baber/WOPTO huggingface dataset:
Patent GB-854139-A (GB)
Title: Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydrides
Inventor: BALLARD DENIS GEORGE HAROLD
Filed: 1958-04-11
Abstract: Polyamides, which may be fibre-forming, are prepared from N-carboxy-a -amino acid anhydrides which have themselves been prepared by the reaction of phosgene with an a -amino acid of average particle size not greater than 5 microns (see Group IV(b)).  They may also have been purified by recrystallisation from an organic solvent containing 5-20% of its colume of an N-substituted-formamide or -acetamide as in Specification 854,140 [Group IV(b)].  Polymerization may be effected by known methods. In Examples (1) to (3) a -methyl L-glutamate N-carboxy anhydride (prepared and purified as above) is polymerized in methylene chloride or methylene chloride/dioxan solution by the addition of tri-n-butylamine and in (4) D-alanine N-carboxy anhydride is polymerized in nitrobenzene solution by adding n-hexylamine. Specifications 646,033, 675,298 and 675,299 also are referred to.ALSO:N-carboxy-a -amino acid anhydrides are prepared by reacting phosgene with an a -amino acid, the average particle size of which is not greater than 5 microns.  In one embodiment the reaction is effected in a diluent and the mixing of the reactants is so controlled that there is substantially no excess of either reactant present at any time, substantially equivalent total amounts of reactants being used.  This is preferably effected by adding at appropriate rates the phosgene and a suspension of the finely-divided amino acid as two different streams to a stirred diluent which is a solvent for phosgene.  The two streams may be mixed immediately before being added to the diluent.  The phosgene may be used as a gas, liquid or in solution, e.g. in a solvent boiling at 60 DEG C. or over, preferably 60-110 DEG C., although ones outride this range are specified.  When effecting the reaction in a diluent the concentration of amino acid is preferably kept relatively low, e.g. 3 to 15% by weight, although high concentrations of the N-carboxy anhydrides may be built up in the diluent by carrying out the reaction in a series of stages, HCl being removed after each stage, e.g. by air-blowing.  The amino acid may be reduced to the necessary finely-divided state by spray-drying an aqueous solution or by grinding in a ballmill or colloid-mill in the presence of a dry organic liquid. Specifications 646,033, 675,298, 675,299 and 854,140 are referred to.
Patent GB-309318-A (GB)
Title: Improvements in or relating to travelling cases, trunks, portmanteaux or the like for use in connection with motor road and like vehicles
IPC: A45C5/04
Filed: 1928-04-19
Abstract: 309,318. Mc @ April 19, 1928. Lid. - In a luggage case container 1 with a vertical lid 3 hinging by means of hooks 9 about a rod 8, and sliding horizontally inwards upon ledges 10, entry of moisture and the like is prevented by rebates 4 and 11.
Patent GB-758964-A (GB)
Title: Improvements in and relating to wedges for the winding slots of dynamo-electric machines
Inventor: SIMONS JOHN SPENCER
IPC: H02K3/487
Filed: 1954-04-22
Abstract: 758,964. Securing coils for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. April 20, 1955 [April 22, 1954], No. 11698/54. Class 35. A slot wedge has at least one corrugation so as to increase the wedge resiliency when located between the slot sides. The Figure shows a corrugated wedge 1 having a multiple layer of resin-bonded laminae of insulating material, e.g. glass fibres impregnated with a polyester resin. If required, the wedge may be provided with ventilation holes. Specification 613,650, [Group IV (a)], is referred to.
Patent GB-899963-A (GB)
Title: Furnace installation for firing solid fuel
IPC: F23J1/06
Filed: 1960-04-01
Abstract: 899,963. Solid fuel furnaces. BRONSWERE N.V. April 1, 1960 [April 1, 1959], No. 11698/60. Class 51 (1). The front of a combustion chamber 2 fed from a hopper 1 is closed by a blind water-cooled wall 4 having projections 17 on its rear face forming channels so that air passing into the combustion chamber 2 below the wall 4 can flow upwardly into the fuel mass. The products of combustion pass through the finned water tube rear wall 5 to the secondary combustion chamber 16, and the grate 7 is cleaned by a clinker pusher 8. The projections 17 may comprise bars welded to the rear face of the double wall 4, or the rear plate may be formed with ridges 17<SP>1</SP>, Fig. 3.
Patent GB-125470-A (GB)
Title: Improvements in or relating to Automatic Guns.
