baber/WOPTO huggingface dataset:
Patent GB-901969-A (GB)
Title: Spray gun
IPC: B05B7/08
Filed: 1959-01-30
Abstract: <FORM:0901969/III/1> A portable electrostatic spray gun, for use in coating systems in which an electrostatic field is created between the gun and article to be coated, comprises an electric motor 7 within a housing 5 which drives, through shafts 39, 45 a hollow rotor 49 into which spray liquid is fed from a pipe 53 and from the sharp edge 50 of which the liquid is atomized.  Air is discharged from orifices 57 in a ring 56 to provide an axially flowing airstream about the edge of the rotor so as to confine the particles to an axial path towards the target A to be coated which is earthed. The rotor is maintained at a high potential by a conductor 25 which connects with the head H mounted on an electrically non-conductive sleeve 36.  As the liquid is discharged from the sharp edge 50 the particles are uniformly charged throughout the transversatility of the spray.  The gun handle has a passage 26 for the motor supply cable, a passage 30 for the spray liquid which flows through a pipe 33 to a pipe 53, and a passage 27 feeding air to the motor housing. Cooling of the motor is effected by this air which then passes through the sleeve 36 and passage 47 to pipes 58 supplying the ring 56.  A motor switch 20 is provided.
Patent GB-313466-A (GB)
Title: Improvements in the production of aldol and crotonaldehyde
IPC: C07C45/66
Filed: 1928-02-06
Abstract: 313,466. Horsley, G. F., and Imperial Chemical Industries, Ltd. Feb. 6, 1928. Drawings to Specification. Aldol; crotonaldehde.-The condensation of acetaldehyde to aldol is carried out while excluding oxygen in neutral or faintly alkaline solution such that the hydroxyl ion concentration, determined with a standard indicator as if the solution were aqueous, does not exceed 0.00001 N. The reaction mixture may be buffered, for example by addition of sodium acetate and a trace of acetic acid. The preferred reaction temperature is 30‹ C. An example is given in which the reaction is conducted continuously, and the withdrawn product is acidified with sulphuric acid and distilled to produce crotonaldehyde.
Patent GB-408558-A (GB)
Title: Improvements in or relating to sheet-feeding devices for paper-working machines, especially printing presses
IPC: B65H5/08
Filed: 1934-02-03
Abstract: 408,558. Feeding sheets. DRUCKMASCHINEN AKT.-GES., Glarus, Switzerland. Feb. 3, 1934, No. 3635. Convention date, Feb. 6, 1933. [Class 100 (i).] Sheets are fed to printing &c. machines by means of grippers 5, 5<1> mounted on bars 20 attached to reciprocating or intermittently moving chains 19 arranged with their operating mechanism under a feed table 2 which is fitted with slots 22 through which the grippers project to receive the sheets from a suction separator 3. The sheets are carried over the table 2 and transferred to the impression cylinder 1 by oscillating grippers 7 fitted with registering devices 6. During this transfer process the grippers are opened by cams 24 which engage rollers 23 on the spring-depressed upper members 5<1> of the grippers, and the end of the chains 19 is depressed by lowering the pivoted frames 11 in which the sprockets 18 are mounted by means of toggle levers 13, 14, operated from an eccentric, not shown. The frames 11 are pivoted about the shaft 10 of the sprockets 16 which operate the chains 19. In order to bring the grippers to rest at the positions in which they receive and transfer the sheets, the shaft 10 is driven by gearing from a geared sector which is oscillated by a crank drive. The grippers are opened and closed at the sheetreceiving position by means of oscillating cams 26.
Patent GB-169660-A (GB)
Title: Bedstead
IPC: A47C19/12
Filed: 1921-01-31
Abstract: 169,660. Kamisaka, I. Jan. 31, 1921. Folding bedsteads.-A folding bedstead comprises posts 1 carrying collars 6, 8, the collars 6 having pivoted thereto bars 4, the other ends of which engage holes 5, while the collars 8 carry pivoted bars 7 connected by members 11 to the plate 9. This plate has incisions 15, and the members 11, which are pivoted at 19, have their movements restricted by the sides 14, 17 of grooves in the plate 9. Springs 10 may be attached to the posts 1, resiliently to support a bed.
