baber/WOPTO huggingface dataset:
Patent GB-892669-A (GB)
Title: Improvements in and relating to internal combustion engine cylinder heads
Inventor: WILLIAMSON ALEXANDER
IPC: F02F1/24
Filed: 1959-07-20
Abstract: 892,669. Cylinders. VAUXHALL MOTORS Ltd. July 20, 1960 [July 20, 1959], No. 24820/59. Class 7(2). A mixture inlet valve seat 4 is connected to a cylinder-head combustion chamber 2 by a frusto-conical passage 9, there being an exhaust valve seat 6.
Patent GB-391016-A (GB)
Title: Improvements in or relating to stencil sheets
IPC: B41N1/24
Filed: 1932-09-06
Abstract: A stencil-sheet coating-composition comprises a waxy substance produced by esterifying bleached montan wax with polyhydric alcohols such as ethylene glycol or glycerine.  The esterification may be effected in the presence of water or high-boiling solvents such as naphthalene, and the action may be accelerated by adding anhydrous zinc chloride or hydrochloric acid.
Patent GB-599528-A (GB)
Title: Improvements in or relating to dielectric heating apparatus for the high frequency heating of dielectric material
IPC: H05B6/62
Filed: 1945-09-26
Abstract: 599,528. Dielectric heating. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 26, 1945, No. 24964. Convention date, Sept. 28, 1944. [Class 39 (iii)] In order to obtain uniform heating of material, e.g. plywood, between the electrodes 4, 6, 8, separate valve generators 30, 32 are provided at each end of the heating electrodes, and are connected by extensions thereof 24, 26, 28, forming tuned transmission lines of adjustable length. A timing circuit comprising a battery 88, solenoid switches 86, 96 and a rotating commutator 80, with a conducting segment slightly greater than 180 degrees, operates each valve generator in turn and short-circuits the opposite ends of the transmission line by means of mechanical switches associated with the solenoids. The valve generators are controlled by the switches 54 in the grid-cathode circuit so that when switch 54 is open a high negative bias is applied from the battery 64 to prevent the valve oscillating. The electrical length of each half of the transmission line, and of the heating electrodes is preferably a quarter of the wave length at the frequency employed, so that with one end of the transmission line short circuited and the other end receiving power standing wave voltage patterns will be present along the power transmitting and power consuming system as represented by curve A of Fig. 3 when generator 32 is supplying power and by curve B when generator 30 to supplying power. An alternative arrangement employing a single valve generator connected to each end of the transmission line in turn is also described.
Patent GB-814394-A (GB)
Title: Improvements in and relating to thermistor assemblies
IPC: H01C7/04
Filed: 1955-08-31
Abstract: 814,394. Thermistor assemblies. GENERAL ELECTRIC CO. Aug. 31, 1955 [Aug. 31, 1954], No. 24995/55. Class 37. The heater wires of a thermistor are led through a pair of heat-conducting tubes 1 as of quartz between and in contact with which is a thermistor element 3. The plane containing the thermistor leads 4, each of which is glued at one end to a tube 1, is at right-angles to that containing the heater wires. The tubes 1 are mounted in supports 5 on a heat-conductive plate 6. To ensure very rapid response the dimensions of the device are kept small, e.g. the outer diameter of the quartz tubes may be 0.0023 inch and the smaller diameter of the thermistor bead, 0.003 inch.
Patent GB-370320-A (GB)
Title: Improvements in and relating to rotary slide valves
IPC: F16K5/04
Filed: 1931-09-07
Abstract: 370,320. Rotary slide valves. MASCHINENFABRIK AUGSBURG NœRNBERG AKT.-GES., Nuremberg, Germany. Sept. 7, 1931, No. 25049. Convention date, Sept. 22, 1930. [Class 135.] A rotary slide valve a, with a housing and an inlet branch b, has a labyrinth packing of fixed lamillµ h running in a longitudinal direction and completely filling the gap space between the known labyrinth end packings f, f<1>. The lamillµ h extend over and beyond the wall port c, abut with their ends on to the end packings f, f<1>, and reach with their free longitudinal edges to the wall of the valve housing. The lamillµ h, formed preferably of steel strips set in the valve member a, are closer together in the vicinity of the port c as shown in Fig. 2. This arrangement, by allowing for successive expansions between both sets of lamillµ substantially reduces the loss of pressure fluid by leakage in the longitudinal direction. In a modification, the longitudinal packing lamillµ hare attached to the housing and not to the valve a.
