baber/WOPTO huggingface dataset:
Patent GB-845512-A (GB)
Title: System of supplying current to electric motor driving arrangements
IPC: H02P5/68
Filed: 1956-02-29
Abstract: 845,512. Control of several D.C. motors. RESEARCH INTEREST Ltd. (Montrose- Oster, L. E. W.). Feb. 26, 1957 [Feb.29, 1956], No. 6339/56. Addition to 723,678. Class 38 (3). Dynamo-electric machines M(I), M(II) are capable of operating both as motors and generators, and are mechanically coupled to the input shafts of a differential gear. The machines rotate in opposite directions and, when rotating at the same speed, the output member of the gear is stationary, the output member developing a high torque by increasing the speed of one machine and simultaneously braking the other. The machines are connected to a system comprising three generators, the generator DC having a constant voltage, and the generators DA, DB having voltages which are variable between maximum positive and negative values. Under idling conditions, the generators DA, DB are not excited, and the generator DC supplies equal currents to the two machines which turn at equal speeds in opposite directions. If the machine M (I) is to develop maximum torque to drive the cage of the differential in one direction, the voltages of the generators DA, DB are increased so that the voltages of generators DA, DC are added together to increase the terminal voltage of the machine M (I). At the same time, the voltage of generator DB is deducted from that of generator DC, so reducing the terminal voltage of the machine M (II). This causes the machine M (I) to operate as a motor supplied from the generators DA, DB, DC, as well as from the machine M (II) which now acts as a generator. To reverse the direction of rotation of the output member of the differential, the excitation of the generators DA, DB is reversed. The generators DA, DB may be replaced by a single generator having two separate armature windings, or a single winding associated with a voltage divider. The generators DA, DB, DC may be driven in common by a constant-speed motor, or the generator DC may be replaced by other sources of constant voltage. The field windings of the generators DA, DB may be supplied from the generator DC through current regulating and reversing means, the said means associated with the respective generators being coupled for simultaneous operation.
Patent GB-144778-A (GB)
Title: Improvements in or relating to electrical cut-outs
IPC: H01H35/34
Filed: 1919-03-13
Abstract: 144,778. Frost & Co., H., and Welch, W. H. March 13, 1919. Thermostats.-An electric cut-out comprising a resilient contact-arm A adapted to be moved away from a fixed contact B can be made repetitive or not at will by means of a bolt D which is slidably mounted in the walls of the casing C and can be made to bear at its inner end, under the control of a spring D', against the free end of the contact-arm A. When the arm A is moved away from the contact B, the bolt D slides under the end of the contact arm in order to prevent the circuit from closing again. The bolt carries a pin D' adapted to move in a slot in a boss C'. When it is desired to make the cut-out repetitive, the bolt is withdrawn and given a partial turn by means of a knob D<3> so that the pin D' lies across the face of the boss C'. The cut out is actuated by a pressure-operated diaphragm as described in Specification 144,777, and is particularly applicable for use with electrically-heated portable vulcanizers for tyre repairs, either for preventing the temperature from rising above a predetermined limit when the apparatus is in continual use, or for cutting out the heating means permanently and allowing the parts to cool down as soon as the temperature reaches the predetermined limit.
Patent GB-475318-A (GB)
Title: Improvements in or relating to flower-pots
IPC: A01G27/04
Filed: 1937-03-03
Abstract: 475,318. Treatment of, and pots for, growing plants. HAGLUND, G. March 3, 1937, No. 6354. [Class 6 (ii)] A glazed or unglazed flower - pot 1 is provided with a loose bottom 6b of porous earthenware resting on a shoulder 2 at some distance from the base of the pot, the bottom being provided with an integral annular r flange 10 extending downwardly into water in a saucer 13 or the like in which the pot is placed and forming a capillary member for supplying the water to the soil in the pot. Openings 5 at the bottom of the walls of the pot allow of equalization of the level of the water inside and outside of the walls, and passages 4 at a higher level allow air to pass through corresponding passages in the flange 10 to the space 15 above the water level.