IPC: F41A19/34
Filed: 1916-08-19
Abstract: 125,470. Vickers, Ltd., Challenger, G. H., and Savage, H. A. Aug. 19, 1916. Machine guns.-Relates to gasoperated guns in which the spring- controlled striker is loosely mounted in the striker post or other member for operating the breech bolt, and consists in energizing the spring of the striker during the forward move ment of the member instead of during the recoil or rearward movement as usual. Fig. 1 shows the invention applied to a Lewis gun, the striker post B of which is fitted with a loosely mounted striker C having a collar d co-operating with a sear d<1>. The gun is thus arranged for firing between the propeller blades on aircraft by controlling the sear d<1> by means of a cam on the propeller shaft as described in Specification 124,486. According to the present invention, the striker spring D, mouted in a casing D<1> extending from the breech block A, is cocked during the latter part of the forward movement of the striker post relatively to the breech block by the engagement of a lever E<1> with an incline b<2> which energizes the spring from the rear through a plunger E. During the rearward movement of the breech block following discharge, the lever E' engages a projection b<3> to relieve the stress on the spring and enable the striker post to engage a shoulder on the striker to move the firing-pin within the breech block.
Patent GB-527795-A (GB)
Title: Improvements in electric circuit arrangements comprising thermionic valves
IPC: H04N5/44
Filed: 1939-04-20
Abstract: 527,795. Valve circuits. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. April 20, 1939, No. 11918. [Class 40 (v)] A valve circuit for separating a signal input at 22, 23 into two components, e.g. a vision signal and a synchronizing signal, comprises a valve in which the control grid 4 allows some electrons to pass to a main electrode 3 and deflects the other electrons to a subsidiary electrode 5. The valve also contains accelerating and screening grids 7, 8, 9 and is generally similar to the valve described in Specifications 491,994 and 498,598. The output from the anode 3 is fed to the control electrode of a vision tube 25 whilst the output from the electrode 5 is fed to a valve 27 which controls suitable time-base circuits. The circuit can be used to furnish from the two electrodes 3, 5 a push-pull output. According to the Provisional Specification the circuit can be used to separate combined vision and speech currents.
Patent GB-636382-A (GB)
Title: Improvements in and relating to door locking means
IPC: E05B63/04
Filed: 1948-04-30
Abstract: 636,382. Door latches. CLARK, J. A. April 30, 1948, No. 11921. Addition to 591,914. [Class 44] The locking arrangement for motor vehicle doors claimed in claim 7 of the parent Specification is modified by providing the sliding cam member with two oppositely facing cam surfaces of similar shape but opposite sense so that the cam member may be reversed to adapt the latch for right or left hand doors. The outside handle 1, Fig. 1, has a boss 3 formed inside the rose plate with opposite projections 7 for engagement in opposite slots in a sleeve member 4 carried on the squared spindle 2 and urged into the connected position by a spring 23. The outside handle is disconnected from the spindle by rotation of the inside handle in the direction opposite to that for releasing the latch, causing axial displacement of the spindle 2 to free the projections 7 from engagement with the sleeve 4. The inside handle 9 is rotatable on the spindle 2 and carries one or more spaced projections 14, Fig. 5 (two as shown), co-operating with an equivalent number of spaced cam faces 12 or 13 on either end of the cam member 10, which is slidably but not rotatably mounted on the spindle 2. A collar 15 on the cam member 10 is cut away to provide shoulders 16, Fig. 2, arranged to co-operate with fixed stop surfaces 17e, Fig. 5, formed on the inside rose plate 17. In operation when the inside handle is turned to release the latch, the projection 14 abuts the end 18 of the cam surface 13 on the member 10 which is thereby rotated and turns the spindle 2 to release the latch. When the inside handle is turned in the opposite direction, one of the shoulders 16 on the cam member abuts one of the stops 17e and is thereby prevented from rotating. The projections 14 therefore slide along the cam surfaces causing axial displacement of the inside handle and of the spindle 2 which is connected to it through packing washers 21 and a circlip 19. The inside handle is retained in this position by a slight hollow 13b on the cam surface into which the projection 14. falls. To reverse the direction of operation of the handle the cam 10 is reversed so the cam surfaces 12 at the other end co-operate with the projections 14. A spring 26 acting against a sleeve of the inner handle prevents rattling.
