baber/WOPTO huggingface dataset:
Patent GB-1093677-A (GB)
Title: Method of and apparatus for producing monovalent or polyvalent carboxylic acid esters
Inventor: FALK GEORG
IPC: C07C69/80
Filed: 1966-07-19
Abstract: Monovalent or polyvalent carboxylic acid esters are obtained by reacting a carboxylic acid or a carboxylic acid anhydride with an alcohol in the presence of a catalyst, characterized in that monohydric or polyhydric alcohols having a higher boiling-point than water are used and that the pressure in the reaction vessel is reduced continuously or in stages during the course of the reaction. An excess of the alcohol reactant, e.g. 4-7% by wt., may be employed and the catalyst used may be sulphuric acid and an entraining agent may be present.  The vacuum applied at the beginning of the reaction is generally between 500 and 200 Torr and as the reaction progresses the temperature is raised by about 2-10 DEG  C. per 5 minutes and in the same period the pressure is reduced by about 10-150 Torr, suitably down to a vacuum of about 100 Torr.  In examples isononyl stearate, diisononyl phthalate and ethylene glycol distearate are prepared.
Patent GB-282043-A (GB)
Title: Improvements in gas-filled electric lamps
IPC: H01K1/50
Filed: 1927-12-01
Abstract: 282,043. General Electric Co., Ltd., (Assignees of Patent Treuhand-Ges. fiir Elektrische Gl³hlampen). Dec. 7, 1926, [Convention date]. Addition to 248,680. Arc lamps.-Solid ammonium halide is introduced into gas-filled lamps, in such a way as to decompose slowly when the lamps are in use, to form a mixture of hydrogen and a volatile halogen compound in accordance with the parent Specification. The ammonium halide may be contained in a vessel having a capillary opening and located in the exhaust tube in the foot of the lamp bulb. Specification 201,525, [Class 39 (ii), Electric. lamps, Incandescent], is referred to.
Patent GB-1254434-A (GB)
Title: Apparatus for and method of measuring sheet properties
IPC: G01B21/20
Filed: 1968-10-16
Abstract: 1,254,434. Monitoring a property of a sheet material. INDUSTRIAL NUCLEONICS CORP. Oct.16, 1968 [Nov.13, 1967], No.32443/71. Divided out of 1, 254, 432. Heading G1A. The disclosure is the same as that of the Specification 1, 254,432 but the claims are directed to a method and apparatus for measuring with a gauge a property of a moving strip in which the gauge is scanned transversely of the sheet a number of times, the indications sensed by the gauge for a number of discrete zones succeeding one another across the sheet are separately stored, the deviation of each stored property value from the average value of the property across the whole width of the sheet is determined, and the deviation is combined algebraically with the instantaneous scanning gauge indication.
Patent GB-622925-A (GB)
Title: Improved means for testing helically toothed gears
IPC: G01B5/20
Filed: 1945-12-01
Abstract: 622,925. Testing gears. BROWN & SONS (HUDDERSFIELD), Ltd., D., and TUPLIN, W. A. Dec. 1, 1945, No. 32535. [Class 106 (ii)] Apparatus for load-testing meshed pairs of helically-toothed gears in which the gears are driven under load comprises means to apply to the respective gear shafts equal and opposite axial loads if the shafts are parallel or, if the shafts are not parallel, an axial load to one shaft and an equal and opposite load, imposed partly by axial thrust and partly by journal load, to the other shaft. The low- and highspeed shafts, band c respectively, of a pair of helical gears are mounted in a casing and the low-speed shaft carries a driving pulley d incorporating a combined thrust and journal bearing, the thrust member of which acts through springs on a cross-member f. A pair of links g are pivotally connected at one end to the cross-member and at their other ends to arms h fast on a shaft i which also carries a pair of arms n connected by means of a link p to a combined thrust and journal bearing r, the thrust member of which is fast upon the high-speed shaft c. The shaft i is journalled in two links k having fixed pivots at their lower ends and carries an arm having a loading- weight t. When the low-speed shaft is normally provided with a suitable thrust and journal bearing, a load is applied by the weight t to the high-speed shaft only, the shaft i being journalled in fixed pivots. The load is applied to the high-speed shaft by means of a collar which contacts one end of the gear sleeve, the other end being connected to the shaft c by means of an extension coupling. The gears, when loaded, are driven by external means and the deterioration of the tooth surfaces is observed after a given lapse of time. Several pairs of helical gears may be loaded simultaneously, the members of each pair being mounted on the shafts band c respectively, and the loading-weight t may be replaced by hydraulic loading means.