Patent GB-1029794-A (GB)
Title: Improvements in or relating to air conditioning units
IPC: F04D27/02
Filed: 1963-06-24
Abstract: 1,029,794. Air conditioning units. RIELLO CONDIZIONATORI S.p.A. DI GIORDANO RIELLO & CO. June 24, 1963 [June 28, 1962], No. 25103/63. Heading F4V. [Also in Division F1] In an air-conditioning unit divided by a partition 1 into two chambers A and B one communicating with a room and the other with the outside atmosphere, there is mounted on either side of the partition a centrifugal fan having a scroll casing 2, 3 provided with a damper controlled branch duct 13, 13<SP>1</SP> communicating with the chamber on the other side of the partition. The branch ducts are controlled by pivoted spring-loaded flaps, Fig. 2 (not shown), having linings 8 of packing material and operated by flexible cables 12. A single electric motor (not shown) drives the two coaxial fans. When it is desired to transfer air from the chamber B to the chamber A the duct 13 is opened and 13<SP>1</SP> closed, the transfer of air being aided by the suction of the fan in chamber A. Similarly, duct 13 is closed and 13<SP>1</SP> opened to transfer air from chamber A to chamber B. Chamber B communicates with a room and houses the evaporator of a refrigeration system and chamber A contains the condenser and compressor of the system.
Patent GB-374714-A (GB)
Title: Apparatus for conveying goods in bales, sacks or the like
IPC: B65G69/16
Filed: 1931-09-07
Abstract: 374,714. Endless chain conveyers. EVANS, W. E., 27, Chancery Lane, London. -(Ges. fiir F÷rderanlagen E. Heckel; 3, Saarbr³cken, Germany). Sept. 7, 1931, No. 25134. [Class 78 (i).] Bales, sacks, &c.are lowered by a travelling endless conveyer b, and during lowering are kept in contact with a stationary surface a by springs g. The conveyer may consist of chains c connected by cross-bars d, and may discharge on to a rocking shoot h which delivers the sacks f &c. to opposite sides alternately. The upper drum i of the conveyer may be coupled to one of the drums of the feeding conveyer k to assist in driving it.
Patent GB-462363-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J61/54
Filed: 1935-09-10
Abstract: 462,363. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 10, 1935, No. 25160. Convention date, Sept. 11, 1934. [Class 39 (i)] To start a gas- or vapour-filled positive-column discharge device, a local discharge is produced between an electrode and a heating element therefor or a terminal of the heating element, and the local ionizing potential is subsequently reduced. A lamp 10, Fig. 1, is provided with electrodes 11, each of which comprises a nickel tube coated with barium oxide and fitted with lava plugs which support a tungsten heater. One heater terminal is connected to the electrode through a nickel strip 18 and the other heater lead 13 is exposed, at least over a part of its surface to form the anode of a local discharge to the electrode 11. The leads 13 are connected to tappings on the transformer 21, the voltage across the secondary winding of which is reduced when the main discharge is ignited. The voltage across each electrode heater is similarly reduced to reduce or extinguish the local discharge. The voltages across the heaters may be different and only one local discharge may be produced. In another form, the heaters are connected in series by an external or an internal axial wire and the voltage across the heaters and between the main electrodes is reduced on starting by the connection in series therewith of a resistance or impedance. The major portion of the internal molybdenum wire may be housed within a glass or alumina tube and to facilitate starting it may be fitted with tungsten or molybdenum cross-wires which form auxiliary anodes. In a further form, the voltage across each heater is adjusted by the insertion of a resistance 30, Fig. 7, in the connecting wire 13b. The heaters and the resistance 30 are relieved from strain by wires 31 fused into glass or alumina beads 32. The resistance 30 may extend wholly or partly between the main electrodes, may be incandescent, and facilitates the vaporization of a sodium filling ; it may be coated with barium oxide to facilitate ignition or may be housed within an insulating tube. The main electrodes each consist of a nickel hollow cylinder coated internally with barium oxide and closed at one end by a lava plug. In a further form, an envelope 10f, Fig. 8, is provided with nipples 36 to which are fused hollow terminal posts 37. The electrode conducting supports 40, 41 are secured internally to the posts and support the electrodes through nickel strips 42. The support 41 is housed within a glass or alumina tube 43 into which are fused wires 44 adapted to support the filament 30f. Vapour is excluded from the nipples 36 by insulating discs 48 sealed to the wires 40, 41 and the tube 43. The nipples are exhausted by tubes 49 which are sealed during operation by the condensation of vapour. The electrode heaters 17f are closely wound to obtain a voltage drop sufficient to start the local discharge, and the tube is connected in series with a ballast resistance 24, and may be secured within an evacuated jacket through an asbestos gasket.