Patent GB-352969-A (GB)
Title: Improvements in and relating to electrical regulating apparatus
IPC: H02P9/18
Filed: 1930-04-15
Abstract: 352,969. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Thompson, L. W. ; 53, Baker Avenue, Schenectady, New York, U.S.A.) April 15, 1930, No. 11928. Convention date, April 19, 1929. [Classes 35 and 38 (iv).] Alternating current induction machines.-An electric regulating system, controlling, for example, an electrical characteristic of a circuit or machine, comprises an alternating current motive device having a single phase inducing member 16, an induced member 18, and flux-modifying means 19 for producing a rotating magnetic field and selectively changing the direction of rotation thereof in the induced member. The member 19 may be any closed circuit conductor and by its means one side or the other of the pole face of the inducing member is shaded according to the required direction of motion. The excitation of a synchronous alternator is controlled so that its output voltage may be maintained constant by a commutator 6 associated with resistances 7 in the exciter field circuit. Three stepped brushes 9, 10, 11 in series each with a resistance 13, 14, 15 are moved over the commutator by the induced member 18 of conducting material. The winding 17 of the inducing member 16 is excited from one phase of the circuit 2. The flux-modifying means, a copper plate 19, is carried by a pivoted arm 20 which is controlled by a torque motor 23, of the kind described in Specification 296,402, [Class 38 (iv), Electric supply and transmission systems &c.], and a spring 30 so as to shade the pole of the inducing member completely when the voltage of the circuit 2 is normal, and, by movement to one side or the other, to produce appropriate changes in the excitation upon variation of voltage from normal. Antihunting means consist of a dashpot 40, connected by a spring to the arm 20, containing a plunger driven by the induced member through gearing 34 and a rack 36. In a modification suitable for controlling a direct-current circuit a solenoid plunger is connected to the arm 20. Other modifications may be made suitable for other regulatable conditions such as speed, temperature, light, &c., under manual or automatic control.
Patent GB-200940-A (GB)
Title: Improvements in devices for printing transfers on textile goods
IPC: B41F16/02
Filed: 1922-04-28
Abstract: 200,940. Pannett, D. J. F. April 28, 1922. Transferring designs.-A machine for applying transfer stamps to textile goods comprises a fixed, electrically heated block or iron and a hinged platen operated by a rock-shaft and adapted to receive the articles to be marked and press them against a transfer strip intermittently fed between the platen and the iron. A transfer strip 1 passes from a supply spool 2 to a receiving spool 3 between a fixed electrically heated iron 9 and a platen 10 which is mounted on a pivot 11 and is raised to effect the transfer by a link 16 connected to an arm 15 on a rock-shaft 14 operated by a treadle 13. During the downward movement of the platen, the strip 1 is fed forward by a pair of rollers 8, 18 the former of which is driven by ratchet mechanism comprising a ratchet disc 22 and a pawl-carrying disc 19 connected by a link 29 to a plunger 30 which is raised by an arm 32 on the shaft 14 and depressed by a spring 33. The ratchet disc 22 is locked after each operation by a tooth 27 on a spring-actuated detent lever 26 engaging notches 25 in a disc 24 fast to the disc 22, and the detent lever is depressed to release the ratchet disc by means of a roller 21 on the disc 19. This ratchet mechanism mav be mounted on the shaft of the feed-roller 8 or, as shown, on a separate shaft connected to the feedroller by change gearing 37. To allow a bundle of articles to be placed on the platen and to be removed successively as the printing proceeds, the platen proper 10 may be supported by springs 47 from the hinged member 10<1>. With this arrangement means are provided to delay the feed of the strip 1 until the platen is lowered sufficiently to bring the articles clear of the strip. These means may comprise a slotted connection, controlled by a spring 52, between the link 29 and plunger 30, and a stop 28<1> on the detent lever 26 adapted to be engaged by the roller 21 to limit the idle stroke of the disc 19, so that during the latter part of the rise of the plunger 30, the spring 52 is compressed. During the initial part of the fall of the platen the plunger 30 therefore moves idly. An alternative arrangement to delay the feed of the strip consists in mounting the arm 32 loosely on the shaft 14 and actuating it from the shaft by a spring stronger than the spring 33, a stop being provided to arrest the rise of the plunger 30 before the treadle completes its downward movement. Instead of actuating the feed-roller by the mechanism above described, the treadle may rock a double-armed spring-controlled lever, the ends of which are connected by a chain passing over a wheel coupled to the feed-roller shaft through a freewheel clutch. The ends of the chain may be adjustably connected to the lever by bolts and slots.