Patent GB-707368-A (GB)
Title: Improvements in heavy calibre training ammunition
IPC: F42B8/10
Filed: 1952-12-23
Abstract: 707,368. Practice projectiles. FRANSSON. F. W. Dec. 23, 1952, No. 32626/52. Classes 9(1) and 92(2) An 'artillery practice projectile comprises a hollow cylinder 1 screwed to a nose-piece 2 and extending into a hollow base 4 where it is held by bayonet jointing consisting of pins 6 extending into slots 7, 8. Attached to the base 4 is a breech block - 12 integral with which is a cartridge extractor 10. Slidably mounted in the breech block is a spring- held firing-pin 14 which holds a ball 15 in engagement with a groove 19 in a firing rod 16 slidably mounted in a transverse bore 17 in the base 4. As the training round is inserted in the gun, the firing mechanism of the gun pushes the rod 16 inwardly against the action of a spring 18, the ball 15 is then forced against the firing-pin and drives it into engagement with the primer of a cartridge 11. Slidably mounted in a transverse bore 20 is a locking bolt 22 held by a spring 21. A part 23 of this locking bolt projects into the bore 17 and engages the groove 19 to lock the firing rod 16. The bevelled head 22a of the locking bolt, which abuts the edge 24 of a disc 26 secured to the base of the round, projects beyond the socket 4 so that as the round is thrust home in the gun the locking bolt is pushed inwardly and releases the firing pin. Slidable on the breech block 12 is a ring 28 pressed by four springs into contact with a sleeve 32 secured to the cylinder 1. The cylinder 1 has an internal flange 34 having a hemispherical rear face 35 in which is seated a ring 36 secured on the cartridge chamber 37 of a gun barrel 38. This barrel extends into the nose-piece 2, the muzzle being aligned with an opening 40. The nose-piece provides a chamber 41 around the barrel which communicates through an opening 42 with the cylinder 1. Between the muzzle of the barrel 38 and the forward opening 40 a free space is left, which communicates with the chamber 41. A ring 44 fastened to the barrel forms an abutment for a spring 46 which presses a washer 45 against a flange 47 of the cylinder 1 and hence holds the ring 36 on its seating while the barrel is being secured by four screws 48 extending through radial openings 49 in the cylinder 1. The nose-piece 2 has an annular groove 50 in which is rotatably mounted a ring 51 carrying four plate springs 53. The ends of each spring fit into notches in four arched segments 54 provided with lateral flanges 56 which engage flanges 57, 57a on the cylinder 1 and nose-piece 2 respectively. When the training round is inserted in a gun the segments 54 are pressed into the groove 50 against the action of the springs 53 to centre the round in the gun bore. Specification 707,367 is referred to.
Patent GB-826307-A (GB)
Title: Coated ascorbic acid
IPC: A61K31/375
Filed: 1957-10-18
Abstract: Ascorbic acid or a mixture containing ascorbic acid is protected by a coating of a fatty alcohol containing 12-18 carbon atoms which coating may suitably amount to 1-5% by weight of the ascorbic acid. The compound may take the form of an ascorbic acid centre surrounded by a protective layer of a primary open chain alcohol such as cetyl or stearyl alcohol.  The coating may be achieved by dissolving the fatty alcohol in an anhydrous inert organic solvent in which the ascorbic acid is practically insoluble, such as chloroform, ethanol, desirably methanol, preferably methylene chloride, and causing the resulting solution to adhere to the exterior of solid ascorbic acid or the mixture containing it and thereafter evaporating the solvent or by coating with molten cetyl or stearyl alcohol.
Patent GB-336119-A (GB)
Title: Improvements relating to devices for holding reels of counter paper and the like
IPC: B65H35/00
Filed: 1929-10-28
Abstract: 336,119. Davidson & Sons, Ltd., C., and Davidson, T. Oct. 28, 1929. Reel holders. - A holder for reels of counter paper and the like comprises two spaced rollers 3 for supporting a reel 5 which are journaled into the end members of a frame 1, the paper being led between the rollers and below one of them; a knife 6; and a rocking member or bar 7 which causes a strip of paper to protrude after each severing operation. The knife may be fixed or mounted as shown, on the rocking bar, which latter may be returned to its normal position by gravity or a spring. Guards 11 prevent accidental displacement of the reel, and a recess 12 permits access to the free end of the reel. The frame can be mounted on the upper or under surface of a counter or against a wall.
