baber/WOPTO huggingface dataset:
Patent GB-192421-A (GB)
Title: Improvements in or relating to keyed musical wind instruments
IPC: G10D9/04
Filed: 1921-07-26
Abstract: 192,421. Withers, J. S., (Soc. Evette et Schaeffer). July 26, 1921. Wood and like wind instruments.-In clarinets, saxophones, oboes, &c. having key-mechanisms somewhat similar to the Boehur system, the tampion of C sharp one semitone below the hole of the left hand ring finger is automatically raised when the left hand middle finger is lifted off the ring or plate for E flat. When the E flat hole is closed, the tampion C sharp closes but may be opened by its key. The trills C E flat and D fiat E flat may thus be obtained by oscillating the middle finger of the left hand only, at the same time holding open the keys of C or C sharp (D flat). Depressions of the rings of the right hand fingers may also close the C sharp tampion. In Figs. 1 and 2, depression of the E flat ring 5 mounted on the shaft 3 depresses an eccentric 7 thereon, allowing a lug 6<1> on the hinge 6 of the normally open C sharp tampion 1 to rise, the tampion closing under the action of a spring under its key 2. In Fig. 3, depression of the E flat ring 5 on the shaft 3 raises a crank-piece 15 rigid therewith, permitting the tail of the C sharp tampion lever 13, rigid on the hinge 14, to rise, the tampion being closed by pressure of an arm 12 rigid with the spring-pressed key 10. In this condition the tampion 1 may be allowed to open under the influence of a spring under its lever 13, by depressing the key 10. Depression of the right hand rings closes the tampion 1 by the action of the underlying crank-arm 16<1>, Fig. 9. In another modification, the arm 12 pressing on the tampion 1 is replaced by a separate spring- pressed arm which may be lifted off the tampion by the key-lever 10.
Patent GB-806640-A (GB)
Title: Improvements in thermoelectric elements
IPC: C22C11/00
Filed: 1955-07-12
Abstract: A thermo-electric element consists of a lead-selerium-sulphur alloy, the proportion (by weight) of lead lying within a range, the limits of which vary linearly with the proportion of selenium to sulphur, being from between 72.45 per cent and 75 per cent when the balance is selenium and there is only a trace of sulphur, to between 86.63 per cent and 87.2 per cent when there is only a trace of selenium. Metallic impurities do not exceed 0.01 per cent.  These ratios always result in an excess of lead over that required for stoichiometric composition.  The alloy may be prepared by heating a mixture of lead, selenium and sulphur in a reducing or inert atmosphere, or in a sealed container, to between 1085 DEG C. and 1115 DEG C., cooling, and annealing by heating to between 540 DEG C. and 815 DEG C. for 10-20 hours.  The element has low thermal conductivity and N-type electrical conductivity.
Patent GB-244676-A (GB)
Title: Improvements in and relating to nut locks
IPC: F16B39/36
Filed: 1925-08-10
Abstract: 244,676. Stephens, A. J., (Vass, T. D.). Aug. 10, 1925. Locking nuts.-A nut 3 with an enlarged bore 5, is locked to a bolt 2 by means of an annular washer 6 with a non-threaded conical extension which is compressed on to the bolt when the nut is screwed down. The washer as a whole forms an unbroken annulus, but the conical extension may be corrugated or partially split to facilitate compression. The nut may be provided with radial ratchet teeth on its bearing face, and the disc portion 6 of the washer radially split and the split portions bent to act as pawls which resiliently engage the ratchet teeth on the nut.