Patent GB-411652-A (GB)
Title: Improvements in or relating to heat insulated containers particularly for liquified gases
IPC: F17C1/04
Filed: 1933-04-24
Abstract: 411,652. Cold and heat retaining vessels. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.- (Assignees of Zenner, G. H. ; 57, Hartwell Road, Buffalo, New York, U.S.A.) April 24, 1933, No. 11972. Convention date, Sept. 23, 1932. [Class 29.] Vessels for storing liquefied gases &c. comprise an inner thin walled container 12, preferably spherical, and a strong outer pressureresisting casing 10 spaced therefrom so as to provide an insulating space, the inner container being supported by metal distance pieces 13, 14, 15 having only point or line contact with the vessels. The distance pieces may consist of wavy strips, Figs. 2 and 3, secured along their inner edges to the wall of the inner container and preferably notched as at 17 along their outer edges, or may consist of conical members 23, 24, Figs. 6 and 7, formed in or attached to the inner container wall. The supports are placed close together near the bottom of the vessel where the pressure is greatest.
Patent GB-989238-A (GB)
Title: Improvements in disc brakes
IPC: F16D63/00
Filed: 1962-03-29
Abstract: 989,238. Disc brakes. DUNLOP RUBBER CO. Ltd., F. BEUCHLE, E. MEIER, H. OBERTHUR, E. HENNIG, and C. PRESS. March 29, 1962, No. 12002/62. Heading F2E. A disc brake comprises a rotatable disc 10 and a cylindrical member 12 which forms an additional axially extending braking surface, a non- rotatable housing comprising friction pads 16 and a mechanism to effect engagement thereof with the disc, friction material 24 to functionally engage the axially extending braking surface and a separate mechanically-operated mechanism for effecting such engagement. As shown in Fig. 2 the pads 16 which are bonded or otherwise secured to backing plates 18 and detachably secured to pistons 15 are moved into engagement with the disc 10 by admission of pressure fluid into cylinders 14. The friction material 24 is secured to a flexible band 22 the ends of which are pivotally secured to a rocking lever adapted to tighten the band on actuation of a hand-brake lever. In another embodiment, Fig. 3, the brake band 25 having friction pads 26 is positioned adjacent the inner periphery of the cylindrical member 12 and is forced into contact therewith by levers 30, 31 acting on pressure members 27. In a further embodiment, Fig. 6, pads 51, 52 are forced into contact with axially spaced friction surfaces 41, 42 by fluid-pressure introduced into cylinder 44. An external brake band 55 is urged into contact with the cylindrical member 43 by a lever mechanism similar to that used in the embodiment of Fig. 2.
Patent GB-418147-A (GB)
Title: Improvements in looms for weaving tape and like narrow fabrics
IPC: D03D35/00
Filed: 1933-04-25
Abstract: 418,147. Smallware looms. FRENCH, G. F., Chester Road Mills, Chester Road, Manchester, and WARBURTON, S., 95, Seaford Road, Lower Broughton, Salford, Lancashire. April 25, 1933, Nos. 12022/33 and 14977/34. [Classes 142 (ii) and 142 (iii).] In looms for weaving tapes &c., the shuttles are driven with gradual acceleration &c. during each pick by means of a cam g, which may be a groove on the periphery of a cylinder on a half speed shaft d geared to the crank shaft. The cam g engages a bowl on and rocks a quadrant toothed lever h pivoted on a shaft i and gearing with a pinion j secured to a bush m in which a shaft l is slidably keyed. The shaft l is flexibly connected to a shaft p, which is journalled in a bearing p<1> on the batten c. When there are only two rows of shuttles, the lower shuttles are actuated by a rack bar connected to a sliding bar having its opposite ends connected to the free ends of a sprocket chain passing over a sprocket wheel r keyed on the shaft p. The upper shuttles are driven by a rack geared to teeth on the sliding bar. When there are more than two rows of shuttles, the rack bars therefor are operated by leather bands adjustably connected to disc wheels connected by slip friction clutches to the shaft p, the clutches allowing each disc wheel to be forcibly rotated about its shaft for adjustment of the shuttles. The shaft carried by the batten may transmit motion to the disc wheels or chain wheel through a swash plate clutch. The batten may be suspended, or may slide as shown on rollers y, z engaging fixed horizontal rails x, x<1>. One of the rollers y is carried by an arm c<1> and stay c<2>. The batten is operated by connecting rods b<2> from the crank shaft and is connected by brackets c<3> to lever mechanism c<4>, c<5> for operating the take up. According to the earlier Provisional Specification, the leather bands may be connected to a drum.
