baber/WOPTO huggingface dataset:
Patent GB-269493-A (GB)
Title: Improvements in holding devices for window regulators and the like
IPC: E05F11/38
Filed: 1927-03-04
Abstract: 269,493. Ternstedt Manufacturing Co., (Assignees of Anderson, .4. C.). April 17, 1926, [Convention date]. Locking by frictional detents. - A vehicle window regulator having a self-sustaining device, such as a spring brake e actuated during lost movement between the driving member and the driven part b, is provided with two bearings for the driven member situated on opposite sides of the power-transmitting pulley &c. m. Specification 258,780, [Class 20 (iii), Doors &c.], is referred to.
Patent GB-551370-A (GB)
Title: Method of and means for the production of knitting by mechanical means
IPC: D04B39/00
Filed: 1941-05-15
Abstract: 551,370. Knitting-machines. SMITH, H. N., and SMITH, E. L. May 15, 1941, Nos. 6066/41, 6312/42 and 6313/42 [all divided out of 554,036]. [Class 74 (ii)] A knitting machine comprises a series of stitch-guard members 1 and a stitchforming member 9 or members arranged to operate successively with the members 1 which protect the old stitch from the member 9. A second series of stitch-guard members 1 may be provided for accepting the loops drawn by the member 9 through the old stitches held by the first series of guard members 1. Either the stitch-forming member may be made to travel past the members 1, or the members 1 may travel, e.g. in two travelling endless systems, past the stitch-forming member. The stitchformer may be made in the form of a hook or as two oppositely disposed hooks to permit of plain and purl knitting. Pattern-controlled means may be provided for determining whether the stitch-forming member 9 operates with one or the other series of members 1 to form a new series of loops, the loops being received by the other series of members. The members 1 may be arranged vertically, as in Figs. 4 and 12, when the stitch-forming member 9 is arranged to move vertically and laterally as well as to oscillate, so that it can not only draw the new loop through the old stitch upon a member 1, but also cast off the old stitch. A thread guide 66, Fig. 4, lays the thread across the path of the stitchforming member, and a blade 75 is arranged to be rocked periodically to hold the thread in position so that it can be taken readily by the member 9. A fixed member is provided for holding down the fabric adjacent the guard and the accepting members. In the form shown in Fig. 12, the members 1 travel in an upright position in conveyer members 4 past the stitchforming members 9, and the thread is supplied by a guide 146 which is moved both vertically and parallel to the path of the series of members 1. Alternatively, Fig. 26, the members 1 are arranged substantially horizontally, and can be rocked to ass'st in the formation of the loon and moved lengthways to assist in casting off the loop on to the receiving members. In this form, the member 9 has only to oscillate to draw the loops through the old stitches. The members 1 are mounted in two endless conveyers 226, 227, preferably in' channelled guides 230. In a modification the members 1 are pivotally and slidably mounted in stationary beds, and the stitch-forming member is moved between the two beds past the members 1. In another form, Fig. 35, the members 1 are pivotally, but not slidably mounted in endless conveyers 310 and have vertically disposed portions 312 with which the member 9 co-operates. Two or more members 9 each operating successively with the series of members 1 may be provided. Specification 536,489 is referred to.