Patent GB-566038-A (GB)
Title: Improvements in or relating to windows
IPC: E06B3/44
Filed: 1943-04-21
Abstract: 566,038. Windows. PERFECTAMOTOR EQUIPMENTS, Ltd., and BOSTOCK, C. W. April 21, 1943, No. 6440. [Class 20 (iii)] The stationary frame of a sliding double-sash window is formed of steel side members 10, top 11 and bottom 12 welded together, with channel members 15, 16 of extruded light alloy screwed to the side members with or without intervening plastic material 18, an extruded section 19 with a recess 20 and an interlocking flat section 23 secured to the top member and a light alloy section 24 forming the visible sill positioned over the bottom 12. The sashes are made from four pieces of extruded light alloy section, preferably hollow, and the top member of the upper sash is formed with an upstanding sealing rib 21 taking into the recess 20. The meeting edges of the sashes are formed with interengaging parts 39, 40 and sealing strips, such as described in Specification 566,039, are secured to the rib 21, in the part 39 and in a recess 35 in the bottom member of the lower sash. After the putty has been inserted, the sashes are completed by three sealing strips 43 secured within the sides and tops of both sashes. The lower sash is provided with an integral lifting handle 37. The sashes are balanced by spring- loaded drums housed in the masonry above the top frame member 11.
Patent GB-379991-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H05B41/22
Filed: 1932-03-03
Abstract: 379,991. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. f³r Elektrische Gluhlampen ; 11, Ehrenbergstrasse, Berlin.) March 3, 1932, No. 6474. Convention date, April 15, 1931. [Class 39 (i).] Auxiliary starting electrodes 9, 10 in the interior of the tube are connected to the main electrodes 3 through resistances 11, 12 and extend into the neighbourhood of the opposing main electrodes. They are supported near and parallel to each other over a great part of their length by glass beads 13 and wires 14. In a modification, Fig. 2, for use on voltages of the order of 300 volts, a conducting member 16, insulated from the other components is arranged to bridge a gap 15 between the members 9, 10. It is stated that with this arrangement, glow discharges start between the members 9, 10 and the member 16, and between the main electrodes 3 and the member 16. For higher voltages the member 16 may consist of a number of insulated conductors. The main electrodes and the members 9, 10 may consist of a sintered mixture of refractory metals and electronemitting materials, or the members 9, 10 may be covered with alkaline-earth oxides. The electrodes 3 may be independently heated.
Patent GB-549953-A (GB)
Title: Improvements in and relating to shock-absorbing devices
IPC: B60R22/28
Filed: 1942-05-13
Abstract: 549,953. Parachutes. GREGORY, J. May 13, 1942. No. 6490. [Class 4] [Also in Group XXXIV] A shock absorber for checking the movement of a body in relation to a suppport comprises a tension link formed from a length of webbing or other flexible material folded back on itself, the juxtaposed parts being sewn together at intervals by transverse lines of stitching, leaving the ends free for connection to the load and its support, shock being absorbed by breaking the stitches as the fold is opened out. A link for insertion in a parachute harness is shown, the parts of the loop having double or treble transverse stitchings g at intervals and crossed diagonal stitchings g<SP>1</SP>. A modification is described having a four fold loop the four thicknesses being simple sewn together or the two inner layers being separately sewn before all four layers are stitched together.
Patent GB-436349-A (GB)
Title: Improvements in concrete building blocks
IPC: E04B2/14
Filed: 1935-03-01
Abstract: 436,349. Building - Mocks; walls. ENSOR, C. A. J., 41, Tapson Street, Cambridge, East London, South Africa. March 1, 1935, No. 6504. [Classes 20 (iv) and 87 (i)] Building-blocks to be laid without mortar in the bed joints are formed with a large tongue 2 on the top face, an exactly corresponding groove 3 on the bottom face, and grouting grooves 5 on the ends. The sides of the tongue 2 and groove 3 slope at 45‹. For external walls the tongue is preferably flat topped as shown in Fig. 3, and two vertical cavities 4 are provided to form cavities extending the full height of the wall. Additional vertical grouting holes may be formed between the cavities 4. Fig. 4 shows a block for internal walls. Corner blocks are shaped as in Fig. 2 and with one cavity 4. The blocks are made of concrete or other material, and the groove 3 in the first course forms an air channel along the wall.