Patent GB-573694-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A11/00
Filed: 1943-07-23
Abstract: 573,694. Automatic firearms. VESELY, J., July 23, 1943, No. 12035. [Class 119] A sub-machine gun or like automatic firearm is so made that the barrel body and butt are adapted to be quickly assembled or disassembled, without individual stripping, by means of joints of the kind comprising interengaging interrupted annular flanges. The invention is shown applied to a weapon having features described in Specifications 571,027, 573,210, 573,212, 573,213, 573,214, 573,215, 573,429 and 573,501. The body 1, carrying a magazine 5 and containing the breech-block 26 has a cylindrical sleeve 12 fitting over its rear end and secured by a removable locking pin 13, the sleeve forming part of a housing 10 in which the trigger-mechanism is mounted. An inturned flange 15, Fig. 6, formed by three lug portions 15a separated by three groove portions 15b, is provided on the rear end of the housing 10. Corresponding lugs and grooves are formed on a spigot 17 protruding from a plate 16 fixed to the forward end of the butt 3. A fastening of the bayonet-joint type is thus provided, by which the butt may be readily attached to the body by bringing the lugs on the one part into register with the grooves on the other and then rotating the butt relatively to the body. A spring-pressed catch 21 is slidable in a slot in the sleeve 12, and locks the butt to the body by engagement in a groove in the spigot 17 when the bayonet-joint connection has been made. The breech mechanism 4 is similar to that described in Specification 573,215, but is modified by the provision of a buffer plunger 25 which is slidable in a cavity in the breech-block 26 and is pressed backwardly by a spring 28. A breech-block recoil-rod 30 is pivoted at 29 to the plunger 25, and passes through a slit in the end wall of the housing 10. The outer end of the rod must be inserted through an aperture in a boss projecting from the spigot 17 on the butt, before the butt and body are connected together. When the parts are assembled, the rear end of the rod engages in a socket piece 32 which is slidable in a tube 33 under the pressure of a recoil spring 38. The rear end of the barrel 2 and the front end of the body 1 of the gun are also detachably connected by a joint consisting of a pair of interrupted annular flanges 40 extending inwardly on the body 1, and a pair of outwardly-extending interrupted matching flanges provided on a collar 42 fixed to the barrel. Locking of the barrel and body against relative rotation is effected by a spring catch 45 having a portion 46 adapted to engage in a recess in the forward end of the body 1.
Patent GB-1472687-A (GB)
Title: Apparatus for the wet treatment of cloths
IPC: D06B3/28
Filed: 1975-03-24
Abstract: 1472687 Liquid treatment of endless material ARGELICH TERMES YC A SA 24 March 1975 [27 March 1974 5 April 1974] 12121/75 Heading D1L In the wet treatment of cloth in endless rope form by circulation through a closed vessel by means of a liquid jet, the vessel 1 is in the form of an elongate tubular storage section 2 connected via an elbow section 4 to an upper section 6 housing the oxerflow inlet 9 to return duct 8 incorporating jet chamber 14, the duct 8 passing beneath the storage section 2 and connecting therewith via inlet section 3, the cloth being drawn from the section 2 by a winch 13 located either in the upper section 6 (as shown in Fig. 2) or just above the elbow section 4 [Fig. 1 (not shown)], the winch 13 delivering the cloth either above the overflow inlet 9 (Fig. 2) or below (Fig. 1), liquid being drawn from the section 2 by pump 15 and recycled to the overflow inlet 9 or jet chamber 14 via heat exchanger 18. In the embodiment of Fig. 3 (not shown) excess liquid in section 6 is recycled to the inlet of section 2 via dwell tank 25.
Patent GB-1512770-A (GB)
Title: Control device for a valve
IPC: F16K37/00
Filed: 1977-03-23
Abstract: 1512770 Valves APPLICATION DES GAZ 23 March 1977 [30 March 1976] 12290/77 Heading F2V The control knob 6 of a valve (not shown) is coupled to an intermediate member 12 which has a projecting rib 15 arranged to engage a fixed abutment 16 in the open and closed positions of the valve, the coupling between the knob 6 and the member 12 being such that when the rib 15 engages the abutment 16 on closing the valve, the knob 6 may be rotated further independently of the member 12. As shown the coupling comprises a ratchet and pawl. A disc 10 attached to the member 12 carries reference marks which register with a fixed reference.