baber/WOPTO huggingface dataset:
Patent GB-941797-A (GB)
Title: Improved procedure for preparing dulcitol
IPC: C07C31/26
Filed: 1962-04-09
Abstract: Dulcitol is produced by heating an aqueous solution of lactose containing 10-50% by weight of lactose and adjusted to a pH of 1.0-3.0 to a temperature in the range 70-110 DEG C. for a time such that the number of "degree-hours" above 68 DEG C. is at least 16 and the number of "degreehours" above 80 DEG C. shall not exceed 50, but in no event heating the solution above 70 DEG C. for more than 30 hours, hydrogenating the resulting partially hydrolysed lactose solution in the presence of a supported nickel hydrogenation catalyst under the following conditions:-  Catalyst concentration-0.5-4% by weight of nickel based as carbohydrate pH of solution -2.0-4.0 Temperature -160-200 DEG C. Hydrogen pressure -500-300 p.s.i.g.; and recovering dulcitol from the reduced solution after removing the catalyst by filtration. The term "degree-hours" above a specified temperature is defined as the number obtained by multiplying the time in hours during which the solution is heated by the difference in degrees between the stipulated temperature and the temperature during heating.  In addition to dulcitol some sorbitol and lactositol may also be formed.
Patent GB-460262-A (GB)
Title: Circuit arrangement for providing a back-coupling to a control grid in an electron valve
IPC: H04B1/16
Filed: 1936-05-13
Abstract: 460,262. Valve circuits for wireless reception. BANG & OLUFSEN AKTIESELSKABET. May 13, 1936, No. 13595. Convention date, May 14, 1935. [Class 40 (v)] Reaction in a high-frequency amplifier in which the output circuit is tuned to the same frequency as the input circuit is provided by back-coupling to a Wheatstone-bridge circuit, the input being one diagonal of the bridge. The Figure shows a coil 13 in series with the input circuit 2, 3 to which is coupled a coil 4<11> in the anode circuit. A tapping 16 is provided and a condenser 14 which with the grid cathode impedance and the two parts of the coil 13 form a bridge with the input 2, 3 connected across one diagonal. To avoid lack of symmetry due to capacitive coupling between the coil 4<11>, 13 an electrostatic screen may be interposed between them or by dividing the anode inductance, as shown, so that the part 4<11> is smaller than the part 4<1>. Capacitive coupling between the grid and anode of the valve may be avoided by the use of a screen grid valve or the use of a neutralizing circuit. The coil in the anode circuit may be arranged in series with a condenser, Fig. 4 (not shown).
Patent GB-259146-A (GB)
Title: Improvements in strainers for beer taps or engines, or the like
IPC: B67D1/16
Filed: 1926-05-28
Abstract: 259,146. Hales, A. May 28, 1926. Filters or strainers fitted at end of pipes. - A strainer for beer taps, engines or the like comprises a claw clip 1 lined with rubber 3 over which a fabric straining medium 6 is held by an elastic cord 5. The rubber 3 is fixed to the clip by means of pins 4.
Patent GB-180319-A (GB)
Title: Improvements in vehicle tires
IPC: B60C7/12
Filed: 1922-05-15
Abstract: 180,319. Preston, C. S. May 18, 1921, [Convention date]. Non-metallic elastic bodies and cores. -A rubber or other tyre which may be reinforced with fabric is formed with one or more circumferential apertures C arranged over a corresponding number of supporting-ribs B bearing on the wheel rim K. The side walls of the tyre are connected by webs F, which are placed in tension when the tyre is deformed under load. The rib or ribs B may be formed separately from the tyre, in which case the webs F are joined to bridge the ribs, as shown in Fig. 2. For use with light loads, additional air spaces e may be arranged at the sides of the main apertures C. The tyre may be formed with beaded edges a<1> to engage a channel rim, or it may be vulcanized to a metal foundation band.
Patent GB-1218932-A (GB)
Title: Improvements in electric lampholders
Inventor: RUSTON REGINALD
IPC: H01R33/22
Filed: 1968-03-21
Abstract: 1,218,932. Lampholders. ROWLANDS ELECTRICAL ACCESSORIES Ltd. 21 March, 1969 [21 March, 1968], No. 13665/68. Heading H2E. In a screw lampholder having a circular socket, the screw thread, which may be of only one turn, is formed of resilient bar-like members 27 obliquely located relative to the axis of the socket and extending as chords relative to the internal surface of the socket, the lampholder contacts comprising a centre contact 16 adjacent an end wall 12 of the socket, and a side contact formed to present a plurality of contact tongues 25, joined by connecting portions 26, evenly spaced around the socket circumference, these portions also acting as a centering means for the end of a lamp when screwed into the socket. The centre contact includes a portion which overlies a boss (15, Fig. 1, not shown) formed in the end wall 12. The side contact tongues 25 are formed by slicing sheet metal stock along a zig-zag castellated or sinuous path (Fig. 3, not shown) the width of the tongues preferably being the same as the width of the spaces between them. The lampholder body 10 may be porcelain, and both side centre contacts may be of beryllium copper alloy.