Patent GB-732630-A (GB)
Title: Improvements in or relating to negative feedback amplifiers
IPC: H03F1/36
Filed: 1953-09-11
Abstract: 732,630. Valve amplifying circuits. WESTERN ELECTRIC CO., Inc. Sept. 11, 1953 [Sept. 26, 1952], No. 25179/53. Class 40 (6). In a negative feed-back amplifier comprising a preliminary stage U1, Fig. 1, of low distortion and an output stage U2 in which distortion occurs, B being the feed-back path, the effect of the feed-back is to cause the signal at the point 12 between the stages U1, U2 to contain distortion components in opposite relative phase to those produced by the output stage U2. According to the invention, signals from the point 12 are applied to a branch amplifier U3 whose output is combined with that of the main amplifier U2 in such amplitude and sense as to cancel the residual distortion in the output. In one embodiment, Fig. 4, a preliminary stage 20 having a load 27, 28, 29 feeds a final stage 21 from which negative feed-back is derived over condenser 23 and cathode resistor 24. The valve 20 also drives a branch amplifier 22 which is outside the feed-back loop and whose output is combined with that of the stage 21 in the output transformer 26. In another embodiment, Fig. 5 (not shown), the cathodes of the preliminary and branch amplifier valves are earthed and feed-back is obtained by back-coupling the cathode of the output valve to one end of the input transformer.
Patent GB-647161-A (GB)
Title: Method and apparatus for folding a paper web into z-form
IPC: B65H45/20
Filed: 1947-09-15
Abstract: 647,161. Folding paper; delivery apparatus. BURGESS, A. F. (International Cellucotton Products Co.). Sept. 15, 1947, No. 25191. [Class 100 (i)] A method of folding a paper web into Z-form by apparatus having feed-rolls for feeding the web to folding-rolls having gripping jaws cooperating with tucker blades includes the steps of providing slack in the web which is between the feed-rolls and the zone in which the jaws and the tucker blades co-operate, tucking the web between the gripping jaws utilizing said slack to form the tuck, and withdrawing the tucker from between the jaws. Two webs 8 and 9 are fed by two pairs of feed-rollers 15 and 16, and 17 and 18, over cutter-rolls 7 and 5 which co-operate with rotary transverse cutters 6 and 4 which partially sever the two webs at points displaced relatively along the surface of the two webs. The web is then fed between a pair of folding-rolls 27 and 28, driven in opposite directions. Each roll carries three pairs of cam-operated grippers and three tucker blades spaced intermediately between the grippers such that the tucker blades 35 on the roll 27 co-operate with the grippers 36 and 37 on the roll 28; similarly the tucker blades 38 on the roll 28 co-operate with the grippers 33 and 34 on the roll 27. The webs are formed into a tuck in the open gripper jaws which extend the entire length of the roll, the tuck being formed from slack in the web drawn from above and below the zone of co-operation of the grippers and tucker blades. The slack may be caused by feeding the webs to the rolls 27 and 28 at a higher speed than the speed of the grippers. Further rotation of the rolls 27 and 28 causes the tucker blades to be withdrawn from the grippers while the grippers close on the webs to form the fold. The 'grippers may be formed of rubber or be tipped with a friction-resisting material so as to prevent the web being withdrawn from the open grippers while the tucker blades are withdrawn. The grippers are again re-opened when the fold is approximately above the edge of a stack on which the folded material is deposited, strippers 88 and 89 being provided to strip the folded edges from the jaws. The top of the stack is retained against upward displacement by hooks 99 and 100 carried by oscillating shafts 101 and 102. The stack is supported by guide posts 59 and 60, plates 69 and 70, and an inclined wall 71 positioned above a conveyer belt 72 which moves the folded sheets downwardly at a rate equal to their delivery on the pile. The belt is driven from a shaft 74 which is rotated through a ratchet by an oscillating arm 87. Should the height of the pile increase above a certain level a feeler 111 on top of the pile actuates a switch 115 to start a motor 121 which drives a worm 128 which drives the shaft 74 through a ratchet clutch at a higher rate than normal.