Patent GB-277865-A (GB)
Title: Improvements in steam superheaters for boilers of the locomotive type
IPC: F22G7/06
Filed: 1927-03-09
Abstract: 277,865. Fowler, C. H., and Fowler & Co. (Leeds), Ltd., J. March 9, 1927. Smoke-tube superheaters.-In a locomotive superheater having looped tubes e extending from a saturated steam chest c on one side of the smoke-box a to a superheater steam chest d on the other side, the connections of the superheating tubes and the main inlet and outlet pipes with the steam chests are accessible from outside the smoke-box, and the chests are removable from outside the smoke-box. The steam chests are formed with lateral flanges h which abut against the edges of apertures in the sides of the smoke-box. The bolts j carrying the dogs h securing the superheating tubes to the chests pass through hollow sleeves i cast in the chests and are drawn tight by nuts outside the chests. Some or all of the superheating tubes are so bent or inclined at their ends that their connections with the chests are above or below the centre line of the loops of the tubes. The connections of adjacent tubes with the chests may be in horizontal rows, or the connections may be staggered vertically. The loops of a superheating tube may enter the tubes of adjacent rows of smoke-tubes.
Patent GB-974988-A (GB)
Title: Process for the preparation of alpha, beta-unsaturated phosphonic acid esters
IPC: C07F9/40
Filed: 1963-02-19
Abstract: Alpha, beta-unsaturated phosphonic esters of formula <FORM:0974988/C1/1> where R is alkyl, cycloalkyl or aryl or both Rs together form a divalent organic radical, R1 is an alkyl, substituted or unsubstituted aryl, cycloalkyl or heterocyclic radical, each of R2 and R3 is hydrogen, alkyl, aryl, cycloalkyl or a heterocyclic radical and may be the same or different, or R1 and R2 together form part of an organic ring system, are prepared by reacting a compound <FORM:0974988/C1/2> with thionyl chloride in a non-alkaline medium. An excess, e.g. 3-50% of thionyl chloride may be used. Inert organic solvents may be used and temperatures of 10-90 DEG C. A specified substituted aryl radical is p-chloro-phenyl and a specified heterocyclic radical is thienyl. The invention also comprises the following compounds: diethyl 2-propenyl-phosphonate; diethyl 2-butenylphosphonate; diethyl cyclohexenylphosphonate; diethyl cyclopentenylphosphonate; and diethyl 2-methylpentenyl -4- phosphonate and the cis and trans isomers thereof. Di-n-butyl 2-propenyl-phosphonate is also prepared.
Patent GB-831310-A (GB)
Title: Method of packing liquid or pasty goods in hard foils of artificial thermoplastic material
IPC: A23L3/10
Filed: 1956-03-02
Abstract: 831,310. Packaging. FARBWERKE HOECHST AKTIENGESELLSCHAFT VORM. MEISTER, LUCIUS & BRUNING. March 2, 1956 [March 3, 1955], No. 6713/56. Class 94(1). Liquids or pastes are packaged in films of polyvinyl chloride or like thermoplastic material by shaping the films under pressure of the substance to be packaged during filling, and maintaining the substance at a raised temperature to assist such shaping. The temperature is maintained between 60-80‹C. to produce sterilization and prevent embrittling of the foils. Specification 787,802 is referred to.
Patent GB-476008-A (GB)
Title: Improvement in garment pressing machines
IPC: G05G5/16
Filed: 1937-03-06
Abstract: 476,008. Ironing - presses. UNITED STATES HOFFMAN MACHINERY CORPORATION. March 6, 1937, No. 6715. Convention date, May 11, 1936. [Class 138 (ii)] In an ironing-press wherein an iron or presshead is lowered into contact with a stationary buck by means of a linkage operated by a pedal lever 4 pivoted at its rear to the stationary frame of the machine, there is provided a locking device which is normally biassed to an inoperative position but which may be operated to hold the pedal lever depressed and the press closed. A pendulous bar 30 is pivoted to the stationary frame at a point above the pedal lever and a bearing surface 46 secured to the pedal lever forms converging surfaces with the pendulous bar in the press closing direction. A roller 42 is rotatably mounted in the bifurcated end of a lever 33 pivoted at 34 to the main pedal lever and normally held in an elevated position with respect to the main lever by a spring 47 between the lever 33 and an abutment 48 on the main lever. The upward movement of the lever 33 is limited by the engagement of its cranked end 51 beneath the end of the slot 49 in the main lever in which the lever 33 moves. The roller 42 thus normally rests lightly between the conveying surfaces, but when the lever 33 is depressed by the operator relatively to the main lever, the roller 42 is forced into wedging engagement with these surfaces and holds the press closed. The rear face of the pendulous bar is engaged by a backing-up roller 37. The press is unlocked by a slight further depression of the pedal lever 4 which lowers the bearing surface 46 sufficiently to release the roller 42.