Patent GB-531898-A (GB)
Title: Improvements in and relating to tubular hose pipes
IPC: F16L11/02
Filed: 1939-07-11
Abstract: 531,898. Artificial filaments; hosepipes made of regenerated cellulose yarns. COURTAULDS, Ltd., and VOSS, T. H. July 11, 1939, No. 20171. [Class 2 (ii)] The warp or warp and weft of a fabric hosepipe comprises regenerated cellulose yarn, made by extruding viscose into a coagulating bath, and passing the resulting yarn, while it is still only partially coagulated, into a hot aqueous bath where it is stretched to such an extent that the micelles are caused to lie substantially in the direction of the length of the yarn. The warp yarns are those which run the length of the pipe. The yarns which encircle the hose, i.e. the weft yarns may, if desired, be of flax or other material. The high tenacity regenerated cellulose yarn may be obtained by extruding viscose into a coagulating bath containing dilute sulphuric acid; sodium sulphate, and zinc sulphate, and passing the yarn immediately after leaving this bath and while still incompletely regenerated, in succession around two rollers partially immersed in a bath of water at 98‹C. the second roller being rotated at a higher peripheral speed than the first so as to stretch the yarn.
Patent GB-664828-A (GB)
Title: Improvements in or relating to photographic roll film cameras
IPC: G03B17/42
Filed: 1948-07-29
Abstract: 664,828. Photographic roll-film cameras. DURST SOC. P. A. FABBRICA MACCHINE ED APPARECCHI FOTOTECNICI. July 29, 1948 [March 1, 1947], No. 20230/48. Class 98 (i). The camera comprises a light-tight chamber 10, a lens M, a shutter 2, a pivoted sector-shaped member 4 which is rigidly connected to a manually operable lever 1 and which is provided at the rear end with claw means for forwarding the film and at the front end with an apertured cylindrical wall 41 movable adjacent the front wall of the chamber 10 to cap an aperture 12 therein while the shutter uncovers it on being set by the sector-shaped member engaging a pin 2<SP>1</SP> on the shutter and to uncover said aperture when the lever 1 returns to rest, said lever 1 being provided with a toothed wheel forming part of a counter mechanism which follows the lever in one direction without rotating whilst during the opposite movement it shifts the wheel one tooth at a time. As shown, the shutter is set and the film fed simultaneously by anticlockwise movement of the lever 1 and the counter mechanism comprises the toothed wheel 5 carried on the lever and rotated by the pawl 21 on the return movement, when the spring-pressed claw 9 trails over the film perforations. The shutter is held set with its spring 18 tensioned by a finger 3 on a clockwiseurged bell-crank lever 3 engaging a tooth 211 on the apertured shutter blade. On depressing the release button 8, the lever 3 pivots to release the shutter blade so that its aperture 19 passes over the aperture 12. For bulb exposures, a slide 7 is depressed allowing a tooth 6<SP>1</SP> on a clockwise-urged arm 6 to move into the path of the lug 2<SP>11</SP>. On now depressing the button 8, the shutter is freed from the tooth 3<SP>11</SP> but is arrested in open position by the tooth 6<SP>1</SP> until, on releasing the button 8, the bell-crank lever 3 pivots clockwise to move the arm 6 anticlockwise to release the tooth 2<SP>11</SP> and allow the shutter to close.
Patent GB-699985-A (GB)
Title: Improvements in resilient shaft hangers
IPC: B60K17/24
Filed: 1951-08-28
Abstract: 699,985. Resilient mountings. GUY, F. M. Aug. 28, 1951 [Sept. 14, 1950], No. 20288/51. Class 108 (iii). [Also in Group XXXIV] A hanger assembly for resiliently mounting a shaft such as a propeller shaft for a motor vehicle, comprises a shaft-bearing housing 14 provided with rubber bushes 52 for the ends of hanger 20, and clamping straps 26, 28, forming loops to contain pre-loaded rubber bushes 30 which may be bonded to the clamps as well as to the hanger.
