baber/WOPTO huggingface dataset:
Patent GB-1066161-A (GB)
Title: Process for the production of esters
IPC: C08G63/44
Filed: 1965-04-01
Abstract: Esters of aromatic acids are prepared by heating a mixture of an aromatic nitrile, a polyhydric alcohol and water in the presence of a lead compound as a catalyst.  A number of lead compounds are specified.  Preferably, the polyhydric alcohol and water are heated with the lead compound to a temperature up to 50 DEG  C. below the reaction temperature and the aromatic nitrile is then added.  The reaction may be effected at 170-280 DEG  C., preferably under atmospheric pressure.  Examples describe reactions between (1) terephthalonitrile and ethylene glycol, (2) isophthalonitrile and ethylene glycol, (3) terephthalonitrile and propylene glycol, (4) benzonitrile and ethylene glycol, and (5) terephthalonitrile and glycerol. Other specified nitriles are m- and p-tolunitrile, m- and p-nitrobenzonitrile, m- and p-chlorobenzonitrile, m- and p-cyanobenzoic ethyl ester and naphthonitrile.
Patent GB-378458-A (GB)
Title: Improvements in or applicable to circular knitting machines
IPC: D04B9/46
Filed: 1931-05-12
Abstract: 378,458. Knitting-machines. MILLS, J. A., The Limes, Clumber Street, East Kirkby, Nottinghamshire. May 12, 1931, No. 13996. [Class 74 (ii).] The necessity for reciprocating the needle cylinder or knitting cams of a circular machine when making heel or toe pockets or like work is obviated by imparting a complete revolution to the cam ring alternately with a like movement of the needle cylinder in the same direction. The needle cylinder A and cam ring B are mounted upon independently rotatable sleeves C, D. The sleeves C, D are connected to a driving ring G by an epicyclic gear train and means are provided for holding either sleeve as required. The sleeve holding means preferably comprises projections L, M on the sleeves C, D and detents O, P. The detents O, P are mounted upon a rocking shaft N, which when the heel and toe or like work is commenced is actuated by a cam-operated member R to bring the detent into engagement alternately with the two projections L, M. Brake bands W, V may be arranged about the sleeves C, D for reducing the speed before engagement of the detents and projections.
Patent GB-873473-A (GB)
Title: A container for supplies for dropping from aircraft
Inventor: CLARK FRANK MILES
IPC: B64D1/14
Filed: 1957-05-02
Abstract: 873,473. Containers for dropping from aircraft. BLACKBURN AIRCRAFT Ltd. June 16, 1958 [May 2, 1957], No. 14042/57. Class 4. [Also in Group XXXIV] A container for dropping solid or liquid stores from aircraft comprises an outer, preferably corrugated, shell 1 formed with a rigid nose portion 2 above which is located two spaced partitions 3, 5, the partition 5 being free to slide within the shell. A block of shock absorbing material 4 e.g. resin-bonded honeycomb material, is positioned between the partitions and an inner container 18 for the stores, preferably sub-divided into segments as shown in Fig. 3, is positioned above portion 5 and an annular pad 19 prevents the lower edge of the container from being trapped between partition 5 and container 1. A fixed portion 9 holds container 18 in place and a parachute 10 is housed in the upper open end of the shell and retained by cross-laced cords 16, the rigging lines 11 of the parachute being attached to ears 12 on the shell. A static line (not shown), is provided for attachment to the aircraft whereby the parachute is automatically withdrawn when the container is dropped. Upon impact of nose 2 with the ground the container 18 will move down within the shell 1, bringing about failure of block 4 so that the shock of impact is not transmitted to the contents of container 18. Such movement is facilitated by the provision of layers of waxed paper 20 between container 18 and shell 1.