Patent GB-637048-A (GB)
Title: Meat slicing and like machines
IPC: B26D1/14
Filed: 1948-02-09
Abstract: 637,048. Slicing-machines. METCALFE IDEAL PRODUCTS, Ltd., and McMILLAN, J. Feb. 9, 1948, No. 3686. [Class 28(ii)] The rotatable circular knife 15 of a meat slicing machine is driven by an electric motor 11 resiliently mounted at each end on a member 17 secured to the main frame. The lower end of the motor casing enters a metal ring 18, to which is bonded a rubber ring 19 enclosed in a split metal ring 20 having a peripheral groove to receive an extending portion 21 of the member 17 and two securing clips 22. The upper end of the motor has a similar resilient bushing 28 held between a projection 35 on the member 17 and a separate slide plate 36 forced towards the projection 35 by a screw 37 engaging a flange 39; the plate being finally secured by screws 40. Specification 637,049 is referred to.
Patent GB-378790-A (GB)
Title: Feed-wheel stops for buttonhole sewing machines
IPC: D05B3/08
Filed: 1932-02-09
Abstract: 378,790. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.). Feb. 9, 1932, No. 3807. [Class 112.] Buttonhole sewing-machines. -A buttonhole s e w i n g - machine of the kind having stitch-forming mechanism, a start- and stop-motion device therefor, a work clamp and a feed wheel which makes a partial rotation during the sewing operation and is then driven quickly through the remainder of the revolution to return it to starting position, is provided with a latch and abutment device to prevent positively overrun of the feed wheel on its return movement. The invention is described as applied to a machine constructed substantially as described in Specifications 15049/15 and 146,587, [both in Class 112, Sewing &c.], wherein the period of operation of the stitch-forming mechanism is controlled by a start- and stop-motion device including a tilting lever 6 which in the vertical position arrests the motion of a main sewing shaft 5, and in the inclined position shown, trips a clutch device to effect the coupling of the shaft 5 to a continuously running belt pulley 8. An auxiliary shaft 10, which is stationary during the operation of an auxiliary buttonhole-cutter, shaft 9 and sewing shaft 5, makes one revolution after stitching is completed to open the work clamp, release the tension device and return rapidly the feed wheel to initial position. An overthrow-preventing latch 24 fulcrumed at 25 to the machine bed has a rearward extension provided with a tooth 30 which is engaged at times by a shoulder 31 on the forward end of a link 32 pivotally connected to an arm 34 pinned to a fulcrum shaft 35 to which the start- and stop-motion lever 6 is secured. The latch 24 is moved, when the lever 6 is tilted to the position shown, to discharge a lateral extension 26 on the latch 24, and which overlaps the rim of the feed wheel, from a stop shoulder 28 on the feed wheel to free the feed wheel 17 for the stitching operation. A spring 29 depresses the latch. When the lever 6 returns to vertical position the extension 26 is carried by the spring 29 into the leading end 27<1> of a groove 27 in the feed wheel 17 to abut the shoulder 28 and the wheel 17 is quickly turned through the remainder of its revolution. A needle thread trimmer device 37 is pivotally mounted at 36 on the upper clamp foot 21 and is operated to cut and nip the thread toward the side of the clamp foot and away from the median line of the work clamp. A cam 44 on the feed wheel 17 engages an arm 45 after the sewing has well started and, as the heel 44<1> of the cam passes this, a spring is suddenly released to close the trimmer 37. A cam on the auxiliary shaft 10 actuates the trimmer a second time after the completion of sewing.
Patent GB-451256-A (GB)
Title: Improvements relating to the control of manually operable brakes
IPC: D02G3/00
Filed: 1935-02-06
Abstract: 451,256. Locking brake - levers. GEMMILL, D. T., 'Nellan, Drumchapel Road, Bearsden, Dumbartonshire. Feb. 6, 1935, No. 3815. [Class 79 (iii)] [See also Group XXXIV] A locking device for a hand brake-lever is adapted to be released by a magnet controlled by a switch on the hand-lever in conjunction with another switch which may be the ignition switch of the vehicle, the object being to prevent unauthorized release of the brake. The device shown in Fig. 5 comprises a magnet 15 mounted on the brake hand lever 10 and an armature plate 25 carrying a pawl 13 slidable in guides 24 on the lever and adapted to engage a rack 14 secured to a frame member of the vehicle. The plate is further guided by spring-pressed pins 27 thereon extending into the cores of the magnet. A cover plate 29 secured to the lever prevents access to the armature 25. In Fig. 1, the pawl and magnet are arranged above the rack. The circuit of the magnet shown in Fig. 1 includes leads d, f, a push-button switch 16 on the hand lever and the switch 17 which is also that for the engine ignition circuit b, c and may be closed only by a special key. Thus the pawl 13 may be disengaged to release the brake by closing the switch 16 only when the switch 17 also has been closed. In addition to the ignition switch an additional key-operated switch may be provided whereby the brake may be released by persons such as garage workers who are not, however, authorized to start the engine. The lever may be provided with a positive locking device for preventing movement in both directions instead of with the ratchet-and-pawl device.
