baber/WOPTO huggingface dataset:
Patent GB-113152-A (GB)
Title: A New or Improved Electric Switch.
Inventor: LONGFORD HERBERT GEORGE
IPC: H01H36/00
Filed: 1917-02-16
Abstract: 113,152. Longford, H. G., Longford, W. W., and Clark, W. A., (trading as Sphinx Manufacturing Co.). Feb. 16, 1917. Magnetic switches.-An electric switch for use with high-tension currents, especially in situations having a moist atmosphere, is enclosed in an air-tight casing and is actuated by a permanent magnet operated by a handle. A needle b of iron or steel is mounted in a chamber formed in) a base a of insulating material and provided with a central boss a<2> and side openings a<3> in which the ends of the conducting wires are sealed after connexion to screw terminals c. Arranged above the insulating cover e of the chamber is a permanent magnet f mounted on a pivot h' rotatable by a handle h and supported in a cover g. Steel antifriction balls are arranged at each end of the magnet and the needle and a ball serves also as the pivot of the needle. The needle is provided with depending flanges b<3> which make contact with the terminals c. A bar keeper k is provided for the magnet f when in the " on " position and a keeper formed by studs connected by iron wire is provided for the " off " position.
Patent GB-117407-A (GB)
Title: Improved Hand Cigarette Maker.
Inventor: THOMPSON JAMES WALTER
IPC: A24C5/42
Filed: 1918-02-09
Abstract: 117,407. Thompson, J. W. Feb. 9, 1918. Cigarette-making appliances. - In a hand device, the tobacco is placed in the semi-cylindrical part b<1> of a tubular former b, a casing a is slid back on the tube b over the tobacco and caused to engage with a tongue c of the tube, a rammer e pushes the tobacco into the tube, a ring f of the rammer is hooked over a projection g of the casing, and, finally, the rammer and casing are moved together to force the tobacco into a paper tube at the front end of the tube b. A projection h under the tube maintains the casing parallel to the tube, and stops prevent the detachment of the casing from the tube.
Patent GB-239159-A (GB)
Title: Balanced electrical system of winding
IPC: H04M1/02
Filed: 1925-01-27
Abstract: 239,159. Soc. d'Etudes pour Liaisons TÚlÚphoniques et TÚlÚgraphiques Ó Longue Distance. Aug. 27, 1924, [Convention date]. Inductances.-A self or mutual inductance comprises a core C having an axis of rotational symmetry X, X<1>, and one or more windings, eacl. consisting of two halves A, B, and D, E, each arranged with one half on each side of the axis X, X<1>. The windings are themselves symmetrical so that currents flowing through them circulate symmetrically, and the direction of the windings situated on one side of the axis X, X<1> are the reverse of the corresponding windings on the opposite side so that they are magnetically additive in series and subtractive in parallel, and perfect electric and magnetic symmetry is maintained. The various capacities between the windings themselves and between the windings and the cone C or cover F are indicated on the drawings as condensers n, n<1> and m, m1, and m<1>, m<1>, respectively. These capacities are also symmetrical with respect to the axis X, X<1>. The Specification, as open to inspection under Sect. 91 (3) (a) refers to a geometric plane of symmetry X, X<1>. This subject-matter does not appear in the Specification as accepted.
Patent GB-374061-A (GB)
Title: Improvements in or relating to the manufacture of sheet-metal boxes, particularly those for filing documents
IPC: B42F17/02
Filed: 1931-01-26
Abstract: 374,061. Boxes. ZLABEK, K., 43, Podskalskß, Prague. Jan. 26, 1931, No. 2483. Convention date, Jan. 24, 1930. [Class 18.] A box for filing documents and for other purposes is made of sheet metal, and channel-section reinforcing flanges are formed at the top and bottom edges of two of the opposite walls ; for the purpose of receiving filing accessories, slots are made in the edges and bottom of the box. As shown in the Figure, the bottom 1 and lateral walls 2 are made in one piece with strengthening-flanges 3, 4 of channel section. In the flanges 4 are slots 6 for receiving a deformable wire 9, against which rests a board 8, and in the base 1 are formed slots 5 for receiving projections 7 on the lower corners of the board. The end walls 10 are similarly made. The flanges 4 may be bent outwards and the bottom 1 may be made separately. In other forms, the back and front walls are made in one with the bottom, the sides being joined to them ; or all the walls and the bottom are stamped out of a single blank.