Patent GB-127276-A (GB)
Title: Apparatus for Use in Sighting and Dropping Bombs or other Objects from Aircraft.
Inventor: VIAL JULES
Filed: 1916-09-26
Abstract: 127,276. Vial, J. Sept. 16, 1915, [Convention date]. Sights and methods of sighting.-Relates to bomb-dropping apparatus having the two-way sighting - device described in Specification 26841/13, in which the time t taken by an object on the ground to pass from one line of sight to the other is observed, and in which the lines of sight are so selected that the correct instant for releasing the bomb is at an interval after the second sighting of the object, equal to the difference between the time t and the time of fall of the bomb. The invention consists in a watch device, to determine the instant for releasing the bomb, comprising a dial, a seconds hand n provided with reversing-gear, and a firing mark adjustable in accordance with the time of fall of the bomb. The watch is started when the object passes the first line of sight, and reversed when the object passes the second line, the correct instant for dropping the bomb being when the hand, in its backward movement, reaches the firing mark. In the construction shown in Fig. 1, the firing mark b is on a ring a adjustable around the dial and marked with a scale of altitudes c<1>, the ring being adjusted to bring the correct altitude opposite a mark c. A second scale of altitudes d<1> is also marked on ths ring for use with a different type of bomb. The reversing-gear is controlled by a lever q. A device such as a Geneva stop may be used for stopping the hand at zero in its return movement.
Patent GB-682714-A (GB)
Title: Improvements in or relating to measuring tapes and mounts therefor
IPC: G01B3/10
Filed: 1950-06-01
Abstract: 682,714. Measuring-tapes. STAMM, W., and STAMM, M., (trading as STAMM & CO.). June 1, 1950 [June 13, 1949], No. 13691/50. Class 106 (ii). A non-metallic measuring tape 4 is detachably secured to its winding reel 3 by introducing a terminal coupling 6 with an enlarged retaining head laterally into a correspondingly-formed slot 5 in the reel. The reel is journalled on a central pin 2 on a circular base 1, and the wound tape is enclosed by an annular cover 9 fitted to the base 1 and cut-away over a quarter of its circumference to give access to the tape. A retractable winding handle 7 may be mounted in a counterbored hole in the reel.
Patent GB-1107601-A (GB)
Title: Improvements in or relating to electric resettable trip free circuit breaker
IPC: H01H1/40
Filed: 1965-03-31
Abstract: 1,107,601. Automatic circuit breakers. HONEYWELL Inc. 31 March, 1965 [12 May, 1964], No. 13734/65. Heading H1N. An electrothermally released switch which is closed by a push-button 70 has a resilient bridging contact member 63 loosely mounted in a carrier 45 slidable with respect to fixed contacts 50, 51. When push-button 70 is depressed it first drives the contact 63 to the bottom of its carrier 45, cam portions 64, 65 of the carrier lifting the ends of contact 63 away from the fixed contacts, and then forces the carrier 45 downwards to be latched by the free end of a bimetal 20, 21. Subsequent release of the button 70 permits contact 63 to rise in the carrier 45, its ends springing outwards to engage the fixed contacts. If bimetal 20, 21 is then bent due to heating by a resistor 32, the latch is released and carrier 45 rises, contact 63 sliding away from the fixed contacts to open the circuit. The switch cannot be held closed since whenever pressure is applied to the pushbutton, contact 63 is lifted away from the fixed contacts. The leg 20 of the bimetal is supported by a deformable support 23 (Fig. 1, not shown) whose position can be adjusted by a screw 25 and this leg serves for ambient temperature compensation since it is largely isolated from the effect of resistor 32 by means of a perforation 42. Auxiliary printed contacts 85, 90, 91 (Fig. 2, not shown) are engageable by a sliding contact 80 attached to carrier 45.