Patent GB-715028-A (GB)
Title: Improvements in or relating to the preparation of ketones
IPC: C07C49/04
Filed: 1951-03-15
Abstract: Liquid aliphatic ketones containing 3 to 19 carbon atoms are prepared by reacting an aliphatic ketone containing 3 to 7 carbon atoms with ethylene in the presence of a peroxide activator at a temperature between 100 DEG  and 300 DEG  C. and a pressure of 50 to 2500 p.s.i.g. and recovering the desired liquid aliphatic ketones from the reaction products so formed.  The number of carbon atoms in the ketone product depends on the ketone used and the number of mols. of ethylene reacted therewith.  In examples (1) acetone is reacted with ethylene in presence of di-t.-butyl peroxide in a steel bomb heated to 145 DEG  C. and pressured with ethylene at 825 p.s.i.g. and the liquid product is fractionated yielding pentanone-2, heptanone-2 and nonanone-2; (2) methyl ethyl ketone is similarly reacted, a further portion of catalyst being added in methyl ethyl ketone at an intermediate stage and on fractionation of the products, methyl sec.-butyl ketone is obtained; (3) methyl isobutyl ketone is similarly reacted, the catalyst being added in increments and the products are separated into C8-10 ketones, C10-16 ketones and a residual mixture of C16-20 and higher ketones.  The distillation residues are viscous liquids or wax-like solids.  Methyl propyl and methyl butyl ketones are also specified ketonic reactants; the former is stated to yield ketones of the type H(C2H4)x-C.(CH3)2-CO-CH3 where x is 1-7, when reacted at 145 DEG  C. and at 800 p.s.i.g. Other examples of peroxide activators include t-butyl hydroperoxide, 2 : 2-bis(t-butyl peroxy) butane, benzyl peroxide, cumene hydroperoxide, tetralin hydroperoxide, hydrogen peroxide, butyl perphthalate or per adipate, acetyl peroxide, urea peroxide or mixtures thereof. Specifications 583,173 and 583,181 are referred to.
Patent GB-1177413-A (GB)
Title: Antibiotic Composition
IPC: A61K31/65
Filed: 1967-02-09
Abstract: 1,177,413. Tetracycline compositions. LABORATORIOS DEL DR. ESTEVE S.A. 9 Feb., 1967 [12 Feb., 1966], No. 6291/67. Heading A5B. Antibiotic compositions comprise tetracycline or its hydrochloride in admixture with mannitol or sorbitol but free from any steroid or vegetable oil. The compositions may be administered orally or rectally in the form of drageÚs, capsules, enteric coated tablets, elixirs, suspensions or suppositories. The composition may also include a proteolytic enzyme e.g. trypsin and/or chymotrypsin.
Patent GB-742068-A (GB)
Title: Improvements in or relating to electric snap-action switches
IPC: H01H5/04
Filed: 1953-03-06
Abstract: 742,068. Snap-action switches. GENERAL ELECTRIC CO., Ltd., and GOODINGS, D. B. March 2, 1954 [March 6, 1953], No. 6300/53 Class 38(5) A switch, adapted to be operated by a gliding mechanism which engages and operates a pivoted member 1 one way or the other, comprises a member 4 biased by a tension spring 6 and pivoted at 5 to the member 1 which is pivoted at 2 and a moving contact blade 11 with a turned over end which engages the end of the member 4. When the member 1 is moved in the direction of the arrow a projection 8 on it engages and carries along with it the member 4 till its end releases the spring 11 which snaps to the left closing contacts 9, 10. When the member 1 is moved-in the reverse direction, the pivot 5 moves to the left dragging the nose of the member 4 along the bent-over end of the spring 11 till the corner is passed when the spring 6 contracts to pull the member 4 and with it the spring 11 into the original position shown.
Patent GB-906517-A (GB)
Title: Improved alloy steel saw blade
Inventor: ROBERTS GEORGE ADAM
IPC: C21D9/24
Filed: 1960-02-23
Abstract: An alloy steel saw blade contains in percentage by weight: .C.0.9-0.95 .Cr.3.75-4.25 .V.2.15-2.40 .W.0.90-1.10 .Mo.1.90-2.10 .Fe and impurities.balance  Manganese and silicon may be present in amounts from 0.2 to 0.4% each.  The blades are fabricated in the usual way and are then soaked at 1600-1800 DEG  F., and tempered at 1100-1350 DEG  F., or a similar hardness may be obtained by cold-rolling.  The teeth are then locally hardened by heating to 2150-2250 DEG  F. for a few seconds, air quenching, and the blade is then tempered twice at 950-1050 DEG  F. with intermediate and final air quenches.