Patent GB-207428-A (GB)
Title: Improvements in or relating to vehicle head lamps
IPC: F21V7/09
Filed: 1923-01-27
Abstract: 207,428. Waddicor, J. Jan. 27, 1923. Vehicle lamps. - An anti-dazzle device for vehicle lamps comprises a segmental lining of opaline or milk-white glass or other non-textile material having a like light-diffusing or lightabsorbing surface, for example cardboard, wood or sheet metal painted or enamelled with a paint similar in shade and lustre to opaline glass. The lining is preferably made up of tapered strips a secured bv adhesive to a backing b of rubber or canvas, or the strips may be mounted in hinged metal frames. Alternatively the lining may be moulded to the shape of the lower half of the lamp reflector. The lining is fitted in the lower part of the lamp d, covering about a third or half the lamp reflecting surface e, and extends from the front f to a point behind the bulb g where the outer edges of the strips are bridged by an elastic band c. Small section strips a<1> may also be arranged on the edges of the lining so as to control lateral reflection.
Patent GB-571443-A (GB)
Title: Improvements in or relating to dynamo-electric machines of the homopolar type
IPC: H02K31/02
Filed: 1943-02-15
Abstract: 571,443. Homopolar machines. GEOPHYSICAL PROSPECTING CO., Ltd., and FEKETE, A. F. Feb. 15, 1943, No. 2495. [Class 35] A homopolar machine, which may be used as a generator, or as a motor for driving a gyroscope, comprises a stationary shaft 12 having a central core portion 10 surrounded by an exciting winding 16 and formed on either side with cylindrical poles 19, 20 disposed within the cylindrical pole-faces 22, 23 of a surrounding rotary armature 21 carried by bearings 13, 14 on the shaft 12. Conductors 24 are arranged in or on the pole-faces and are connected to slip-rings 25, 26 rubbing on contact brushes 27 which are connected to the external load or supply by wires passing through the shaft 12. The slip-rings and brushes may be in the form of an anti-friction bearing, comprising a series of balls or rollers 28, Fig. 2, arranged between the slip-ring 26 and a ring 29 secured to, and insulated from, the shaft 12. The balls or rollers may be carried in a cage which is prevented from rotating and, as shown in Fig. 3, the cage 31 may be under the axial pressure of a spring so that the balls 32 make good contact with the internally coned slip-ring 34 and the externally coned collecting ring 33. The ball or roller brushes and slip-rings may also provide the mechanical support for the armature, the bearings 13, 14 then being unnecessary.
Patent GB-574629-A (GB)
Title: Improvements in or relating to electric inductor relays
IPC: H01H51/20
Filed: 1944-02-11
Abstract: 574,629. Electromagnetic switches. EXPRESS LIFT CO., Ltd., WELLS, L. E. W., and GOFFE, F. W. F. Feb. 11, 1944, No. 2549. [Class 38 (v)] In an inductor relay, the passage of a plate of magnetic material through a slot 6 causes the inward attraction of two armatures 12, 13 which are polarized so that they have the same polarity and therefore normally repel each other. The polarization is produced by an E-shaped electromagnet with a coil 4 on a centre leg 5 and two outer legs 2, 3. The armatures 12, 13 carry at their left hand ends two rods which are pivotally connected to each other at their inner ends 14 and the outer ends of which pivot on springs 8, 9 which exert an inward pressure. The pivot 14 is slightly offset so that this pressure causes the rods to buclde togglefashion and the outer ends of the armatures 12, 13 to tend to move outwards or inwards according to whether the pivot is offset to the right or left. A frictional coupling is also arranged between the centre portions of the armatures to prevent bounce. The resultant force on the armatures is outwards till the magnetic plate enters the gap 6, receives at its leading edge a polarity opposite to that of the armatures and attracts them inwards. Arms 18 carried by the armature cause a corresponding inward movement of two contact carrying springs, Figs. 2, 4 (not shown) causing the opening or closing of contacts. A magnetic strip 4, 5 may serve to retain the armatures in their inward position.