Patent GB-769284-A (GB)
Title: Novel isoindoline derivatives and a process for the manufacture thereof
Filed: 1955-05-13
Abstract: The invention comprises benz-isoindolines of the general formula <FORM:0769284/IV(b)/1> wherein R represents hydrogen, an alkyl or alkenyl group containing from 1 to 5 carbon atoms, an aralkyl group or a dialkylaminoalkyl group, and salts thereof, and the preparation thereof by reacting 2,3 - di - (bromomethyl)-naphthalene with at least 3 mols. of ammonia or the required primary amine in an organic solvent and, when required, converting the product into a salt.  The group R may be a methyl, ethyl, propyl, isopropyl, allyl, benzyl, dimethylaminomethyl, dimethylaminoethyl, diethylaminoethyl or diethylaminopropyl group.  Suitable organic solvents for the reaction are methanol, ether, dioxane, carbon tetrachloride and benzene.  Acid addition salts may be derived from hydrochloric, hydrobromic and phosphoric acids, and quaternary salts may be derived from a lower alkyl halide such as methyl iodide, an aralkyl halide and phenyl sulphonic acid.  In the examples: 5,6-benz-isoindoline and its 2-methyl, 2-ethyl, 2-isopropyl, 2-allyl, 2-benzyl, 2-(b -dimethylaminoethyl) and 2-(g -dimethylaminopropyl) substituted derivatives and salts thereof are prepared.  The following starting compound is referred to: 2,3-Di-(bromomethyl)-naphthalene is prepared by heating 2,3-dimethyl-naphthalene with N-bromosuccinimide in carbon tetrachloride in the presence of a small amount of benzoyl peroxide.
Patent GB-477749-A (GB)
Title: Method of and apparatus for the conditioning of air in flour mills
IPC: F24F3/147
Filed: 1937-05-18
Abstract: 477,749. Ventilating flour mills. OSTBYE, R. May 18, 1937, No. 13869. Convention date, May 19, 1936. [Class 137] Air from a grinding-mill 3 is withdrawn by a fan 4 through ducts 14, 15, the moisture and heat in this air being utilized by re-introduction of a proportion of the air into the atmosphere around the grinding-mill, a valve 5 determining what proportion of the air passes through pipe 7 to the outside and what proportion is returned through duct 6 to maintain the desired humidity and temperature. The outgoing air passes through a duct 7 in countercurrent to the fresh air, which enters by duct 1 in heat-exchange relation to duct 7, and which is thereby heated. The air may further be heated by heating means in the air ducts. The damper 5 may be controlled by a hygrometer to render the plant automatic.
Patent GB-180885-A (GB)
Title: Improvements in boiler superheaters
IPC: F22G7/14
Filed: 1921-05-18
Abstract: 180,885. Perry, C. S. D. May 18, 1921. Angle pieces, junction pieces, and the like.- Junction pieces or connections on the steam pipes for the connection of the branch distributing and collecting pipes cf a superheater are constructed as shown in Fig. 7 Plates, walls, and the like, securing pipes and tubes to; hinge and swivelling joints.-Copper faced ball-jointed union joints, Fig. 8, are used to form tight connections between superheater elements 28 and the headers. The socket like member 34 which is screwed to the header 27 receives the ball faced member 35 to which is screwed the superheater element 28, the members 34, 35 being held permanently seated by a jam nut 36.
Patent GB-1093011-A (GB)
Title: Vehicle for transporting material such as solid fuel in bulk
Inventor: SMITH WALTER ARTHUR
IPC: B60P1/44
Filed: 1965-04-02
Abstract: 1,093,011. Sack elevating apparatus. CHARROLD Ltd. July 1, 1966 [April 2, 1965]. No. 14018/65. Heading B8E. A coal delivery vehicle having a discharge conveyer and a weighing mechanism has hydraulically, electrically or pneumatically operated arms to raise a filled sack to a position fo unloading. The arrangement is such that activation of a lever causes the arms to rise to and stop in their elevated position until the sack is unloaded when the arms automatically lower to their initial position. Various valve and switch arrangements are described to effect the desired cycle. The activating lever may be spring urged to its neutral position.
Patent GB-168827-A (GB)
Title: An improved means for locking the change speed or other levers to prevent unauthorised use of motor road vehicles
IPC: B60R25/00
Filed: 1921-01-17
Abstract: 168,827. Lee, H. J. Jan. 17, 1921. Locking while standing.-Means for locking change-speed or other levers of motor road vehicles to prevent unauthorized use thereof comprise a member slidably mounted on the lever, and a lock mechanism carried by the member, and adapted to retain it either in engagement with, or disengagement from, the usual gate slots. As shown, the movement of the member 12 is controlled by the tongue 1<a> of a lock 1, guided by a slot 13a in the lever. When the lever is in neutral position, the lower part of the member may be engaged in the gate 18, as shown in Fig. 3, and the tongue partly withdrawn from the slot by the lock, which may be of the type described in Specification 150,400, thereby permitting a spring-pressed ferrule to enter a recess 13b at the lower end of the slot, and thus lock the lever. A similar operation of the lock mechanism when the slidable member is in its upper position permits. the convex end of the spring-pressed ferrule to engage in a concave recess 13<c> at the upper end' of the slot, thus retaining the member in the inoperative position.