Patent GB-427306-A (GB)
Title: Improvements in and relating to means for measuring the instantaneous value of an alternating current quantity
IPC: G01R1/30
Filed: 1933-07-19
Abstract: 427,306. Electromagnetic relays. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) July 19, 1933, No. 20400. Convention date, July 19, 1932. [Class 38 (v)] [See also Group XXXVI] The Specification as open to inspection under Sect. 91 contains the following. The instrument 11 may be an excess voltage relay which operates when the voltage of the winding 2 exceeds the continuous-current component derived from the battery 10, these voltages together with a blocking voltage obtained through transformer winding 6, being applied to the grid of a gasfilled discharge tube. A capacity potential divider may replace the voltage transformer 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-776851-A (GB)
Title: Automatic transfer mechanism for forging machines and the like
IPC: B21K27/04
Filed: 1955-07-14
Abstract: 776,851. Forging. AJAX MANUFACTURING CO. July 14, 1955 [June 6, 1955], No. 20459/55. Class 83 (4). An automatic transfer mechanism for a forging machine or the like, particularly a bolt heading machine, comprises a reciprocable slide 20 having one or more sets of workpiece engaging rollers 35 adapted to engage workpieces B and hold them against the flat surface of a follower plate 8, said slide being reciprocated parallel to said surface to roll the workpieces across the surface. The transfer mechanism which is disposed adjacent the shank gripping dies 2, 3, Fig. 7, of a bolt heading machine, receives successive cylindrical workpieces B cut from round stock, from a vertical feed shoot 54, and rolls them vertically down the plate 8 to a first heading position where a preliminary head 64, Fig. 4, is formed and then to a second position where the final head 67 is provided. The mechanism then rolls the headed workpieces below the plate 8 where they fall into a discharge pit. The plate 8 is biased to the left, Figs. 3, 7, by a pair of pneumatic pistons 10 or alternatively by compression springs. The slide 20 is reciprocated vertically by a double-acting pneumatic motor 16 controlled by a valve 41, Fig. 2a (not shown), actuated by the transverse slide carrying the moving grip die 3. Six spring- loaded plungers 31 are slidably mounted in bores 30 in the slide 20, each plunger having a rectangular head 32 carrying four rollers 35 which protrude from the surface of the head to engage the workpiece. A workpiece 60, Fig. 7, leaving the shoot 54 rests on a gate 59 carried by the die 3 and is held by the follower plate. When the die is retracted, Fig. 8 (not shown), the workpiece is engaged by the upper set of rollers 35 and held by the follower plate; thereafter the slide 20 moves downwardly to roll the workpiece to a position opposite the upper set of gripping recesses 62, 63 in the dies 2, 3, Fig. 9 (not shown). Inward movement of the die 3 removes the workpiece from the slide rollers and moves it into contact with the stationary die 2, Fig. 10 (not shown). The slide is then moved upwardly to the position of Fig. 7. Additional support for long workpieces is provided by shelves 38 in a member 36 secured to the moving die slide, and a stud 53 on the face of the slide 20 co-operates with a stationary support bar 50, Fig. 2 (not shown), to provide additional support for a workpiece engaged by the upper set of rollers 35. The header slide 5, Fig. 1 (not shown), is driven by an electric motor 6. An air clutch and brake are also provided.