Patent GB-870304-A (GB)
Title: Etching apparatus and method of etching
Inventor: MARTZ CHARLES SEELY
IPC: C23F1/08
Filed: 1959-04-24
Abstract: 870,304. Etching. MARTZ, C. S., and BURNEY, J. K., [trading as TASOPE CO.]. April 24, 1959, No. 14061/59. Class 100(2) A method of etching comprises the steps of throwing etchant in a spray in one direction, disposing a workpiece in the etchant spray at an acute angle to the direction of spray, catching the etchant as it deflects from the workpiece in still another direction, and immediately throwing the caught etchant back in the direction opposite to the direction of spray deflection so as to redistribute said etchant on the workpiece. A cubical tank 10, Fig. 1, containing etching liquid 15 and supported on one edge, is provided with a hinged lid 18 having a handle 26 and supporting an electric motor 23 rotating a clamping device 21 for the work-piece 22. Air from a pipe 16 bubbles through the liquid, air from a blower enters through a duct 31, and the air is removed through a pipe 32. Paddles 34 on a driven shaft 33 throw the etching liquid against the workpiece. Mounted on a shaft 40 rotated by an electric motor 50 is a turbine distributer 35 comprising a plate 36, Figs. 1 and 3, and a plurality of vanes 41 extending from the plate. Each vane comprises a web 42 to which is attached a substantially S-shaped plate element 43, of which the leading trough 45 is provided with apertures 46. Liquid deflected from the work-piece is caught by the plate 36 and returned against the work-piece through the apertures 46, or by the trailing troughs 44 of the vanes, which also throw against the work-piece liquid from the paddles which does not reach the workpiece directly. Specification 870,305 is referred to.
Patent GB-597626-A (GB)
Title: A device for moving a helical spring axially without rotation, more particularly for use in the manufacture of flexible tubes
IPC: B29D23/00
Filed: 1938-05-11
Abstract: 597,626. Making flexible tubes. CHERNACK, A. E. May 11, 1938, No. 14096. [Class 99 (ii)] [Also in Group VIII] In a machine for making a flexible tube, a helical wire coil 1 is fed to strip-winding mechanism by a device comprising a screw 31 arranged within the coil and having at two sections 31b, 31c threads of greater diameter than the coil, whereby it is mounted in bearings 6, 7. The screw is driven by a sprocket 9 on a sleeve 8 mounted in the bearing 7, and keyed at 34 to the threads 31c. The threads 31a engage the coil, but are of smaller diameter. The coil is prevented from rotating by grooved pulleys 3, 4, 5, the coil engaging in the grooves which may be rubber-lined. The pressure of the pulleys 4, 5 on the coil may be adjusted by screws 36. The coil is covered by a helically wound strip 11a of " Cellophane " (Registered Trade Mark), followed by a strip 10s of cotton cloth from reels mounted on the sleeve 8 and adhesive is applied to both sides of the " Cellophane " strip (see-Group VIII). The windings are pressed into the open coil by three pairs of rollers 12 carried by arms 8d, Fig. 6, to form a groove in which is wound a fine linen thread 37 tightened by passing it over rods 38. The groove is filled by a coarser thread 40. The tube is prevented from rotating by three loaded, grooved rollers 13. The tube is finally coated by passing it twice through a bath of rubber latex in a heated chamber, is passed through a talc dusting box and wound on to a drum.
Patent GB-981536-A (GB)
Title: Process for the preparation of 2,4-diamino-6-cyano-triazines
Inventor: SCHULZ HERMANN
IPC: C07D251/18
Filed: 1962-04-12
Abstract: Compounds of the formula <FORM:0981536/C2/1> where R1-R4 are hydrogen or C1- 6 alkyl are prepared by reacting ammonium cyanide or a metal cyanide with a compound <FORM:0981536/C2/2> where R5-R7 are C1- 6 alkyl radical and X(-) is an anion.  Examples prepare 2,4-bis-ethyl-amino -, 2,4 - bis - isopropylamino -, 2 - ethyl-amino - 4 - isopropylamino - and 2,4 - bis - diethylamino - 6 - cyano - 1,3,5 - triazine.  Reference has been directed by the Comptroller to Specification 944,063.
