Treating liquids. FROUDE, R. H. Aug. 12, 1946, No. 23805. [Class 46] Apparatus for the treatment of water or other liquids, for example, ion-exchange or filtering comprises in construction, a plurality of separate valves or other control means, a measuring device responsive, to a condition of the liquid and adapted to complete an electric circuit to start a time-control mechanism when the condition attains a predetermined value, a holding switch for the time-control mechanism in parallel with said electric circuit, and a switching mechanism driven by the time-control mechanism for operating the valves or other control means in correct sequence and timing to effect a predetermined cycle of operations, the holding switch being tripped in after the time-control mechanism has been running for a predetermined time, after which the valves or other control means are operated by the switching mechanism, and the holding switch being tripped out when the switching mechanism has completed its cycle, thereby stopping the time-control mechanism. In the arrangement shown a mercury manometer 14 is connected across the inlet and outlet pipes 2, 5, of a filter 1 by connectiogs 2a, 5a and a source of electric energy is connected to the mercury column 16. An adjustable contact 17 is arranged in the lowpressure limb 17 of the manometer so that when resistance to flow through the filter reaches a predetermined value the contact 17 engages the mercury column, and a circuit is completed through a time-control mechanism 19. The mechanism is in series with a holding switch 45 by means of which a drum 20 is driven after the time-control mechanism has been running for a predetermined time. The drum comprises seven discs each with a part made of conducting material for engagement by a spring finger, so that when a finger engages a conducting surface one of solenoids 36 to 42 is energized. Each solenoid controls a pilot valve (not shown) which in turn controls the operation of one or more valves 3, 4, 6, 9, 11, 12 or the motor 13 of an air blower, whereby the filter is subjected to the operations of draining, air scouring, backwashing and re-starting. Instead of contact strips for use in operating the valves, cams or like means may be used. Two or more units may be operated simultaneously by one control device. A delaying device such as a bi-metallic switch may be used in conjunction with the time-control mechanism.