Patent GB-989357-A (GB)
Title: Improvements in or relating to drilling heads
Inventor: PILGRIM ALFRED
IPC: E21B10/28
Filed: 1962-01-24
Abstract: 989,357. Boring earth &c. A. GRAFER, and G. NUSSE. Jan. 24, 1962, No. 2604/62. Heading E1F. In a drill head comprising rollers 6-11 mounted on a body comprising parts 2, 3, 4, the parts are held together by a shaft 1 which serves for the connection of the head to the drill rods. The parts are keyed to the shaft and are held together by a nut 15 adapted for engagement with a drill rod. The head carries a spray device 19, and a release collar 18 is interposed between the part 4 and the nut. In a modification facilitating the exchange of rollers, the parts abut at the axes of the rollers and are formed to coact with stub shafts on the rollers so that the rollers are each clamped between abutting parts.
Patent GB-547441-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J5/06
Filed: 1941-02-27
Abstract: 547,441. Cathode-ray tubes. BAIRD, J. L. Feb. 27, 1941, No. 2695. [Class 39 (i)] The parts of a cathode-ray tube liable to break down owing to high voltage are immersed in oil or petroleum jelly. The window for observing the screen is not covered.
Patent GB-538903-A (GB)
Title: Temperature control of contact reactions
IPC: B01J8/02
Filed: 1940-02-13
Abstract: 538,903. Catalytic apparatus and processes. HOUDRY PROCESS CORPORATION. Feb. 13, 1940, No. 2748. Convention date, March 14, 1939. [Class 1 (i)] Contact apparatus comprises a bed of contact material in which are embedded composite conduits, some units of which are used for passing reactants into or out of the contact mass while others which are joined to the first are used for circulating a heat-exchange medium. Fig. 5 shows a typical arrangement of conduits in which perforated conduits A2 are used for distributing reactants and perforated conduits B2 are used for collecting reaction products. The latter are provided with radially extending conduits 77 through which a heat exchange medium circulates and which terminate in transverse fins 78, and with radially extending fins 79. Fig. 1 shows another arrangement in which one series A of distributing or collecting units comprises outer perforated conduits 26 and inner conduits 27 and another series B comprises inner and outer imperforate conduits 29, 30 for the circulation of a heat-conducting medium, to which are attached perforated reaction fluid conduits 31. Specification 449,050 is referred to.
Patent GB-267275-A (GB)
Title: Improvements in pumps for air or gases
IPC: F04D17/18
Filed: 1926-02-01
Abstract: 267,275. Johnston, J. Feb. 1, 1926. Centrifugal Sprengel pumps.-In a centrifugal pump of the Sprengel type the impeller is associated with a cone shaped outlet chamber which converges to a narrow throat; the sides of the chamber are extended beyond the throat and are then divergent. The casing is made in two parts a, b each supporting a bearing c and gland e. In the form of apparatus shown the gas passes through the hollow shaft k<1> and the inside of the impeller g which is formed of two hollow conical members placed base to base. The space between these members and the casing forms the water passage and is in communication with the passages f at each side of the impeller which are supplied from a common inlet. The gas passage in the impeller may have vanes l and the water passage contains a series of perforated rings m of thin plate mounted at right angles to the axis. The water passage converges to the throat h<1> and then diverges to the outlet h<2> the angle of the divergent part being less than that of the convergent part. When passing the throat the water entrains gas from the discharge aperture of the impeller and compresses it within the divergent passage. The discharge passes into a separating vessel and the water may be re-circulated through the pump. When the apparatus is used as a compressor the water circuit is kept closed. The peripheral slot g<1> of the impeller may be subdivided by cross webs, or a series of small apertures may be employed. The liquid may pass inside the impeller and the air entrained from outside.