Patent GB-924851-A (GB)
Title: Film strip projection apparatus
IPC: G03B41/08
Filed: 1959-09-25
Abstract: 924,851. Continuous-feed kinematography. W. STEENBECK, [trading as W. STEENBECK & CO.]. Sept. 25, 1959 [Sept. 25, 1958; Jan. 28, 1959], No. 32670/59. Class 97 (1). In a continuous-feed projector employing a synchronously rotating polygonal prism for optical compensation, the light is interrupted twice per traverse of a prism face through the projection axis (see Figs. 3 and 4), and the prism width is selected, for a prism of given refractive index and a given number of faces, to give a minimum change in the image position during the period of illumination. The family of curves relates to different prism widths (between opposite parallel faces). It is seen that the total image movement, indicated on the ordinate scale as a percentage of frame height, from a position below to the axis to one above the axis, is a minimum during the periods of illumination, for a prism of width 39.7 mm. The interruption of projection may be produced either by modulating the intensity of the light source, or by a beam-chopping shutter.
Patent GB-1152230-A (GB)
Title: Improvements relating to Electric Motors
IPC: F25B31/02
Filed: 1967-07-17
Abstract: 1,152,230. Assembling electric motors. TECUMSEH PRODUCTS CO. 17 July, 1967 [28 July, 1966], No. 32703/67. Heading B3A. In a method of assembling an electric motor with a motor driven unit wherein the motor and unit are drivingly interengaged by a shaft 12 and wherein the unit has a casing 14 and the motor has a rotor and a stator core, an inner peripheral wall of the core defining a bore 38, the core is arranged relative to the casing so that the bore axis is generally parallel to the rotational axis of the shaft 12, a wall surface is provided in the bore and is moved radially outwardly into engagement with the core wall while maintaining the moving wall surface accurately concentric with the shaft rotational axis to bring the bore axis into coincidence with the rotational axis. The motor stator 24 is supported on lugs 20 of the casing 14 and is loosely secured thereto by bolts 28. The wall surface comprises an expandible collet 46 having a tapered bore 50 and longitudinal slots 64, 66 to allow for radial expansion. The collet is inserted in the bore 38 and is axially located by a circumferential shoulder 56. An arbor 48 is inserted in the collet, a pilot bore 70 accommodating the shaft 12, and is moved downwardly sufficiently to expand the collet against the core 30, whereupon the bolts 28 are tightened to secure the stator concentrically with the shaft axis. The arbor is then extracted to release the collet, which is removed and the rotor is then inserted in the stator to complete assembly of the motor. For automated production, the collet 46 and arbor 48 can be moved sequentially by a double-acting ram. The bolts 28 may be tightened in opposed pairs or simultaneously to eliminate side thrust from unequal load on individual bolts.
Patent GB-507291-A (GB)
Title: A method of and apparatus for obtaining an uniform delivery of tobacco at the discharge end of a reciprocating conveyer device
IPC: A24C1/02
Filed: 1938-11-11
Abstract: 507,291. Conveyers; cigar -making machines. MULLER, J. C. Nov. 11, 1938, No. 32838. Convention date, Dec. 6, 1937. [Class 78 (i)] [Also in Group VI] A uniform delivery of tobacco at the discharge end of a jigging conveyer 9, necessary particularly for cigar-making, is obtained by feeding the tobacco uninterruptedly to the feed end of the conveyer in a quantity slightly in excess of the delivery capacity of the conveyer. The excess accumulates at the feed end until it slides over a bevelled wall 14 into a container 15 from which it is returned to the conveyer 1 which feeds the jigging conveyer. The endless belt conveyer I is driven through ratchet gearing in timed relation to the movement of the jigging conveyer. Rotary rakes 10, 12 regulate the passage of the tobacco.
Patent GB-1006716-A (GB)
Title: Improvements in and relating to electrical apparatus
IPC: H05K3/30
Filed: 1962-08-29
Abstract: 1,006,716. Circuit assemblies. OLYMPIA WERKE A.G. Aug. 29, 1962 [Sept. 8, 1961], No. 33092/62. Heading H1R. A switch unit for an electric computer &c. comprises a switch and the components of an interference suppressor device, mounted on an insulating plate and interconnected by conductors on the remote side of the said plate, which is covered by a second insulating plate. As shown, a double-pole switch comprising contacts 4, 5, two chokes 2, and a suppressor assembly 3, are mounted on an insulating carrier plate 1, and interconnected by printed wiring 7. A second insulating plate 13 is placed over wiring 7, and a control member 10, attached to the computer to actuate the switch, protrudes through apertures 9, 12 in plates 1, 13 respectively.