Patent GB-1026579-A (GB)
Title: Improvements relating to stamping-out sheet or slab material
IPC: B26F1/40
Filed: 1964-04-06
Abstract: 1,026,579. Cutting beds. SCHON & CEI G.m.b.H. MASCHINENFABRIK. April 6, 1964 [April 9, 1963], No. 14181/64. Heading B4B. A cutting bed arrangement for a cutting-out press includes a table 1 with upstanding guide elements such as bolts 2, a frame 3 enclosing and guiding the material to 5 be cut, and a base 4 interposed between the table and frame, the frame having parts such as holes in end flanges coacting with the guide elements, so that while the frame cannot slide over the table top it can be raised relative thereto. This permits adjustment of the base by sliding it between the table top and frame, so as to distribute wear caused by the cutter over the surface of the base, and permits the use of worn bases.
Patent GB-1460554-A (GB)
Title: Preparation of 2,5-hexanedione
IPC: B01J27/00
Filed: 1975-04-07
Abstract: 1460554 2,5-Hexanedione DIAMOND SHAMROCK CORP 7 April 1975 [8 April 1974] 14216/75 Heading C2C 2,5-Hexanedione is prepared by oxidizing allylacetone by reacting it with a palladium chloride catalyst in a mixed solvent system comprising water and carbon tetrachloride in the presence of copper chloride and oxygen, at least part of the copper chloride being supplied as cupric chloride.
Patent GB-317136-A (GB)
Title: Improvements in apparatus for games of skill for amusement
IPC: A63F9/02
Filed: 1928-05-15
Abstract: 317,136. Bradshaw, G. May 15, 1928. Table games.-A games apparatus comprises a series of targets at one of which a player projects a missile, the targets changing in a predetermined manner after each successful game. A coin or token, which may be the projected missile, may be returned to the successful player, or the particular target may have no scoring value, in which case the coin is stored and returned to the player if he successfully plays at a subsequent target having a scoring value. A coin 52 is inserted in a slot in a propelling device 32 and rests with its edge on the bottom thereof and its side against a spring-operated arm 42. It is drawn towards the player by the scissors-like trigger 34, Fig. 3, and in the extreme position the coin is released by opening the arms of the trigger, the spring- operated arm 42 driving it forward along a curved path 29 towards a target slot 14. The coin is pressed above its centre by the lever in order to give it a rolling motion. The propelling device is pivoted to allow the coin to be aimed, and unsuccessfully driven coins fall through a slot 31 into the interior of the casing. The targets proper consist of slots 11 in a disc 7 connected to a shaft 6 by gearing 8, 9. To the same shaft is secured a wheel 2 having radial coin slots 3 and peripheral teeth 4. A successfully aimed coin passes through one of the target slots 11, down a guide 15 and lodges in one of the coin slots in the wheel 2, being retained therein by a projection 5. In passing down the guide the coin moves a lever 23 and so rocks an escapement 22 working on the teeth 4 of the wheel 2 and allows this wheel to move to the extent of one tooth, which it will tend to do since the coin slots in one side are full and those in the other empty. At the lower part of the wheel 2 is situated another guide 18 by which the coins are returned to the player. 'The coins are held in the coin slots by a trip plate 25 eccentrically mounted on the hub of the wheel 2 and held against stops 27 on that wheel by a spring. As the wheel 2 is revolved step by step, the trip plate 25 is eventually disengaged from one of the stops by reason of its eccentric mounting and is drawn back to engagement with the next stop by the spring, the position immediately before disengagement corresponding to the display of a target of scoring value at the opening 14. The coins are thus discharged from the slots and returned to the player. The frequency with which this occurs' depends on the arrangement of the stops 27. Counting devices 64 and 65 may register the operations of the projecting mechanism and coin-. holding wheel respectively. Electrical contacts for causing the ringing of a bell or the illumination of a number may be fitted to the target disc 7, and a replica of the latter may be fitted outside the machine. The coins may be returned to the player by an attendant.