Patent GB-935711-A (GB)
Title: Improvements in or relating to a valve operating mechanism
Inventor: ANSCOMBE RAYMOND LEONARD
IPC: F16K35/02
Filed: 1961-02-21
Abstract: 935,711. Cams. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 9, 1962 [Feb. 21, 1961], No. 6341/61. Class 80 (3). [Also in Group XXIX] A valve actuating mechanism comprises a rotatable valve member 10, Fig. 1, having a flat surface 13, extending from a step 14, which is connected by a step 11 to a cam surface 12. A second member 16, formed with lugs 17 to prevent rotation but allow axial movement of the member, has a slot 18 connected by a wall 20 to a cam surface 23 and by a deeper wall 19 to a flat surface 22. A roller 20 is held in the slot 18 and a spring 24 urges the member 16 towards the rotatable member 10. When the member 10 is rotated in an anticlockwise direction, the roller moves towards and abuts the wall 20 and when the step 14 passes the roller the member 16 rises rapidly bringing the cam surfaces 12, 23 into contact. This movement allows a valve member 26 to move upwards rapidly. When the rotatable member is then moved in a clockwise direction the step 14 moves the roller to abut the wall 19 and the two cam surfaces 12, 23 cause a progressive downward axial movement of the member 16. The step 14 then rides over the roller and the members 10, 16 then assume the position shown. In a modification, Fig. 4, the rotatable member 30 is formed with the groove 32 housing the roller 33 and a member 36, pivoted at 38, is loaded by a spring 39 towards the rotatable member 30. Walls 41, 44 at the ends of a circular path 43 co-operate with the roller in the same manner as the walls 11, 14 above and the cam surfaces 42, 35 give the progressive movement in the same way as the surfaces 12, 23 above. The valve 26 is described as a pilot valve for a braking system.
Patent GB-111632-A (GB)
Title: Double Acting Internal Combustion Engine.
IPC: F02B75/00
Filed: 1917-05-04
Abstract: 111,632. Frice, J. B., and Ebbw Vale Steel, Iron, & Coal Co. May 4, 1917. Two-stroke-cycle engines.-In a double-acting engine, a piston 8 reciprocates in the interior of a main piston 1 and is connected to a crank 11, the throw of which is twice that of a pair of outside cranks 6 to which the outer piston is secured. Combustible mixture is drawn through non-return valves 14 and ports 17 into the interior of the piston 1 and is forced into the combustion spaces through non-return valves 15, 18 are terminal exhaust ports which may be replaced by mechanically actuated valves in the ends of the cylinder. The main piston 1 may comprise a pair of heads connected together by rods.
Patent GB-757692-A (GB)
Title: Improvements in regulating throttle devices for use in hydraulic installations
Inventor: PONSAR YVES MARIE
IPC: G05D16/10
Filed: 1952-03-11
Abstract: 757,692. Pressure relief valves. ETABLISSEMENTS NEYRPIC. March 11, 1952, No. 6359/52. Class 135. A pressure relief valve for hydraulic systems comprises a closure disc 130 coacting with a knife-edge seating 110 and loaded by a spring 140 which abuts an adjustable plate 150 and is compressed to a point just below its limit of lateral stability, so that when the closure member is raised from its seating it is substantially free laterally and is subject to a centring force due to the flow of liquid between the disc and seating.
Patent GB-327525-A (GB)
Title: Improvements in or in connection with dynamo electric machinery
IPC: H02K17/14
Filed: 1929-02-27
Abstract: 327,525. Hopkins, R. E. Feb. 27, 1929. Alternating-current induction machines.-In an asynchronous machine of the pole-changing type, the rotor is provided with a single secondary slip ring winding providing polyphase paths through the slip rings on each pole number, and the coil pitch is approximately equal to a whole and odd number of stator poles on each polarity for which the stator is designed. As shown, the winding is connected to four slip rings, and when the rings R1, R2, R3 are short-circuited together or connected through resistances in conjunction with a six-pole stator, a real three-phase circuit is established, the direction and phase of the induced currents being shown by the upper arrows. If all the rings R0, R1 R2, R3 are short-circuited together in an eighteen-pole stator, a two-phase circuit is established in accordance with the lower arrows. The coil pitch is equal to that of one pole in a six-polar connection and three poles in an eighteen-polar connection, and the coils of each phase may be connected in series, in parallel, or in series parallel.