Patent GB-1202824-A (GB)
Title: Emergency lighting system for gaseous-discharge lamps
IPC: H05B41/46
Filed: 1969-03-18
Abstract: 1,202,824. Lamps. ESQUIRE Inc. 18 March, 1969 [14 May, 1968], No. 14119/69. Heading F4R. [Also in Division H2] A lighting fitting 10 for use in an emergency lighting system comprises a gaseous discharge lamp 22 arranged between two incandescent lamps 24, 26. The discharge lamp 22 is used for normal illumination and the lamps 24, 26 form the emergency light source and tend to maintain the ambient temperature in the fitting 10 to enhance the striking of the discharge lamp when the supply voltage returns to its normal value.
Patent GB-1274586-A (GB)
Title: Apparatus for the production of steam for humidifying air
Inventor: CARLSSON BENGT HENRY
IPC: F24F6/00
Filed: 1970-03-24
Abstract: 1,274,586. Air humidifier. K. J. LEHMKUHL. 24 March, 1970 [2 April, 1969], No. 14174/70. Heading B1R. A humidifier of the type comprising a container 1 wherein electrodes 4 are partially immersed in water and water is supplied to the electrode container from a control container 18 has a water supply conduit 22 connected to the control container 18 and having an electrically operated magnetic valve 24 for controlling the supply of water through the conduit 22, an adjustable regulator 46 controlling the opening and closing of the valve.
Patent GB-457040-A (GB)
Title: Circuit and electron tube for the production of beat frequencies
IPC: H03D7/10
Filed: 1935-05-15
Abstract: 457,040. Thermionic valves and circuits therefor. VEREINIGTE GLUHLAMPEN UND ELECTRICITATS AKT.-GES., Ujpest, near Budapest. May 15, 1935, No. 14249. Convention date, May 15, 1934. [Classes 39 (i) and 40 (v)] A valve for the production of beat frequencies has six electrodes interposed between the cathode 2 and anode 3. The first 4 and second 5 or rod electrode-counting from the cathode are included in the local oscillating circuit 13 ; the fourth 7 is connected to the tuned input circuit ; the third 6 and fifth 8 are connected together and are at a constant positive potential. The sixth 9 is also at a positive potential, which may be the same as that of the third and fifth, to which it may be connected within the valve. The rod electrode 5 is at the same potential as the main anode. The cathode is earthed through the resistance 21. A stabilizing condenser 16 is included in the primary winding connected to the rod electrode 5. The wires of the grids 8, 9 may be in register or each of these grids may be formed of annular discs with concentric holes. The Specification as open to inspection under Sect. 91 also states that one electrode in the form of discs may replace the two disc electrodes 8, 9. This subject-matter does not appear in the Specification as accepted.
Patent GB-600836-A (GB)
Title: Improvements relating to curtain supports and like fittings
IPC: A47H1/19
Filed: 1945-06-06
Abstract: 600,836. Curtain supports. RICHARDSON, W. June 6, 1945, No. 14297. [Class 20(i)] A curtain rod is supported by means of L-shaped plates a each having one limb adapted to be placed against the sides of the recess or reveal c in which the curtain rod is to be fixed, and the other against the wall b. The plates a carry the rod g by means of sockets f which on being screwed along stems e on the plates clamp the fitting in place. Only one socket may be screw adjustable. The rod g supports curtains directly or indirectly and expanding wire rails d support curtains or valances.
Patent GB-116436-A (GB)
Title: Improvements in and relating to Ship's Rudders.
Inventor: RAMSAY JOHN MANSON
IPC: B63H25/38
Filed: 1917-10-04
Abstract: 116,436. Ramsay, J. M. Oct. 4, 1917. Frames.-In vessels, particularly those having " cruiser sterns," the rudder trunk B is made so that the coupling A can be readily inserted or removed and attain any of its working positions without obstruction. Inspection holes D with covers E are fitted.