Patent GB-1279454-A (GB)
Title: Circular knitting machines
IPC: D04B15/68
Filed: 1969-07-02
Abstract: 1279454 Knitting-machines C TERROT SOHNE 2 July 1969 [6 July 1968] 33370/69 Heading D1C A circular machine is provided with a series of selector jacks 3 whose bifurcated ends receive one end of a jack 5 pivoted on the needles. The selector jacks are reset by grippers 12 which act on butts 4. Butts on some of the series project downwardly, some upwardly (4a, 4b respectively). Two grippers are correspondingly arranged.
Patent GB-1016621-A (GB)
Title: Improvements in or relating to drawer and cupboard frames
Inventor: MARSDEN KEITH
IPC: A47B88/12
Filed: 1963-08-23
Abstract: 1,016,621. Sectional cabinets. ALAN COOPER Ltd. Feb. 26, 1964 [Aug. 26, 1963], No. 33432/63. Heading A4B. Drawer and cupboard frames are detachably suspended from an article of furniture, e.g. a table 11, or from a similar drawer or cupboard frame by means of slotted plates 22, 28 forming hooks to engage screws 27, 29, respectively. Plates 28 are shown to be pivotally mounted on a bar 26 of the table 11 and on the bottom edge of the rear wall of the frames, and plates 22 are rigidly secured to the upper edges of the side walls 18 of the frames. Guide rails 21 are secured to the inner faces of the side walls 18 of the drawer frames to engage in grooves in the side walls of the drawers (not shown).
Patent GB-618910-A (GB)
Title: Improvements in or relating to preparations of or containing protein hydrolysates
IPC: A61K47/36
Filed: 1946-11-11
Abstract: Solutions of enzymatic protein hydrolysates containing 3-20 g of hydrolysate comprising amino-acids per 100 c.c. of water are stabilized by incorporating, for each 100 c.c. of water, .02-1 g. of a protective colloid forming a clear solution in water and compatible with human blood.  Suitable enzymatic hydrolysates which are sufficiently pure for parenteral use include enzymatic digestates of casein, lactalbumin or beef serum protein.  High grade gelatines, pectins, and peptones are colloids specified. They are added to the aqueous solvent prior to, with or after the hydrolysate, and before or after bottling.  A solution of the hydrolysate may be formed, cooled, filtered to remove any precipitate, the colloid added, and the solution sterilized in sealed bottles.  Repeated sterilization may be effected after storage to redissolve any precipitate. Examples illustrate the effect of varying additions of gelatine, pectin or peptone to solutions of casein or lactalbumin hydrolysates.ALSO:Solutions of enzymatic protein hydrolysates containing 3-20g of hydrolysate comprising amino-acids per 100 c.c. of water are stabilized by incorporating, for each 100 c.c. of water, .02-1g. of a protective colloid forming a clear solution in water and compatible with human blood.  Suitable enzymatic hydrolysates which are sufficiently pure for parenteral use include enzymatic digestates of casein, lactalbumin or beef serum protein.  High grade gelatines, pectins, and peptones are colloids specified. They are added to the aqueous solvent prior to, with or after the hydrolysate, and before or after bottling.  A solution of the hydrolysate may be formed, cooled, filtered to remove any precipitate, the colloid added, and the solution sterilized in sealed bottles.  Repeated sterilization may be effected after storage to re-dissolve any precipitate. Examples illustrate the effect of varying additions of gelatine, pectin or peptone to solutions of casein or lactalbumin hydrolysates.
Patent GB-188566-A (GB)
Title: Improved bedstead and like joint
IPC: F16B12/58
Filed: 1921-12-14
Abstract: 188,566. Loukes, E. V. Dec. 14, 1921. Joints and connections.-For detachably joining mattress rails 11 to bed posts 6, a U-shaped yoke having a pair of legs 2 adapted to be pivoted at 7 to opposite sides of the bed post &c. is arranged so that the bridge portion 3 passes below the rail 11 &c. and is engaged by a flat metal plate 10 or a recess 14 or the end of a wooden cleat 16.