Patent GB-983843-A (GB)
Title: Improvements in retractable writing instruments
Inventor: PLATT LEWIS FRANK
IPC: B43K24/08
Filed: 1961-06-07
Abstract: 983,843. Writing instruments. SCRIPTO Inc. June 7, 1961, No. 20539/61. Heading B6P. In a ball-point pen in which the writing unit can be longitudinally projected to writing position against spring pressure by pressing a side button inwards, the button is held in its ball-projected position by a stationary latch. The rear end of the writing unit 103 is slidable in the tubular front end of a guide member 106 fixed in the barrel and is engaged by a cam 117 pivoted to the guide member at 120. An actuating member 110 is laterally slidable in a longitudinal recess 113 in the member 106 and is biased outwards by a spring 116. A pocket clip 112 is mounted on the actuating member and when the writing unit is in retracted position projects through a slot 111 in the barrel. The front end 122 of the actuating member engages the cam 117 and, when the parts are in the Fig. 2 position, holds it so that the writing unit is maintained in projected position against the rearward bias of a return spring 104. Lugs 109 on the actuating member slide in transverse slots 114 in the guide member and when the actuating member is pressed inwards to the Fig. 2 position the lugs 109 latch behind shoulders 107 in the slots so as to hold the actuating member in that position against the bias of the spring 116. In order to unlatch the lugs the operator presses the clip 112 and member 110 further inwards so that the lugs engage curved cam faces 108 in the slots 114. Engagement between the lugs and the cam faces causes slight forward movement of the member 110 within the barrel so that when inward pressure on the clip is relaxed the member 110 and the clip are free to move outwards under the influence of the spring 116 to a position where the lugs 109 are beyond the shoulders 107, the clip 112 is outside the barrel and the member 110 abuts against the inner wall of the barrel. In this position the actuating member end 122 allows the cam 117 to pivot in a clockwise direction so that the writing unit is retracted by the spring 104. The writing unit is projected by pressing the clip 112 inwards until the lugs 109 engage behind the shoulders 107. In modifications the spring 116 is omitted and the member 110 carries a transverse pin and the member 106 is formed with inclined slots, or vice versa whereby the members are pivoted to each other near their rear ends.
Patent GB-343863-A (GB)
Title: A thread guide for braiding bobbins
IPC: D04C3/14
Filed: 1930-07-07
Abstract: 343,863. Braiding - machines. ZEHNDER, A., Birmenstorf, Aargau, Switzerland. July 7, 1930, No. 20547. Convention dale, July 11, 1929. [Class 74 (i).] The thread guide for a bobbin of a braiding - machine, wherein the thread tensioning device is located within the hollow spindle of the bobbin, comprise a fork with limbs c<1>, c<2> set at an upwardly diverging angle. The guide is preferably formed of wire, and is mounted upon the spindle b by coiling.
Patent GB-711886-A (GB)
Title: Therapeutic preparations containing ion-exchange resins
Inventor: THURMON FRANCIS MOZART
IPC: A61K47/48
Filed: 1952-08-15
Abstract: A therapeutic preparation for external use to maintain body surfaces at approximately their normal degree of acidity comprises a finely divided carboxylic cation exchange resin dispersed in a hydrophilic base which is an ointment, cream or paste, said resin giving a pH in aqueous 0.15 N salt solution between 3 and 5.5.  The preparation contains 5 to 35, preferably 10 to 25, and optionally 15-25, per cent of the resin.  The resin may be prepared by copolymerizing maleic anhydride and styrene in the presence of a polyunsaturated compound such as divinylbenzene, trivinylbenzene, ethylene diacrylate or diallyl maleate, fumarate or itaconate, or by copolymerizing acrylic or methacrylic acid with such a polyunsaturated compound.  Some of the carboxy groups in the resin may be combined with a basic drug or form a salt with a therapeutic inorganic cation, e.g. copper and zinc.  Cation exchange resins with mixed sulphonic and carboxylic groups may be used, especially when sulphonic group is in salt form with e.g. sodium, calcium, magnesium, copper, zinc or amine. Ointment bases may be made with stearic acid, waxes, spermaceti, cetyl alcohol, lanolin or oils dispersed in an aqueous medium with e.g. ethanolamine soaps, sodium dodecyl sulphate, glyceryl monolaurate, glycol monolaurate or glyceryl monostearate.  Glycerol, ethoxy ethanol, propylene glycol, sorbitol, perfume and preservatives may also be present.  Other bases are (a) aqueous solutions of thickening agents such as tragacanth, karaya gum, quince seed gum, Irish moss, pectin, alginates, cellulose ethers and polyethylene glycols, as such, with further additions as above, (b) starch-glycerol or methyl cellulose-glycerol pastes and (c) aqueous dispersions of bentonite.  Specified therapeutic substances are: salicylic acid, benzoic acid, tannic acid, sulphur, phenol, resorcinol, camphor, menthol, eucalyptol, methylsalicylate; sulphonamides, e.g. sulphathiazole; local anaesthetics, e.g. benzocaine, butacaine or procaine; antibiotics such as streptomycin, pencillin, tyrothricin, aureomycin or subtilin; antihistamines, e.g. N-a -pyridyl-N-benzyl-N1, N1 dimethylethylene diamine; vaso-constrictors, e.g. privine (naphthmethylimidoazoline) hydrochloride and adrenaline; vaso dilators, e.g. belladonna; zinc oxide, calomel, calamine, white precipitate, and aluminium salts; oil of cade, undecylenic acid. Specification 709,091 is referred to.