Patent GB-1006572-A (GB)
Title: Automatic doffing apparatus for a spinning or twisting frame
IPC: D01H1/36
Filed: 1962-07-02
Abstract: 1,006,572. Spring &c. machines. E. NEGISHI. July 2,1962 [July 31, 1961], No. 25252/62. Heading D1D. Apparatus for operating yarn guides, such as rings and travellers, during doffing in a spinning or like machine includes a rotatable wheel to which a rocker arm may be coupled for movement with the wheel during a part of its rotation, a flexible member being entrained over a portion of the rocker arm to transmit motion from it to the yarn guides. When the rocker arm is disengaged from the wheel and falls back to a rest position the flexible member slackens and the yarn guides descend in preparation for doffing. The wheel A and rocker arm B are mounted on a common shaft 48 and may be coupled by the entry into a recess 52 of the wheel A of a rod G carried by the arm B. When, upon initiation of the doffing operation and in consequence of a signal from (a) an element that moves with the yarn guides, (b) a counter actuated by the front rollers, or (c) a time device, the wheel A is driven by motor 1 through gearing 9, 10, 11 and worm 14, the arm B is carried round by the wheel A until a bell crank lever carried by the arm strikes an abutment 46 and releases the rod G from the wheel, thus allowing the arm B to drop until a projection 49 abuts against a stop 51 whereupon lifting chain E slackens to allow the ring rail D to fall under its own weight but at a rate controlled by a dash pot 67. As the wheel A continues to rotate, the second recess 52 passes beneath the rod G and arm B and wheel A are again coupled together to raise the ring rail. Upon the ring rail again reaching its highest position, the rod G is again disengaged and the rail descends a second time, to be followed by a further raising of the ring rail as rod G again engages a recess. Meanwhile, upon one complete revolution of wheel A a switch controlled by the wheel is operated to reverse the motor 1, whereupon a pawl 12 transmitting drive to wheel A begins to ride idly over its ratchet wheel and a pawl 4 engages ratchet wheel 6 so as to rotate the main drive shaft 5. Cop building is effected by a cam operated bracket 32, Fig. 6, that carries a drum 33 to which an end of lifting chain E is attached. The drum 33 is normally clutched to ratchet and pawl mechanism 39 but is disconnected upon energization of an electromagnet 94 when a switch is tripped by a projection carried by the wheel A.
Patent GB-1253710-A (GB)
Title: Preparation of thiadiazole derivatives
Inventor: WEINSTOCK LEONARD MAURICE
IPC: C07D285/10
Filed: 1969-05-19
Abstract: 1,253,710. Thiadiazole derivatives preparation. CHARLES E. FROSST & CO. 19 May, 1969 [21 April, 1969], No. 25334/69. Addition to 1,253,709. Heading C2C. 3 - X - 4 - [3 - (Y - amino) - 2 - hydroxypropoxy]-1,2,5-thiadiazoles and salts thereof (X=Cl, C 1-3  alkyl or alkoxy, Ph, PhCH 2 , morpholino, piperidyl, hydroxypiperidyl, N-alkylpiperazinyl; Y=C 1-5  alkyl or hydroxyalkyl) are prepared by reducing the corresponding ketone with sodium borohydride or an aluminium alkoxide or by incubation with a reductase selected from Clostridium butylicum, C. lentoputrescens, Escherichia coli, E. freundii, Aerobacter aerogenes, Mycobacterium lacticola, Bacillus megaterium, Corynebacterium simplex, Salmonella paratyphi, Leuconostoc mesenteroides, Acetobacter ascendens, Lactobacillus delbrueckii, Streptomyces lavendulµ, S. coelicolor, Saccharomyces cerivisiµ, Geotrichum candidum, Curvularia falcata and C. lunata, optionally followed by salt formation. Use of a reductase affords the sinister isomer. The starting materials are prepared by the following route: (R<SP>5</SP>=alkyl, Ph, substituted Ph), and the 4- kydroxy - 1,2,5 - thiadiazoles are prepared from 3,4-dichloro-1,2,5-thiadiazole via the 3-X-4- chloro-1,2,5-thiadiazole.