Patent GB-142757-A (GB)
Abstract: 142,757. Robinson, R. Nov. 25, 1919. Closed solid-fuel stoves; refuse-burning stoves; fuel-holders; boilers, arrangement of. - A stove adapted to burn briquettes of peat, turf, moss, litter, sawdust, and the like either individually or combined consists of a casing a with a base b, a cover i, and a fuel support consisting of three vertical legs m and a false bottom l. Air is supplied by an inlet c and pipes e, which may be fitted with regulators. With the fuel-holder arranged as shown, the stove burns one block k of fuel; if the fuel-holder is inverted, two blocks are burnt; if it is removed, three may be burnt. When packing the fuel into the stove, it is prevented from closing the aperture c by a rod placed centrally and vertically in the stove; this is then removed, leaving a clear space serving as a flue. If a water-heating loop g of pipe is fitted, a larger pipe is used instead of a rod, and is slipped over the loop g. The cover i has a pot-hole lid i<1>, and the bottom has an ash-pan p<1> on guides p.
Patent GB-851676-A (GB)
Title: Improvements in or relating to tools for assembling retaining rings on shafts, pins and the like
IPC: B25B27/20
Filed: 1959-04-27
Abstract: 851,676. Assembling circlips on shafts &c. WALDES KOH-I-NOOR Inc. April 27, 1959 [June 16, 1958], No. 14281/59. Class 61. In a tool for dispensing and applying circlips R, Figs. 5, 7, to grooves g of shafts S, a forked blade 22a, 22b carries an applicator plate 23 with a recess 24, Fig. 9, to engage the lowest circlip R on a flexible stack rod 15, and a slide 33 having flanges 34, 35 to engage the underside of the lowermost circlip is retracted by the flexing of the stack rod 15 when other rings R of the stack engage the shaft S. The tool comprises a sheet metal handle 11, Fig. 2, having upper and lower flanges 12, 13 and a thumb plate 14. The circlips R are fed along a T-section guide 16 by a spring- loaded slide 17 and are fed to the applicator plate 23 over a flexible stack rod 15 which forms an extension of a flange of the guide 16. The slide 33 is normally urged to its forward position by a leaf spring 38. The forked blade 22a, 22b forms an extension of a cranked bar 20 welded to the flange 13 of the handle 11. The blade 22a is bevelled at 26 to permit the tool to be withdrawn sideways after insertion of a circlip and the blade 22b has an extension 25 which is shaped to engage the groove g in the workpiece S and act as a guide for the insertion of the tool.
Patent GB-215978-A (GB)
Title: Improvements in or relating to machines for making envelopes
IPC: B31B19/00
Filed: 1923-05-31
Abstract: 215,978. Carlaw, D., and Carlaw & Sons, Ltd., D. May 31, 1923. Envelopes, making.-A cone 14 is given a combined rotational and translational movement to pick up an envelope blank, transfer it to a gummer, and deliver it to an ejection point. Several cones may be mounted on the vertical axis 2 of the machine to increase the output. The invention is shown applied to a machine for attaching window-blanks to envelopes. The cones are mounted on spindles 13 carried by a member 11 secured to the shaft 2 and are rotated by the engagement of the gears 17, 18. A pump plunger 22 works in a cylinder 21 incorporated in the cone and is operated by the engagement of a lever 28, connected by pins 29 to the plunger sleeve 23, with a cam surface 32. On passing over the blank-pile 40, the plunger operates to suck the topmost blank against the orifice 34, and a gripper 50 mounted on a spindle 51 seizes the leading edge of the blank, one of the rollers 53, 54 mounted on the spindle 51, engaging the cam 55 to close the gripper. A hole is provided in the gripper 50 so that in the event of a failure to pick up a blank, the suction is broken and the plunger 22 recedes under the action of the spring 24. Gum is applied to the blank by a pad 60, which is operated through levers 80, 81 and a link 82 from a lever 84 which is secured to a pin 85. An arm 86 secured to the pin 85 carries a projection 87 engaged by a collar 27 on the plunger sleeve 