Patent GB-845636-A (GB)
Title: Improvements in the manufacture of pigments
Inventor: COLLIER OWEN NEVILLE
IPC: C09C1/10
Filed: 1959-02-24
Abstract: The process of the parent Specification is modified in that, instead of co-precipitated mixtures, mixtures of mercury sulphide and cadmium sulphide with the optional addition of barium sulphate formed by mixing the dry substances or separately precipitated slurries, are calcined under pressure.  Specification 791,098 also is referred to.
Patent GB-1464114-A (GB)
Title: Reducing unwanted modulation surface
IPC: H04N5/217
Filed: 1975-02-14
Abstract: 1464114 Television systems POST OFFICE 14 Feb 1975 [19 Feb 1974] 6446/75 Heading H4F  The disclosure is substantially identical to that of the parent Specification. The claims relate to a modification of the arrangement described with reference to Fig. 2 (not shown) and claimed in the parent Specification. In the modification the additional divider (19) and bias circuit (21) are replaced by an analog adder 25, Fig. 3, and a multiplier 24 fed by the output of filter 20 is inserted between clamp 11 and the output of the arrangement.
Patent GB-725176-A (GB)
Title: Improvements in and relating to the mounting of seating rings in rotor discs of radial flow turbines
IPC: F01D5/04
Filed: 1953-03-09
Abstract: 725,176. Radial-flow turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. March 9, 1953 [March 22, 1952], No. 6468/53. Class 110 (3). In a radial-flow turbine an expansion ring 2 is connected to a rotor disc 4 by means of a seating ring 1 which is received in a circumferential groove 3 formed in a face of the rotor disc and locked by means of a caulking wire 5 disposed in a groove formed in the seating ring or in the rotor disc or in both the seating ring and rotor disc. The side walls of the groove for the caulking wire either diverge towards the bottom of the groove as in Fig. 4 and are provided with circumferentially-spaced recesses 7, or are only formed with circumferentially-spaced recesses 7, Fig. 2, so as to allow the caulking wire to lock positively the seating ring to the rotor disc both axially and tangentially. The recesses 7 formed in the side walls of the groove are spaced alternately and in Fig. 2 the side walls are serrated as at 8 in the portions between the recesses.
Patent GB-863731-A (GB)
Title: Wooden girder of adjustable length for the support of shuttering
IPC: E04G11/54
Filed: 1959-02-25
Abstract: 863,731. Girders. STEIDLE-SAILER, M. Feb. 25, 1959, No. 6482/59. Class 20(2) An extensible girder for supporting shuttering comprises two beams A1, A2 secured side by side within metal frames by means of wedges K, the frames comprising welded T sections B joined by a sheet metal strap C. Each beam comprises two parallel wooden beams joined by inclined struts E.
Patent GB-115476-A (GB)
Title: Improvements in or relating to Bullets.
Inventor: MOTE SYDNEY CHARLES
IPC: F42B12/78
Filed: 1917-05-08
Abstract: 115,476. Mote, S. C., and Crouch, A. P. May 8, 1917. Drawings to Specification. Plastic compositions containing india-rubber.- A composition for inserting in bullets consists (1) of 15 per cent india-rubber, 75 per cent. barytes, and 10 per cent sulphur, or (2) of 5 per cent indiarubber, 91 per cent iron or other metal dust, and 4 per cent. sulphur. Accelerators such as lime may be added to the mixtures.