Patent GB-364921-A (GB)
Title: Improvements in apparatus for homogenizing liquids
IPC: A01J11/16
Filed: 1931-03-04
Abstract: <PICT:0364921/III/1> Apparatus for homogenizing milk, cream, and other liquids comprises a pair of plates b, c bolted together and clamping between them a resilient or flexible diaphragm a, of copper, brass, steel or fibre.  The plate c is provided on its inner side with radial grooves, some of which communicate with passages c<1> in the plate c, the remainder, g, arranged alternately, but not in communication, with the first, leading into an annular groove g<1> in the plate, which in turn communicates by vertical passages (not shown) with a chamber h.  The diaphragm a is held against the grooves by gas under pressure applied through a pipe d communicating with an aperture b<1> in the plate b. In use liquid is forced under pressure through a passage c<2>, leading to the passages c<1>, and is homogenized while passing between the plate c and the diaphragm a from the inlet to the outlet grooves.  The homogenized liquid is led off through a pipe h<1> on the upper wall of the chamber h. Homogenization is stated to be assisted by the action of the edges of the grooves and this effect may be enhanced by the provision on the diaphragm of projections, of the same material as the diaphragm, adapted to obturate the passages c<1> or the grooves in the plate c. The passages c<1> may be increased in number and the grooves dispensed with or differently arranged, for example concentrically, alternate grooves being connected to the inlet and outlet passages respectively.  The gas-pressure applied at d may be that of a commercial bottle of liquefied carbon dioxide, of compressed air, nitrogen or other permanent gas, or of air contained in a bottle into which water is pumped by the pump employed subsequently to force the liquid to be treated through the apparatus.
Patent GB-838303-A (GB)
Title: Improvements in or relating to binary counting devices
Inventor: MCCONNELL ERIC DOUGLAS
IPC: H03K23/76
Filed: 1957-02-28
Abstract: 838,303. Circuits employing bi-stable magnetic elements. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 26, 1957 [Feb. 28, 1957], No. 6743/57. Class 40 (9). Two cores A, B of a binary counter are linked by a circuit including an open-circuited delay line L, Fig. 2, or by an equivalent network of lumped impedances KK &c., Figs. 3, 4, 5. The delay allows a pulse on terminals IP to die away before a resulting pulse from A becomes effective at B. When a delay line is used, as in Fig. 2, the pulse transmitted from A to B is followed by a number of pulses of decreasing intensity derived from reflections in the line L.
Patent GB-654145-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J19/42
Filed: 1947-03-11
Abstract: 654,145. Electron discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. March 11, 1947, No. 6769. Convention date, March 11, 1946. [Class 39 (i)] A rectifier has a cylindrical anode 19 and a co-axial filament 27 extending between support leads 31, 32 attached to either end, disc members 39 being mounted at either or both ends on the support leads, with corresponding projecting parts on the anode, so that in the event of a flash-back, the reverse discharge from the anode is received by said discs, thus avoiding damage to the emission element. The lead 32 forms several loops 38 round the filament which act as a shield against mechanical disruption by electrostatic fields. The molybdenum anode has end pieces 26 of gettering material such as tantalum, columbium or zirconium which are curled round the anode edges to form a projecting bead. The anode is mounted in the arms 21 of a bracket 20 fixed to a rod 23 passing through an end seal of the envelope. At the other end, the filament leads pass through insulated grommets 33 in the head 28 of a skirt 30, and out through a similar end seal to leads 36. In a modification, Fig. 3 (not shown), the anode has an inner annular rib or ring registering with discs(s) 39, all these members being of molybdenum or tungsten. The invention is applicable to other devices such as X-ray tubes.