Patent GB-1369784-A (GB)
Title: Windows
IPC: F24F5/00
Filed: 1973-01-25
Abstract: 1369784 Circulating air between double glazed panels SULZER BROS Ltd 25 Jan 1973 [25 Jan 1972] 3850/73 Heading E1R A double-glazed, openable windor (or door) 22 includes air inlet and outlet ducts, e.g. 2, in the fixed frame which communicate with respective inlet and outlet openings, e.g. 6, in the window which communicate with the space between the double glazing to admit cooled air in summer and heated air in winter, the air outlet duct including a valve arranged to be automatically closed on opening the window. Preferably an identical valve 9 is positioned in the air inlet duct and comprises a flap 9 spring-loaded by a spring 10 to the closed position and having a flange 11 engageable by the window in its closed position to open the valve. For a slidable window, the valve may be a slidable member entrained by the window. Foraminous sheets 13 cover the inlet and outlet openings 6.
Patent GB-548061-A (GB)
Title: Improved process for mothproofing furs
Filed: 1941-03-21
Abstract: 548,061. Mothproofing furs; leather. TRAILL, D., McLEAN, A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 21, 1941, No. 3862. [Classes 76 and 140] Furs are mothproofed by immersion, for a time exceeding seven hours, in an aqueous formaldehyde solution having a saline concentration sufficient to prevent the untanned skin from swelling, i.e. not less than 1.5 molar and acidified to pH value not exceeding 2.5. Suitable salts are sodium, potassium, magnesium, aluminium or ammonium chlorides or sulphates or calcium chloride. Suitable acids are sulphuric, phosphoric, hydrochloric, acetic, lactic, oxalic or citric acids. Tanned or untanned skins may be treated. The treatment has itself a tanning effect. If the fur is to be dyed, excess proofing solution is removed by centrifuging, the flesh side is fat liquored, dried and cleaned with sawdust. Otherwise the treated furs are washed free from formaldehyde and dried.
Patent GB-688115-A (GB)
Title: Improvements relating to thermionic valve amplifiers
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03F1/50
Filed: 1949-02-12
Abstract: 688,115. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 11, 1950 [Feb. 12, 1949], No. 3885/49. Class 40 (vi). In a broad-band amplifier the self-inductance of the anode decoupling condenser and its leads is utilized to increase the band-width. As applied to an arrangement in which the anode circuit comprises load resistance 5 in series with inductance 6 and shunt condenser 8, together with decoupling resistance 7, the whole being shunted by the output-capacity 13 of the valve, the self-inductance 10 of decoupling condenser 9 and its leads is included as one element of the frequency-correcting network; if necessary, further inductance may be added in series with the decoupling condenser. The Specification gives mathematical expressions from which the conditions for maximal flatness of response may be determined. Specification 654,090 is referred to.
Patent GB-966396-A (GB)
Title: Improvements in or relating to voltage multiplying devices
IPC: H05B6/66
Filed: 1962-02-01
Abstract: 966,396. Rectifying. HUSQVARNA VAPENFABRIK A.B. Feb. 1, 1962 [Feb. 2, 1961], No. 3915/62. Heading H2F. A double-sided cascade-type voltage multiplier-similar to that disclosed in Specification 770,605 and comprising components 1,2, 3,4,5,6, 7, is applied to a three-phase supply. As shown, a mirror-image set of components 11 . . . 17, whose rectifiers are reversely poled, is provided to double the output voltage. In a further embodiment (Fig. 2, not shown) an additional stage is included in the top and bottom halves.
Patent GB-1298871-A (GB)
Title: Improvements in differential arrangements for motor vehicles having multiple different axles
Inventor: RYC OLDRICH
IPC: B60K17/36
Filed: 1970-01-27
Abstract: 1298871 Vehicle driving gear TATRA NARODNI PODNIK 27 Jan 1970 3944/70 Heading B7H A multiple driven axle vehicle has four axles 10 arranged in two groups. The axles in each group are driven by driving mechanism 11 comprising axle differentials 12 and an interaxle differential 13. Hollow shafts 14, with a housing 15, connect the axle differentials 12 and inter-axle differential 13. The driving mechanisms 11 are interconnected by a group differential 16 within a housing 17 coaxial with housings 15 and connected to form a min undersupport for the undercarriage of the vehicle.