Patent GB-1377456-A (GB)
Title: Control device for vehicle doors and other members
IPC: E05F15/14
Filed: 1973-05-01
Abstract: 1377456 Vehicle doors SOC ANON AUTOMOBILES CITROEN 1 May 1973 [2 May 1972] 20620/73 Heading B7J [Also in Divisions E2 and H2] In a device for controlling the operation of a movable member 2, e.g. a slidable automobile door (Divisions E1-E2), an electric motor 6 is controlled by a control switch 7 incorporated in the supply circuit and accessible from the interior space X of the vehicle and an external control switch 8, accessible from the exterior of the vehicle, is incorporated in the supply circuit. The electric motor 6 controls a non-reversible transmission coupling the motor 6 to an actuating mechanism for operating the movable member 2 when a worm 19 and a worm-wheel 18 are engaged (Fig. 2) by pivotally mounting the casing 14 carrying the electric motor 6 and the worm 19 about a pivot 15 such that a control member 29, accessible from the interior of the vehicle and from the bonnet space, controls the engagement and disengagement of the drive means. As shown in Fig. 1, the sliding door 2 is rigid with a toothed rack 3 which meshes with a pinion 4, the shaft 5 of which is connected to the shaft of the motor 6 by the non-reversible transmission. A handle 11, disposed below a lockable bonnet lid 12, is located on the forward end of the control member 29. In the event of failure of the electric motor 6 or the supply circuit thereto the door can be displaced manually after disabling the non-reversible transmission by displacement of a slide 9 coupled to the control member 29 either from the interior or from the exterior after opening the bonnet lid 12. A modification is disclosed (Fig. 5, not shown) wherein the worm-wheel shaft 5 is urged upwardly into notches 33 formed in the slide 9 by spring means.
Patent GB-319096-A (GB)
Title: Improvements in or relating to optical slits, for use for example, in recording and reproducing sounds
IPC: G11B7/00
Filed: 1928-07-16
Abstract: 319,096. Gramophone Co., Ltd., and' Manifold, M. Bowman-. July 16, 1928. Drawings to Specification. Optical apparatus.-In connection with the reproduction of sound or other relatively lowfrequency oscillations from a record of said oscillations with the aid of light, a slit is used having a different width from that used in making the record. One of the slits may have twothirds the width of the other. It is stated that in a record there is a series of " absent frequencies " corresponding to the frequencies at which the response characteristic in making the record fell to zero, one such frequency termed the " lowest absent frequency " occurring when the " ripple wave length " of the record is equal to the width of the slit and another occurring when such wave length is equal to one-half the slit width. Between each of these zero responses. the characteristic rises to a maximum, that between the frequencies referred to above being- termed a " secondary maximum. " similar effects are found in reproducing from a record. According to the invention, the frequency at which the " secondary maximum " of the response characteristic of the reproducing slitoccurs is made substantially the same as the " lowest absent frequency " of the record. Alternatively, the " lowest absent frequency " of the reproducing slit may occur at the same frequency as the frequency of the " secondary maximum " of the record. Instead of using an actual slit, the image of a slit placed some distance from the film may be projected on the film.