Patent GB-409812-A (GB)
Title: Improvements in and relating to refining engines for paper pulp
IPC: B02C2/10
Filed: 1932-11-28
Abstract: 409,812. Paper-pulp refining-engines. MILNE, S., 38 Lauder Road, Edinburgh. Nov. 28, 1932, No. 33592. Addition to 390,298. [Class 96.] The invention described in the parent Specification is extended to paper-pulp refining- engines of the conical, disc or other type, such, e.g. as that shown in Specification 404,954, and provides at least one of the pulp-treating surfaces of such engines with an entire covering of basalt lava &c., such surface having working bars or faces f and lifting pockets h equally spaced therein. As applied to a conical rotor, the segments of basalt lava &c. united by cement are tapered from end to end and from top to bottom and are retained on the rotor by cement in undercut grooves engaging projections thereon. The lifting pockets may extend from end to end of the rotor or alternate ones be shorter. As applied to a disc refiner the basalt rings e<1>, f<1> are formed with dovetail portions which engage in annular grooves in the rotor e or sides f and are retained therein by cement g.
Patent GB-1381153-A (GB)
Title: Radiofrequency power testing method and apparatus
IPC: G01R21/01
Filed: 1972-07-18
Abstract: 1381153 Measuring r.f. power ROCKWELL INTERNATIONAL CORP 18 July 1972 [1 Nov 1971] 33622/72 HeadingGlU [Also in Division G4] Apparatus and method for measuring the power output of an r.f. device U.U.T. comprises a constant power source of swept frequency r.f. 10 the output of which is pulse modulated at 14 and applied to U.U.T., the output of which is passed via a thermistor 112 and a power meter 113 as Y- input to a curve plotter 20, the X- input of which is derived from the source 10 on line 27, the output from U.U.T. also being passed to an r.f. mixer 17, 18 to provide a combined spectrum of the input and output of U.U.T. which is processed and displayed at 19. The power output of the oscillator 10 is kept constant by means of a feedback loop comprising a thermistor 12 and meter 13 and the frequency is maintained to the desired output by means of a feedback circuit 70. The curve plotted at 20 will represent the measured power output of U.U.T. per pulse repetition interval averaged over that interval by the response characteristics of thermistor 112 as a function of frequency and digital means are described for calculating the time average power output as a function of frequency using the relation true average power = Observed Power X(p.r.i./p.w.) where p.r.i. is the pulse repetition interval and p.w. is the pulse width, which means comprise an A/D converter connected to receive the output from meter 113 and pulse shaping circuits connected to the line 23 whereby the edges of pulses of r.f. energy output are used to enable a first counter to count clock pulses between two adjacent pulse edges (p.w.) and a second counter to count clock pulses between two adjacent edges of the same polarity (p.r.i.), which information is applied to a digital calculator to perform the calculation according to the above relation.
Patent GB-979218-A (GB)
Title: Improvements in door furniture
Inventor: SHAW ALBERT
IPC: E05B3/06
Filed: 1962-09-01
Abstract: 979,218. Door handles. STREBOR DIECASTING CO. Ltd. Aug. 6, 1963 [Sept. 1, 1962], No. 33636/62. Heading E2A. Door furniture of the type comprising a door handle B rotatably mounted in a door plate a and formed with a bore b in one end to receive a latch-operating bar A and a concentric annular second bore b<SP>2</SP> containing a torsion spring D connected at one end to the handle and at the other end to the plate, withdrawal of the handle from the plate being prevented by a circlip d<SP>1</SP>, is characterized in that the handle is of integral one piece construction and the annular second bore is defined at its radially outer side by a flange b<SP>5</SP> bearing on the door plate. A washer d<SP>2</SP> of nylon or the like is housed in a recess in the door plate for engagement by the flange, and the ends of the spring engage in apertures a<SP>3</SP>, b<SP>3</SP> in the plate and handle respectively.
Patent GB-851643-A (GB)
Title: Improvements relating to electric suction cleaners
IPC: A47L5/22
Filed: 1958-10-21
Abstract: 851,643. Centrifugal fans. TORNADO A.G. Oct. 21, 1958 [July 15, 1958], No. 33642/58. Class 110 (1). [Also in Group XXVIII] Prevention of passage of relatively large airborne particles, e.g. “-inch pebbles 15, 16, through the fan chamber of a suction cleaner, wherein the fan comprises spaced blades 10 projecting from a conical plate 7, is effected by so arranging the spacing b, Fig. 2 (not shown), of the blades 10 adjacent a rim 14 of the inner end of the suction duct 2 together with the diameter of the plate hub and the profiling of that part of each blade near the rim 14 as to provide particle obturating means. The duct 2 is inclined to the fan axis 11 and one side of the rim is beaded at 12 whereas the opposite side is chamfered at 13.