Patent GB-123818-A (GB)
Title: Improvements in Differential Mechanism for Key Set and Key Operated Cash Registers and like Registering Machines.
Inventor: HADDAN ALFRED JOHN HENRY
IPC: G06C7/10
Filed: 1918-03-06
Abstract: 123,818. Haddan, A. J. H., (National Cash Register Co.). March 6, 1918. Differential mechanism for key-set key-operated cash registers and having a key-coupler comprises a pair of members movable to complementary extents for actuating a totalizer, means movable to an invariable extent for operating said members, and keys controlling the extents of movement of said members. A similar differential mechanism is provided for each of the three bands of keys, that described being for the units mechanism. A shaft 88 projects through slots 89 formed in the vertical sides of frames 90, 91, of which the frame 90 is positioned within the frame 91 and is carried in slotted arms 117 pivoted on a shaft 118. Two pinions 93, Fig. 4, on the shaft 88 mesh with racks 94, 95 on the sides of the frames 90, 91. The forward ends of the sides of the frames are guided by slots engaging fixed pins 97. The right-hand side of the frame 90 is provided with a pin 98 which is engaged by an arm 100 fixed to a frame 103 which by means of end bosses 102 is pivoted on a shaft as shown. The lower edge of the frame is engaged by surfaces 104 on the amount keys, so that, when one of the latter is depressed, the frame and arm 100 are rocked counterclockwise, Fig. 2, against a spring to raise a projection on the arm 100 from the pin 98. The shaft 88 is then moved forwardly an invariable extent by pins on an arm 53 of the key-couple 36 which pins move in slots in the arms 117. The base of each of the frames 90, 91 is provided with nine steps, the steps on one frame being arranged complementary to those on the other, so that the sum of the movements of the two frames will always equal nine units. When a key is depressed, its edge moves into the path of a step 105. During this movement, the shaft 88 and the two frames move forward until the frame 90 is arrested by the depressed key, whereupon the pinions rotate clockwise and the frame 91 is moved forwards at twice the speed until the shaft 88 reaches the limit of the slot. If no key is depressed, the frame 90 is locked and the frame 91 moved nine units. A pinion fast on the 'shaft 88 moves the unitsactuating rack 110 a distance corresponding with the value of the depressed key. The frame 91 controlled by the tens bank of the keys is positioned within the frame 90. The pinions 93 are loose on the shaft 88, and the left-hand side of the frame 90 forms the tens-actuating rack 114. A pin 98 and arm 100 are provided as before. For the hundreds bank, the frame 90 is positioned within the frame 91 and the right-hand side of the frame forms the hundreds-actuating rack 116, the pinions 93 being loose on the shaft
Patent GB-646966-A (GB)
Title: Manufacture of an organic dinitrile
Filed: 1948-02-11
Abstract: A process for the manufacture of 1 : 4-dicyano-2-butene comprises reacting hydrogen cyanide with a dihalo addition product of 1 : 3-butadiene or mixture of such products, wherein the halogen atoms are of atomic weight between 35 and 80 in the presence of a suspension comprising water, a copper salt catalyst and a carbonate of a metal of Group II of the Periodic Table in amount sufficient to neutralize the hydrogen halide formed, the hydrogen cyanide being introduced gradually during the reaction into the reaction mixture, said reaction being carried out at a pressure not substantially above atmospheric pressure and at a temperature between 60 DEG  C. and the boiling point at atmospheric pressure of the aqueous phase.  The hydrogen cyanide and the dihalo addition products of 1 : 3-butadiene may be introduced into the reaction mixture gradually during the reaction.  1 : 4-Dihalo-2-butene and 3 : 4-dihalo-1-butene or mixtures of the isomers, and the crude chlorination products obtained on chlorinating butadiene may be employed as starting materials.  The hydrogen cyanide, which may be optionally diluted with water, is preferably added at a rate not substantially faster than its rate of reaction with the dihalo addition product or products.  As catalysts may be employed cuprous chloride-alkali metal halide or cuprous chloride-ammonium chloride complexes, cuprous chloride, cuprous cyanide, metallic copper or cupric salts, the latter being converted to catalytic complexes under the reaction conditions. Enough water should be present to avoid excessive cooling by evaporation of the hydrogen cyanide.  The reaction medium may contain organic solvents. In the following examples 1 : 4-dicyano-2-butene is produced when (1) 1 : 4-dichloro-2-butene mixed with hydrogen cyanide is run into a heated mixture of cuprous chloride, potassium chloride, copper powder and concentrated hydrochloric acid, to which has been added calcium carbonate, the mixture having been prepared under nitrogen; (2) (1) is repeated but the catalyst is not prepared under nitrogen; (3) 3 : 4-dichloro-1-butene is reacted in a similar process to that described under (1); (4) 3 : 4-dichloro-1-butene in hydrogen cyanide is added to a heated mixture of calcium carbonate, cupric sulphate and water. Similar results are obtained when copper sulphate is replaced by copper nitrate, copper acetate, cuprous chloride, cupric chloride, cupric fluoride or copper acetylacetonate.  In addition hydrogen cyanide may be dissolved in water, bubbled in the gaseous form through the reaction mixture, both reactants may be added separately at different rates or the dihalobutene may be added first to the mixture of water, carbonate and catalyst.  The presence of an inert atmosphere is not essential.  Specifications 646,964 and 646,965 are referred to.