Patent GB-1447931-A (GB)
Title: Coupling device or fuse
IPC: G21C9/02
Filed: 1974-05-10
Abstract: 1447931 Controlling reactors ELECTRICITE DE FRANCE (SERVICE NATIONAL) 10 May 1974 [22 May 1973] 20791/74 Heading G6C When the temperature in a liquid-sodiumcooled reactor core 12, Fig. 1, is excessive a fuse 22 melts to detach a wire 24 from a tubular casing 18 and thereby release boron carbide assembly 30; a fuse 26 detaches a spacer tube 28 from wire 24 when the neutron flux in the core 12 exceeds a predetermined threshold and the boron carbide assembly falls to the bottom of casing 18 to introduce negative reactivity. Fuse 22, Fig. 2, comprises a calcium cylinder 36 and an aluminium ingot 42, the melting point of the cylinder being 850 C., compared with the normal reactor operating temperature of 560 C. Fuse 26, Fig. 3, includes a calcium cylinder 46 anchored at the lower end of wire 24 and a finned aluminium cylinder 50 pierced by a bore 51; a flange 58 prevents contact between members 46, 50. A sleeve 54 is formed of particles which generate heat in a neutron flux. During normal operation the heat generated by the particles is removed by fins 52 but a high neutron flux causes sleeve 54 to melt and the aluminium reacts with the calcium to release the neutron-absorbing boron carbide assembly 30. Other pairs mentioned are calcium/barium, calcium/magnesium, lanthanum/zinc and cerium/zinc.
Patent GB-1036415-A (GB)
Title: 19-methylene-androstane derivatives and process for their production
IPC: C07J1/00
Filed: 1963-05-24
Abstract: Novel steroids of the formulae <FORM:1036415/C2/1> <FORM:1036415/C2/2> <FORM:1036415/C2/3> (wherein R is hydrogen or hydrocarbon carboxyli actyl of less than 12 carbon atoms which may be substituted; R1 is hydrogen or C1- 8 alkyl; R2 has the same meanings as R; and R3 is hydrogen, C1- 8 alkyl, C2- 8 alkynyl) are prepared by treated D 5-androstene-3b , 19-diol-17-one 3-acetate with ethylene glycol in presence of p-toluenesulphonic acid, oxidizing the produced 17-ketal in a neutral or basic medium, saponifying the formed 17-cycloethy-lenedioxy - D 5 - androsten - 3b  - ol - 19 - al acetate in a basic medium, treating the obtained tained free 3b -ol with a triphenyl phosphonium alkyl bromide in presence of an alkyl lithium in an inert solvent, hydrolysing the ketal group of the formed 17 - cycloethylenedioxy - 19 - methylene - D 5 - androsten - 3b  - ol derivative in an acid medium, treating the obtained 17-one with an alkyl, alkenyl or alkynyl magnesium halide to give the corresponding 17a -hydrocarbyl-17b ol or with sodium borohydride to give the 17a H-17b -ol, treating the D 5-3b -ols by the Oppenauer method to give the corresponding D 4-androsten-3-one and optionally esterifying any hydroxyl groups.  Examples are given.
Patent GB-1028461-A (GB)
Title: Cellulosic films for use as semi-permeable membranes in permeation processes
IPC: C08L1/02
Filed: 1962-05-31
Abstract: 1,028,461. Cellulosic semi-permeable films. S. R. M. ELLIS. May 30, 1963 [May 31, 1962], No. 20948/62. Heading B5B. The selective permeability characteristics of films consisting wholly or partly of regenerated cellulose or of cellulose derivatives is improved by treating the films with hydrazine, e.g. with an aqueous solution of hydrazine containing 10-25% by weight of hydrazine at a temperature of 40 to 70 C. The cellulose derivative may be secondary acetone-soluble cellulose acetate or cellulose triacetate.