Patent GB-214055-A (GB)
Title: Improvements in or relating to sun blinds and the like
IPC: E04F10/06
Filed: 1923-03-07
Abstract: 214,055. Langdale, H., and Simmons, Ltd., T. March 7, 1923. Window blinds.-The safetv chains, cords, &c. d of a sun blind bare secured to the blind facia c and to the roller or a part revolving in unison therewith so as to be wound round said roller or part automatically with the rolling up of the blind. The Figure shows the chains d secured to flanged pulleys c fixed coaxially with the blind roller. A single chain may be employed at the centre of the roller in which case the blind fabricwould be centrally divided.
Patent GB-692285-A (GB)
Title: Adhesive tapes and sheets
Inventor: HOPKINS JAMES ELLIS ARTHUR
IPC: C09J7/50
Filed: 1951-03-21
Abstract: 692,285. Adhesive-coated fabrics. VAN CLEEF BROS., Inc. March 21, 1951. No. 6767/51. Class 140. In a pressure sensitive adhesive fabric comprising a plastic backing film, a bonding coat adherent thereto, and an adhesive film of rubber and a resinous material applied to said bonding coat, the bonding coat comprises a rubber plastic of the diene polymer type or rubber, and a minor proportion, say 10 - 30 parts rubber, &c. of methylene bis-(4-phenyl isocyanate). The backing film may be of polyvinyl chloride or polyvinyl butyral, a copolymer of vinyl chloride and vinyl acetate, &c., rubber hydro-chloride, ethyl cellulose, Cellophane (Registered Trade Mark) or cellulose acetate. Suitable diene polymers are sodium-catalyzed butadiene or methylbutadiene, butadiene-acrylonitrile, butadienestyrene and chloroprene polymers. The rubber or rubber polymer is milled with a small amount of specified plasticisers, the plasticised material is dissolved in benzol; toluol, &c. and shortly before use there is added the isocyanate which may be dissolved in -orthodichlorobenzene. The coated film is dried at about 200 - 250 F., and then preferably rolled on itself, and the roll heated say for 2 hours within the above range. The adhesive is then applied. This consists of rubber or synthetic rubber and resins or resinlike material such as coumarone-indene resin, resin, hydrogenated resin and esters or mixtures thereof, with or without zinc oxide, carbon black, &c. The adhesive coating is dried at about 150F.
Patent GB-869514-A (GB)
Title: Improvements relating to fluid actuated testing apparatus
Inventor: BUSBY LESLIE ROY
IPC: G01M3/28
Filed: 1958-03-04
Abstract: 869,514. Testing strength of hollow-ware. PORTABLE BALES Ltd. March 2, 1959 [March 4, 1958; May 27, 1958(2)], Nos. 6835/58, 16774/58 and 16775/58. Class 106 (2). [Also in Group XXVIII] Fluid pressure-actuated testing apparatus comprises a body 10 provided with high and low pressure cylinder B, A, a differential ram 11 for displacement within the cylinders, a pipe line 17 incorporating a non-return valve 16 for connecting the high pressure cylinder B to a source of fluid pressure, and a control valve 19 for controlling a supply of fluid under pressure to the low pressure cylinder A, spring means 25 or fluid pressure means (not shown) associated with the low pressure cylinder being provided for assisting in the return of the differential ram 11 to its initial position. A tap 24 to be tested is mounted on a pipe 22, which forms one of the four arms of a union 103, the others being connected to a supply pipe 17, the high pressure cylinder B and a pressure gauge 14 respectively. In use, mains water is supplied through the pipe 17 and the non-return valve 16 to fill the cylinder B and the tap 24, thus subjecting the tap to an initial test at mains pressure. Subsequently, the valve 19 is opened to supply air under pressure to the pressure side 113 of the low pressure cylinder A, thus generating a higher pressure in the cylinder B for a pressure test at, for example, 300 lb./sq. in. When the test is completed, the mains water supply is turned off, the valve 19 operated in order to exhaust the air from the cylinder A and the valve of the tested tap 24 opened. This tap is then removed and another placed in position. A coiled spring 25 returns the ram 11 to its initial position when the cylinder A is exhausted. In other embodiments, a second differential ram may be used to obtain a higher pressure; the taps may be tested at two pressures, e.g. 350 lbs./sq. in. and 625 lbs./sq. in. by the use of two pressure controllers connected in parallel in the air supply line; and the spring 25 may be omitted, the exhausted air from the cylinder A being directed into the left-hand side of the cylinder to cause retraction of the ram 11. A device for mounting a range of straight through valves of various lengths is also described (Fig. 6, not shown), a further differential piston device being used to obtain a sealed joint under the testing pressure. If desired, all the testing may be performed under hydraulic or under pneumatic pressure. The apparatus may also be used for testing tubes and gas cylinders.