Patent GB-684535-A (GB)
Title: Heat insulating means for heat generators
IPC: E04C2/296
Filed: 1951-02-19
Abstract: 684,535. Nonconducting coverings for heat. MASDEU, J. B. Feb.19,1951 [Feb. 27, 1950], No. 4000/51. Class 64 (ii) In heat insulation for heat generators, impalpable mica powder A is contained in a quilted cover B which is placed in turn in a non-inflammable cover C and metal gauze D is applied to that surface of the cover C which contacts the generator surface, to prevent frictional wear. The covers B, C are of cloth, the outer cover C being treated with paint to withstand temperatures exceeding 250‹C. Several complete covers may be joined by sliding clasp fasteners, press studs or buckles to form a complete cover for a generator surface.
Patent GB-1397407-A (GB)
Title: Aluminium containing pharmaceutical compounds
IPC: C07F5/06
Filed: 1972-01-28
Abstract: 1397407 Aluminium containing pharmaceutical compounds HARDMAN & HOLDEN Ltd 4 July 1972 [6 July 1971 28 Jan 1972] 31658/71 and 4035/72 Heading C2C Process or the production of a pharmaceutically active composition comprises intimately mixing in the absence of a solvent or diluent an aluminium alkoxy compound with a solid pharmaceutically active compound containing one or more groups capable of displacing the alkoxy groups, the pharmaceutically active compound optionally having either liquid water adsorbed on it or ice intimately mixed with it and, where necessary heating the mixture to remove the alcohol which is liberated. The mixture is heated to a temperature not exceeding the boiling point of the alcohol liberated. The pharmaceutically active compound may be premixed with ice or water and the temperature allowed to rise after addition of the aluminium alkoxy compound to permit a condensation reaction and hydrolysis. A fatty acid or alcohol or a surfactant may also be added. The process may take place in the heated extruder barrel of an injection moulding machine and the formed composition is extruded from the outlet of the machine as shaped elements. The pharmaceutically active compound is sodium penicillin B, paracetanol nicotinic acid, ascorbic acid, calciferol methylthiouracil, oxytetracycline, p-(dipropylsulphamoyl) benzoic acid, acetyl salicylic acid salicylic acid or 3-o-methoxy phenoxypropane-1,2-diol. Novel hydrolysed condensation product is prepared from one mole of aluminium isopropoxide and 1 to 2 moles of 3-omethoxy-phenoxy-propane-1,2-diol.
Patent GB-633125-A (GB)
Title: Improvements in and relating to the winding elements of electrical machines
IPC: H02K3/44
Filed: 1946-02-09
Abstract: 633,125. Moulding electrical apparatus. SIGMUND, F., and HLAVIN, W. S. Feb. 9, 1946, No. 4098. [Class 87 (ii)] [Also in Group XXXV] A metal sleeve disposed in the slot of a dynamoelectric machine has a slit for the introduction of the conductors subsequently bridged and sealed by insulating material as shown. Each slot is lined with a metal sleeve 17 coated with vitreous or other insulation 27, 28 and having its edges bonded in insulation 20. Each coil is then placed in position in the slots, the wound core is placed between moulds 32, 33, Fig. 2 and thermoplastic insulation is introduced through openings 37 in the injector tube 36 to fill the slot mouths as at 29 in Fig. 3 and form rings 30, 31 bonded to the ends of the sleeves 17 and to the insulation 14, 15 applied to the end conductors before the core was wound. Outlets 35 are provided in mould 33 just above the required surface of ring 31 for the escape of superfluous insulation and the thickness of ring 30 is determined by packing 34. The core may be heated by liquid in tube 39 and jacket 40. To facilitate the dissipation of heat the external insulation 27 on sleeve 17 may be omitted. Specification 633,126, [Group XXXV], is referred to.