Patent GB-1084736-A (GB)
Title: Improvements in refrigeration apparatus
Inventor: SMITH HOWARD JOHN TREWEEK
IPC: F25B9/00
Filed: 1963-04-10
Abstract: 1,084,736. Refrigerating; thermal regenerators. PETROCARBON DEVELOPMENTS Ltd. April 8, 1964 [April 10, 1963], No. 14351/63. Headings F4H and F4K. A method of producing refrigeration comprises passing gas under pressure through a regenerator 12 and into a tube 10 having a closed end 11, cooling the closed end of the tube and exhausting the gas from the tube via the regenerator to produce refrigeration adjacent the open end of the tulbe. The regenerator 12 communicates via a pipe 20 with a line 21 connected at one end to the outlet 22 and at the other end with the inlet 23 of a compressor 24. Line 21 also includes an after-cooler 25, gasreservoirs 31 and 32, and valves 26 and 28. Initially valve 26 is opened for 0À24 seconds while valve 28 is closed to admit gas to the tube, the closed end of which is cooled by water flowing through a tube 13. After 0À045 seconds from the closure of valve 26 valve 28 is opened while valve 26 remains closed to exhaust the gas from the tube. In flowing out of the tube the gas expands to produce refrigeration adjacent the open end of the tube to cool a pipe 16 through which a fluid to be cooled is circulated. The refrigeration produced may be utilized to cool the end of another tube supplied in parallel with gas from line 21. Thus in Fig. 3 (not shown) two tubes are shown having a common regenerator and further comprising a second regenerator for the second tube while in Fig. 6 (not shown) three tubes, each having a separate regenerator, are provided. The working medium may comprise argon or air and, if the latter, is supplied from a compressed-air source to the tube and exhausted to atmosphere. The pressures and temperatures obtaining in the system are specified together with prefe rred dimensions of the apparatus. The regenerators comprise stainless steel cylinders packed with discs of 200-mesh stainless steel gauze.
Patent GB-578140-A (GB)
Title: Improvements in or relating to holdfasts
IPC: B25B5/08
Filed: 1944-07-27
Abstract: 578,140. Clamps. JOHANSSON, A. N. July 27, 1944, No. 14390. [Class 61(ii)] The movable jaw 14 of a clamp is mounted on the springy leg extensions 11 of a split block 10 slidable on the vertical post 4 and 'the operating lever 8 is mounted on the legs 11 by means of an oval hole so as to close the legs and clamp the block 10 on the post 4 at the same time as the cam surface 9 on the lever clamps the jaw 14 down on the work 15.
Patent GB-611944-A (GB)
Title: Improvements in or relating to apparatus for radio frequency heating
IPC: C07D233/80
Filed: 1946-05-13
Abstract: 611,944. Dielectric heating. JACKSON, D., and PYE, Ltd. May 13, 1946. No. 14464. [Class 39 (iii)] [Also in Group XL (b)] An applicator for applying a radio frequency field to material to be heated, comprises a tuning arangement whereby the impedance of the load may be matched to the H.F. generator. A coil 1 of zig-zag form metal strip, is wound and moulded integrally with an insulating former 2, so that the turns are concentric and of zero pitch. A cup-shaped member 3 is rotatably mounted at the upper end of the coil former and supports an outer casing 6. A brush 10, mounted in the wall of the casing 6, makes rubbing contact with the turns of the coil and conveys 'power thereto from the H.F. source, the casing acting as the earthed electrode. Interchangeable electrodes 5 are fitted to the lower end of the coil which together with the tapering lower end 11 of the casing 6 concentrate the H.F. field at the end of the applicator. The applicator may be incorporated in a pedestal mounting as shown in Fig. 3.
Patent GB-720968-A (GB)
Title: Improvements in carrier current communication systems
IPC: H04B1/68
Filed: 1953-05-22
Abstract: 720,968. Voice-frequency signalling. STANDARD TELEPHONES & CABLES, Ltd. (Nippon Electric Co., Ltd.). May 22, 1953, No. 14481/53. Class 40 (4). [Also in Group XL (c)] Supervisory signals are transmitted in a double sideband carrier communication system as a single frequency lying within the sideband frequency range, the receiver for said signals responding only if they are unaccompanied by an image frequency with respect to the carrier. The receiver described responds independently to two separate supervisory frequencies spaced equally above and below the carrier frequency provided that at any time only one is transmitted without the other. The carrier frequency amplifiers 1, 2 pass the communication signals to terminal 3. The supervisory signal frequencies are selected by filters 4, 5, rectified at 6, 7, and operate relays 8, 9 respectively. The contacts 13, 14 of these relays are connected so that if one frequency alone is received, battery 12 is connected to final relay 10 or 11 as the case may be. If both are received the current supply to both final relays is interrupted. The number of supervisory signals may be extended by providing further pairs of frequencies equally spaced from the carrier and additional circuits such as 4...14 at the receiver. Relays 8 . . . 11 may be slow to operate to avoid false operation or delay circuits may be associated therewith.