Patent GB-848778-A (GB)
Title: Process for the production of aromatic diamines
IPC: C07C209/18
Filed: 1959-01-27
Abstract: Aromatic diamines are obtained by reacting primary amines with dihydroxy aromatic compounds in presence of iron halide catalysts and thereafter removing the iron by precipitation in the form of insoluble iron salts.  Preferably, a mixture of at least one primary amine and at least one dihydroxy aromatic compound is prepared and to it is added a catalytic amount of an iron halide catalyst and a liquid hydrocarbon capable of forming an azeotrope with water.  The reaction is then allowed to proceed while the water which is formed is continuously removed in the form of an azeotrope with the hydrocarbon.  The pressure is then released and the temperature is lowered and sufficient of a water-soluble salt is added to the reaction mixture to precipitate all of the iron in the form of an insoluble salt.  Water and excess of reactants are removed, the solution is filtered and cooled, and the formed aromatic diamines are subjected to purification.  Specified primary amines which may be used are aliphatic amines such as primary and secondary butyl, octyl, or nonyl amine; cycloaliphatic amines such as cyclohexyl or methyl cyclohexyl amine; and aromatic amines such as aniline, o-toluidine, 2, 4-xylidine, o-anisidine, and p-anisidine.  The polyhydroxy aromatic compounds may be hydroquinone or a substituted hydroquinone containing as substituent one or more alkyl groups containing 1-20 carbon atoms, or it may be a resorcinol or catechol.  The catalyst may be ferrous or ferric chloride, fluoride, iodide, or bromide.  For precipitation of insoluble iron salt at the conclusion of the reaction there may be used ammonium, lithium, sodium or potassium carbonate, phosphate, sulphide, sulphite, or hydroxide.  Toluene, xylene, or benzene may be used as the liquid hydrocarbon.  The reaction between the primary amine and the dihydroxy aromatic compound may be effected at 100 DEG -350 DEG  C. and at pressures ranging from atmospheric to 20 atmospheres.  Examples describe the production of aromatic diamines by reacting, hydroquinone with aniline, mono-, and di-, amyl- and dodecyl-phenyl amine, o-toluidine, and p-anisidine.  Mixtures of primary amines may be used, e.g., mixtures of aniline and p.anisidine, or of aniline and cyclohexylamine.
Patent GB-494504-A (GB)
Title: Improvements in or relating to method for the preparation of terpene ethers
Filed: 1937-02-01
Abstract: Terpene ethers are prepared by heating an unsaturated terpene compound at 30-60 DEG  C. in the presence of an inorganic acid catalyst with a monohydric alcohol containing at least three carbon atoms or with a polyhydric alcohol.  Terpene compounds mentioned are dipentene, terpinene, terpinolene, a - and b -terpineols, a -pinene, nopinene, camphene, and bornylene; mixtures containing them, e.g. turpentine and pine oil, may also be used.  Alcohols specified are isopropyl, secondary butyl, amyl, tetrahydrofurfuryl, benzyl, stearyl, lauryl, oleyl, abietyl, hydroabietyl, pimaryl and hydropimaryl alcohols; also ethylene glycol, diethylene glycol and glycerol.  The products are useful as solvents and plasticizers in protective coatings and printing inks.  According to the example, wood turpentine is heated with isopropyl alcohol and concentrated sulphuric acid to give a product from which a mixture of terpene isopropyl ethers is separated.  Specification 494,506 is referred to. Samples have been furnished under Sect. 2 (5) of the tetrahydrofurfuryl, ethylene glycol, oleyl and abietyl ethers of pinene, and the ethylene glycol ethers of dipentene and a -terpineol. Each was prepared in the presence of concentrated sulphuric acid except the abietyl ether of pinene, for whose preparation 85 per cent phosphoric acid was used.  The Specification as open to inspection under Sect. 91 also describes the use of any alcohol and mentions, in addition, methyl and ethyl alcohols and ethylene chlorhydrin.  It also describes the use as catalysts of organic substituted inorganic acids of sulphur, e.g. methyl-sulphuric acid, phenol-sulphonic acid, benzene-sulphonic acid and p-toluene-sulphonic acid.  Further examples are included of the preparation of terpene ethers from (1) dipentene, methyl alcohol and sulphuric acid; (2) a -terpineol, methyl alcohol and sulphuric acid; the ether products comprise terpinyl methyl ether, 1 : 8-dimethoxy-menthane and 1 - methoxymenthane - 1 - ol; (3) a -pinene, methyl alcohol and sulphuric acid; the crude products contain terpinyl methyl ether, 1 : 8-dimethoxymenthane and bornyl methyl ether; (4) wood turpentine, methyl alcohol and sulphuric acid; the ether products are the same as in (3); (5) a -pinene, butyl alcohol and methyl-sulphuric acid; terpinyl butyl ether is formed; (6) dipentene, methyl alcohol and phenol-sulphonic acid; the ether products comprise terpinyl methyl ether and 1 : 8-dimethoxymenthane.  This subject-matter does not appear in the Specification as accepted.