23. A link 69 drives a pump 65 through pawl and ratchet gearing from the lever 84, a pipe 64 connecting the pump 65 and the pad 60. If the plunger 22 recedes owing to failure in picking up a blank, the collar 27 does not engage the projection 87, and no gum is applied to the cone. Surplus gum passes into the tank 61 and returns by a pipe 61<a> to the supply tank 62. Provision is made for adjusting the quantity of gum. A window blank is picked up by the gummed envelope blank when the cone passes over the pile 70, and the gripper 50 is then released by a cam 56. The plunger is allowed to recede slowly during the rotation of the cone by leakage of air through a fine hole 35 in the cylinder end, and as the cone reaches a delivery table 75, the plunger is operated to blow the blank from the cone. The delivery table 75 is provided with a travelling band 76 which removes the blanks. Fingers 9, 9<a>, pivotally mounted on the arm 8 press the blank close to the cone 14 during rota. tion. Adjustment of the cones relative to the blank piles may be made so that different sized blanks may be gummed.
Patent GB-150805-A (GB)
Title: Improvements in and connected with locks
IPC: E05B63/12
Filed: 1919-06-06
Abstract: 150,805. Lashmar, H. T. June 6, 1919. Two bolts directly operated by key; key, retaining until bolt is operated.-A lock of the ordinary fixed type, or in the form of a padlock, and applicable for use on doors, furniture, bags, &c. comprises two superimposed bolts adapted to be moved in opposite directions by successive half-turns of the key. Figs. 1 and 2 represent the back and front halves of the lock respectively. The key passes through into the back portion 1 of the lock and by a half-turn arranges the tumblers 10 and moves the bolt-plate 4 upwards, the parts 5 of the bolt-plate crossing the apertures 6. The key is then withdrawn into the front portion 2 of the lock, and, by a further half-turn, arranges a second set of tumblers 10 and moves the boltplate 8 downwards, the parts 9 of which also cross the apertures 6. The sets of tumblers are arranged between the bolt-plates, so that the end of the key bit which moves the bolt-plate in the first stage of the operation, actuates the innermost tumbler of the second set during the second stage, the other end of the key bit serving a double function in a similar manner. The key is prevented from turning further after each stage of the operation, and cannot be withdrawn from the lock until both bolt-plates are actuated. An outer box, with a keyhole placed at an angle in relation to the keyhole of the lock, may be fixed to the entrance plate of the lock, so that the key has to be inserted and turned through a partial revolution before it can enter the lock fully.
Patent GB-1031153-A (GB)
Title: Improvements in or relating to the production of spheroids
Inventor: INGLEBY BRYAN EDWARD
IPC: G21C3/64
Filed: 1962-04-13
Abstract: In a process of making nuclear fuel compounds (see Division G6), UO2 powder, carbon black and aluminium stearate are ground in a rubber lined ball mill, and the resultant granules of UO2 and carbon, bound by the al. stearate spheroidized as in the parent Specification. Spheroids of 230\sB10 microns diameter are sieve selected, placed in molybdenum boats in a furnace at 300 DEG  C., 1 micron vacuum, and heated to 1450 DEG  C.  This temperature is maintained for thirteen hours during which time the reaction and gassing are completed, and the spheroids sintered.  The resultant compound is UC, or UC2, depending on the proportion of carbon to UO2 in the original mix.ALSO:A process for producing compound nuclear fuel spheroids comprises mixing together at least two materials both, some or all of which are subsequently to be reacted to form the fuel compound, grinding the mixture, spheroidizing the particles by the method claimed in the parent Specification, heating the spheroids to inter-react their constituents, and sintering the compounds so produced.  UO2 powder, carbon black and aluminium stearate are spheroidized and sintered to form the UC or UC2.