Patent GB-471744-A (GB)
Title: Improvements in the manufacture and production of chlorbutadiene
IPC: C07C17/08
Filed: 1936-03-07
Abstract: Chlorbutadiene is produced by reacting a gas containing vinyl-acetylene made from electric are acetylene and containing a large proportion of hydrogen, with hydrochloric acid in the presence of a solution of cuprous chloride containing salts of alkali or alkaline earth metals or ammonium.  The vinyl-acetylene may be made by passing electric are acetylene over a solid catalyst consisting of a compound of monovalent copper and a salt of an alkali or alkaline earth metal or ammonium, such as active carbon impregnated with cuprous and ammonium chlorides.  In an example, the dilute vinyl-acetylene is led through a packed column against a solution of cuprous and ammonium chlorides in hydrochloric acid.  Specifications 395,131 and 451,442 are referred to.
Patent GB-164813-A (GB)
Title: Improvements in means for supplying additional air in internal combustion engines
IPC: F02D9/00
Filed: 1920-03-08
Abstract: 164,813. Watson, H. B., and Billetop, T. C. March 8, 1920. Vaporizers, external.-The induction pipe A, B is in two parts and is entirely surrounded by an exhaust jacket C, D. Supplementary air is admitted to the two branches of the .induction pipe through pipes F which traverse the exhaust jacket D. The supply of air is controlled by a valve E which is connected to the main throttle so that it is open only at medium speeds. The valve may be in the form of a shell which moves over a hollow conical plug as shown, or a piston valve with a tapering port.
Patent GB-848804-A (GB)
Title: Apparatus for loading and unloading materials-handling pallets
IPC: B65G57/00
Filed: 1958-03-04
Abstract: 848,804. Loading and unloading pallets. TISS-METAL LIONEL-DUPONT & CIE. March 4, 1958 [March 13, 1957], No. 6946/58. Class 94(1). A device for loading or unloading pallets includes means for clamping together a layer of parallelepipedic articles for removal from or stacking on a pallet. In the loading operation, articles such as boxes 1a move along a roller conveyer 2 to a driven accelerating roller 11 which passes them to a stop 13 against which they form a row. The row is transferred by a reciprocating pusher 14 to a horizontal sliding plate 16 and is followed by further rows until a layer is formed. The plate moves horizontally to bring the layers between the arms 23a, 23b of a vertically slideable carrier 22, the latter being in its upper position 22a. Plates 24 mounted on the carrier arms advance inwards to clamp the layer, the arm 23 carrying two such plates pivotally mounted to accommodate minor irregularities in the layer side. The carrier is raised slightly, the plate 16 withdraws, and the carrier descends releasing the layer when it rests on the pallet 19, on an earlier deposited layer. The carrier may have a layer locating stop ,Fig. 11 (not shown), positioned by movement of the plate 16. the stop contacting the leading articles as the plate 16 advances towards the carrier and the plate 16 carrying stops which engage the trailing articles to consolidate the layer against the first stop. In unloading, the carrier clamps the uppermost layer resting on a pallet and raises it. The plate 16 advances beneath the layer and carries it, after release, opposite the pusher 14 for ejection a row at a time onto a further conveyer (not shown) opposite the conveyer 2. In an alternative form (not detailed) the plate 16 may be stationary and the carrier have both vertical and horizontal motion.