Patent GB-1351574-A (GB)
Title: Data processing system
IPC: H04L9/32
Filed: 1972-05-31
Abstract: 1351574 Digital transmission; ciphering INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25359/72 Heading H4P In a data transmission system having a central station employing ciphered communication with a plurality of remote terminal stations, the central station has a list of unique terminal ciphers which are identified by a pass word which is preferably continually changing. The cipher is developed by dividing blocks of data into segments and generating a ciphered block under the control of a key. Terminals may be time shared. The pass word may be derived from station clocks hence will be continuously changing and should be synchronous between central and terminal stations. Initial communication from a terminal A, e.g. a teleprinter may be by an address central station after which verification of pass word is made. After enciphering the block cipher may be encoded by an error correcting device which may employ any known error correcting code. To initiate communication a subscriber selects at a terminal a unique code group I to which a plurality of pass word digits X, which may be derived from a clock or random number generator are added. Groups I, X are then ciphered and transmitted to the central processing unit CPU. If the deciphered groups I<SP>1</SP>, X<SP>1</SP> are intelligible to the CPU indicating a proper transmission, X<SP>1</SP> is now combined with a new group Y derived from CPU storage, ciphered and transmitted back to terminal A and deciphered; X<SP>11</SP> should correspond with the stored group X and if so a gate is opened which enables further communication. Y<SP>1</SP> is combined with the first data block D, ciphered and transmitted. If after deciphering Y<SP>11</SP> corresponds to Y, data block D is routed to the relevant location. This operation may be performed only once or more than once. It is also possible that instead of a portion of a received message as a return check group, to use a continuously changing pass word for each data group. Part of each transmitted group may include a continuously changing pass word for check. The cipher system may be as described in Specification 1,351,573.
Patent GB-742871-A (GB)
Title: Improvements in circular knitting machines of the superimposed needle cylinder type
Inventor: DEANS FREDERICK EDWARD
IPC: D04B9/10
Filed: 1952-10-10
Abstract: 742,871. Knitting-machines. BENTLEY ENGINEERING CO., Ltd. Oct. 6, 1953 [Oct. 10, 1952], No. 25387/52. Class 74 (2). The cam-box 3 for the upper extended cylinder of a superposed cylinder machine is supported from the top plate 12 as is the upper cylinder itself. Although the box 3 may be supported by a sleeve suitably apertured to permit patterning mechanism 9 to operate the instruments in the extended portion of the cylinder so that they actuate the normal sliders, in the preferred construction three bars 16 extend down from the plate 12 and are secured to the cam-box. These bars are attached by universal joints to the plate 12 and are pivotally attached to the cam-box, additional bars 23, 24, 25 being provided to prevent rotary displacement of the cam-box and to provide axial alignment of the cam-box and upper cylinder with the lower cylinder. Eccentric rings on the supporting rods 13, 15 allow adjustment of the bars 23, 24, 25 for aligning the cylinders. The upper cam-box is formed in three sections keyed together. Cam mechanism operated by ratchet mechanism is provided for operating cams in the cam-box.
Patent GB-198608-A (GB)
Title: Improved portable electric lamp
IPC: F21L4/00
Filed: 1922-09-20
Abstract: 198,608. Pexton, L., and White, G. L. Sept. 20, 1922. Battery lamps.-An electric battery lamp comprises a switch member which is adapted to project from the base portion of the lamp and close the lamp circuit when the lamp is not resting upon a supporting-surface, the switch being automatically opened when the lamp is placed upon a supporting-surface. The switch may comprise a weight r, which, in the dotted position shown, completes the lamp circuit through the contact o. A spring-pressed switch may take the place, of the tumbler switch r. A hand-operated switch h may be provided by which the lamp circuit may be completed independently of the switch r. The base is formed with a recess on its underside in which the battery is accommodated, a cover being provided hinged or secured by a pin.
Patent GB-982407-A (GB)
Title: Improvements in and relating to percussion caps
IPC: F42C19/10
Filed: 1961-07-13
Abstract: 982,407. Ammunition primers. DYNAMIT NOBEL A.G. July 13, 1961 [July 14, 1960], No. 25463/61. Heading F3A. A percussion cap comprises a metallic body 1 having a recess containing a primer composition 3, the body having an internal rim 5 whose surface acts as a detonating anvil. In the embodiment shown in Fig. 1, the annular rim 5 is about 0À3 mm. wide and has a foil closure 4 above it which is lacquered to provide protection from damp. In a second embodiment, the lower end of the primer recess 3 (Fig. 1) is closed so that igniting flame issues from the top of the cap adjacent the firing pin. A third embodiment shows the embodiment in Fig. 1 used to initiate a delay fuze.