Patent GB-1414443-A (GB)
Title: Process for the manufacture of 4-hydroxy-3-nitrobenzoic acid
IPC: C07C205/59
Filed: 1974-04-02
Abstract: 1414443 Preparation of 4-hydroxy-3-nitrobenzoic acid HOECHST AG 2 April 1974 [3 April 1973] 14489/74 Heading C2C The invention comprises a process for the manufacture of 4-hydroxy-3-nitrobenzoic acid by nitration of 4 hydroxy benzoic acid with nitric acid, wherein the nitration is carried out from 20 to 40‹ C. with 25 to 35% by weight nitric acid and the addition of a catalytic amount of an inorganic nitrite. Preferably the 4 hydroxy benzoic acid used is finely divided.
Patent GB-966886-A (GB)
Title: A circuit breaker with arc runners and arc chute
IPC: H01H9/34
Filed: 1961-04-21
Abstract: 966,886. Arc-rupturing in switches. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. April 21, 1961 [April 21, 1960], No. 14512/61. Heading H2B. In an arc-chute having arc-runners and at least one insulating barrier or partition parallel to the arc, the partition extends to the region of contact separation and is in engagement with the arc-runners. As shown, a chute has side walls 7, 8, 12 and a partition 11, 6 which has its lower edge 9 close to the contacts 1, 3 and engages the arc runners 4, 5 which are wider than the partition. The edge 9 is " sharpened " to divide the arc and the gaps on each side of the partition 6 are approximately equal in width to the partition. Parts 6, 7 and 8 are preferably made of higher quality insulating material than parts 10, 11, 12 and the latter may form a separate detachable unit.
Patent GB-1035314-A (GB)
Title: Improvements in or relating to dough mixing and apparatus therefor
Inventor: PICKLES KENNETH
IPC: A21C1/14
Filed: 1962-04-16
Abstract: 1,035,314. Mixing under reduced pressure. GEORGE TWEEDY & CO. Ltd. April 16,1963 [April 16, 1962 (2); Nov. 6, 1962], Nos. 14552/62; 14554/62 and 41876/62. Heading B1C. Apparatus for mixing and developing dough under reduced pressure comprises a closed chamber 26 mounted in a frame 24 tiltable on a horizontal axis such that it may be moved from an extreme, discharge position (Fig. 3, not shown) to a half-tilt position in which fats are fed into the chamber, and thence to a vertical position in which measured quantities of water and flour are supplied from a tank 20 and hopper 22. A canopy 71 is raised so that a lid 146 may be slid laterally along tiltable tracks 142 and sealingly fixed on the chamber 26. Air is then evacuated from the chamber through a pipe 176 and the dough mixed by a powerdriven motor plate 30, the frame 24 being kept steady by a plunger cylinder 47.
Patent GB-312486-A (GB)
Title: Improvements relating to variable speed driving mechanisms
IPC: F16H61/02
Filed: 1928-05-18
Abstract: 312,486. Burman & Sons, Ltd., and Briggs, T. H. May 18, 1928. Controlling variable-speed gearing.- Control mechanism for change-speed gearing suitable for vehicles comprises a hand lever f, Fig. 2, adapted to be moved in a transverse slot in a gate a so as to engage either of two transmission levers z singly. The engaged lever g is subsequently moved in slot b or slot c in the plane of Fig. 1 so as to operate either of two rods 9, Fig. 4. 'The lever f carries a cross peg k, which in the neutral position shown in Fig. 2 engages the transmission levers simultaneously. The pivot ends of the levers g are pressed together by springs h and are kept apart by a distance piece j and washers i. The pivot end of lever f is formed with swells f<1> at both sides to facilitate the selective lateral pivoting. The rods 9, Fig. 4, operate striking levers p, z. The lever p has a notched quadrant p<1> engaged by a locking-lever v pulled against it by a suitable spring w. The lever z has a similar quadrant 7 and locking pawl 8 actuated by a suitable spring.