Patent GB-1361928-A (GB)
Title: Electrical connector and method of making same
IPC: H01R11/11
Filed: 1972-02-14
Abstract: 1361928 Terminals C B HAEGERT 14 Feb 1972 6782/72 Heading H2E [Also in Divisions B3 and C7] The body of an electrical connector is made by die-casting under pressure a molten zinc base alloy comprising: Al 3À5 to 4À5%; Mg 0À02 to 0À6%; Fe 0 to 0À1%; Pb 0 to 0À007%; Cd 0 to 0À005%; Sn 0 to 0À005%; Cu 0 to 3À5%; the balance being Zn. The moulded body is quenched, and then cleaned in a bath of trichloroethylene and carbon tetrachloride; this treatment is said to improve the resistance of the connector to corrosion by H 2 SO 4 . The connectors disclosed are the same as those described in Specification 1,241,383.
Patent GB-1133960-A (GB)
Title: Improvements in or relating to impact fuzes
IPC: F42C15/22
Filed: 1966-02-16
Abstract: 1,133,960. Projectile fuzes. RHEINMETALL G.m.b.H. 16 Feb., 1966 [26 Feb., 1965], No. 6785/66. Heading F3A. A fuze for a spinning projectile comprises a body 1 housing a rotor 9 mounted for movement between a transport position and an ignition position under centrifugal force, an . axially movable striker 4a engaging the rotor and locking it against movement from the transport position until the striker is withdrawn from engagement, and, in operative engagement with the rotor in the transport position a bore safety locking device 15 which holds the rotor in the transport position for a predetermined period after disengagement of the striker and the rotor, and then releases the rotor for movement to the ignition position. The locking device 15 may comprise a coiled band which engages flats on the rotor and expands radially outwardly under centrifugal force to release the rotor. The striker is withdrawn from engagement with the rotor by balls 5 which climb up a tapered surface under centrifugal force. When the fuze strikes a target the striker is forced against a percussion cap 12. In the event of a miss, a spring 6 overcomes the centrifugal force acting on the balls 5 as the speed of rotation decreases and drives the striker against the percussion cap to cause self-destruction. .
Patent GB-858912-A (GB)
Title: Method and means for stacking casks
IPC: A47B81/00
Filed: 1958-03-04
Abstract: 858,912. Cask stands ; stacking casks. BRYDON, N. E. M. Feb. 20, 1959 [March 4, 1958], No. 6837/58. Classes 21 and 94(1). Two end frames 2, 3, Fig. 9, adapted to extend circumferentially around a cask A are interconnected by bracing members 4 and 5. The resulting box-like structure is stackable as in Fig. 11, rigidity being ensured by cooperating dowel pins 20 and holes 21 or by locating shoes on each upper frame resting on bearer plates on each lower frame. To enclose a cask in the box-like structure the cask is first raised clear of the eventual supports B, Fig. 7, by means C, and the frames are then displaced as indicated in broken lines and manouvered as shown in full lines over the cask, the link 5 being temporarily disengaged from the frame 3 if necessary. When the cask is encased by the frame unit, the cask is lowered by the means C until the locating shoes 14 engage the supports B.
Patent GB-416353-A (GB)
Title: Improvements in hard alloys and method of making same
IPC: C22C29/06
Filed: 1933-03-07
Abstract: Tantalum carbide is made by heating a mixture of finely divided tantalum and carbon in hydrogen or in a vacuum to about 2000 DEG C.ALSO:Alloys of tantalum carbide, nickel, and either tungsten or molybdenum, particularly for tools, are made by heating a mixture of the finely-divided constituents in an inert atmosphere such as a vacuum at not over 1400 DEG  C., preferably about 1380 DEG  C.  The tantalum carbide may be made by heating a mixture of finely divided tantalum and carbon in hydrogen or in a vacuum to about 2000 DEG  C., and the nickel is preferably added by grinding the other constituents by means of nickel grinders in the presence of a hydrocarbon such as naphtha.  After heating the mixture to about 1100 DEG  C., the temperature may be slowly raised to about 1380 DEG  C. The alloy preferably contains 75-90 per cent of tantalum carbide, for example 80 per cent of tantalum carbide, 11 per cent of nickel, and 9 per cent of tungsten or molybdenum.