Patent GB-791260-A (GB)
Title: Improvements in and relating to seats
IPC: B60N2/34
Filed: 1956-01-30
Abstract: 791,260. Seats convertible into beds &c. WALTER, Ltd., M., and CARTE, C. W. H. June 26, 1956 [Jan. 30, 1956]. No. 2899/56. Class 52(2) In an ambulance &c. seat having seat and back frames 12, 13 pivoted together at 24 so that the back frame can be folded down to form a bed or stretcher-carrier, the rear of the seat frame being lifted during this motion, the seat frame is carried on a base structure 11 by a link 20 at each side and the back frame is detachably pivoted to structure 11 at a point above and to the rear of pivot 24, means being provided for locking the frames in the seating and lying positions. As shown in Figs. 2 and 3, the structure 11 is pivoted to floor-brackets 15 at 14, the back frame carries slotted brackets 26 engaging over pins 27 on the base structure, and locking levers 28 are pivoted at 29 to the base structure and have a notch 31 engaging pins 32 carried by brackets 23 fixed to the back frame. Levers 28 are urged rearwardly by springs. To convert the seat to the lying position, the levers 28 are raised to free the notches from pins 32 and the back frame is pressed down thus pulling rearwardly and upwardly the seat frame to horizontal position. The levers 28 are again released to allow engagement of the notches and pins. To stow the seats, brackets 26 are released from pins 27 and the back frame is folded on to the seat frame turning on pivots 24 and then the whole assembly is swung to upright position about pivots 14, the back and seat frames 'being held together by a second notch 34 on levers 28 engaging pins 32. Stops 33 on the structure 11 prevent the seat frame dropping too far in the seating position. In a modified form, Figs. 5 and 6, the locking means comprises spring loaded plungers 41 taking through aligned holes in brackets 43, 46 on the base structure and, in the seating position, holes 125 in brackets 25 fixed to frame 12 and holes 44 in links 120 supporting frame 12 and, in the lying position, holes 45 in links 120. The plungers have a common actuating lever 35. For stowing, release of the locking means is not necessary.
Patent GB-261951-A (GB)
Title: Improvements in automatic air pumps
IPC: F04B49/12
Filed: 1926-02-02
Abstract: 261,951. Scott, A. Feb. 2, 1926. Stopping pumps automatically.-A device for stopping pumps automatically when a predetermined pressure is attained comprises a second loose plunger E arranged to work in a guide D mounted to the rear of the piston G which delivers by way of the non-return valve c<1> and the duct c to the reservoir o. The piston is operated from an eccentric N attached to a crank shaft or other suitable revolving part of the engine or vehicle, the lever I connected by the link H to the piston being pressed against the eccentric by a leaf spring J secured by a rut M to a bracket L, the end of the spring being slotted to permit variation of its tension and consequently of the pressure at which the pump is stopped. In operation, the pressure established by the pump acts on the rear of the plunger E which gradually moves forward to limit the stroke of the pump by arresting the rearward movement of the link H, the pump stopping when the pressure removes the lever I from the eccentric N.
Patent GB-865490-A (GB)
Title: Process for reactivating catalysts
IPC: B01J38/00
Filed: 1960-01-27
Abstract: 865,490. Grinding. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. Jan. 27, 1960 [Jan. 28, 1959(2)], No. 3029/60. Class 60. Exhausted or inactivated catalysts are reactivated or the activity of catalysts is increased by treating the catalyst mass, continuously during the reaction process or periodically, with finely-divided abrasive, e.g. corundum or carborundum, in a dispersion medium, e.g. an aerosol or suspension.