baber/WOPTO huggingface dataset:
Patent GB-123623-A (GB)
Title: Improvements in and relating to Carburetters.
Inventor: LITTLE CHARLES CHASE
IPC: F02M1/00
Filed: 1918-03-23
Abstract: 123,623. Little, C. C. March 23, 1918. Spray carburettors.-In carburettors of the multiple-jet type, the fuel nozzles discharge into adjustable parts of Venturi tubes or like constricted air-supply members, the tubes being opened and closed to the engine in succession by a single rotatable throttle valve adapted partly to open or close each tube before entirely opening or closing the preceding tube. Some of the tubes may be unprovided with fuel nozzles. The throttle valve and air-supply adjuster may be combined in such a manner as to dispense with the intervening tubes. Fuel passes from the float chamber 2 to nozzles 11 in tubes 3 divided by partitions 8, the diameters of the tubes being simultaneously adjustable by a lever 17 on a pin 16 carrying plates 15 hinged to plates 19 sliding in a chamber 2f. The plates 15 may be replaced by sliding blocks, or the whole adjusting-means may be replaced by a rotating valve. Water nozzles may be provided in each tube. A deflector 26 on each tube passes the mixture to a throttle valve 23, Figs. 1 and 4, provided with ports 25 - - 25<e> so arranged as to open in succession each tube to the engine passage 27 before the preceding tube has been entirely opened. The sizes of the tubes 3 are arranged to provide a rich mixture at starting with the port 25 open and a weaker mixture as the engine speeds up. A sector-like throttle valve on an axis at right-angles to that 24 of the valve 23 may be used. The second and other tubes may be unprovided with fuel nozzles and serve as secondary-air tubes. As shown in Fig. 15, the valve 23 may be arranged close to the nozzles 11, the air passage being regulated by a spring plate 41, moved with its heel 44 always in contact with the valve 23 by a crankpin 48.
Patent GB-252325-A (GB)
Title: Improvements relating to the tuning of electric circuits containing relays or other electro-responsive movable devices
IPC: H03H9/48
Filed: 1926-02-23
Abstract: 252,325. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Bossart, P. N.). May 21, 1925, [Convention date]. Electric contact-making relays; alternating- current relays.-A tuned alternating-current relay (for use, for example, in railway signalling) is so designed that, due to the vibratory motion of its armature, it has a negative or condensive reactance which varies directly with the frequency of vibration of the armature over a small range of frequency and this reactance can be utilized to neutralize the inductive reactance of the remainder of the circuit, tuning by condensers being dispensed with. In one arrangement, the armature is tuned to a natural frequency which is lower than that of the normal supply which operates the relay. By these means better reactance neutralization over a frequency band such as is normally met with in a commercial alternating-current supply is obtained, together with an increase of reactance at other frequencies, so that the tuning of the circuit is sharper and, consequently, the liability of the relay to false operation by foreign currents (in a train control system) is lessened. A constructional form of the relay to which the necessary adjustments may be applied is shown in Fig. 1. Magnets 1 are secured together at one end by the strap member 2 which carries the armature 3 moving between the pole-pieces 5 adjustably mounted upon extentions of the second strap member 4. The polepieces carry windings 11 supplied from the coils C inductively energized from the track. Contact points on the armature engage spring contacts 14 secured to the adjustable spring strips 15 mounted on the brackets 12 and adjustable by means of the screws 13. A sliding weight provides for adjustment of the vibration period of the armature.
Patent GB-326958-A (GB)
Title: Improvements in or relating to the production of paper
IPC: D21C9/00
Filed: 1929-02-15
Abstract: 326,958. Jackson, L. Mellersh-, (Mathieson Alkali Works). Feb. 15, 1929. Pulp, preparation of; pulp, catching and recovering.-Chlorine is added to the pulp stock in the beater at a stage near the beginning of the beating operation, and in sufficient quantity to leave in the water of the treated stock a residual chlorine content of ¢ to 1 part per million. The stock is thus sterilized and paper is then formed from the stock before permitting it to become contaminated with objectionable organic growths. The process may be combined with a coagulation treatment of the half stuff as described in Specification 326,956, or with a coagulation treatment of the white water as described in Specification 324,547. Specification 25385/12 also is referred to.
Patent GB-555364-A (GB)
Title: Improved means for automatically lighting and/or extinguishing signal lamps on measuring apparatus
Filed: 1942-04-20
Abstract: 555,364. Electric signalling systems. SIGMA INSTRUMENT CO., Ltd., and BOOSEY, F. R. April 20, 1942, No. 5250. [Class 40 (i)] [Also in Group XIX] In an arrangement of lamps for indicating when a measurement lies within and outside prescribed limits, the OK lamp is permanently in circuit with a series resistance E and the closure of either of two contacts H, J by an arm G controlled by the measuring member connects the + or - lamp in parallel with the OK lamp. The voltage across the two lamps is thus reduced to a value which is insufficient to keep the OK lamp aligh although sufficient to light the + or - lamp. A further resistance F immediately in series with the OK lamp permits the use of lamps which are all of the same voltage. If alternating current is used, the resistances may be replaced by inductances or capacities.
Patent GB-1211778-A (GB)
Title: Pulse generator
IPC: H04N5/12
Filed: 1968-02-01
Abstract: 1,211,778. Pulse generators. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Feb., 1968 [4 Feb., 1967], No. 5253/68. Headings H3A, H3P and H3T. In a pulse generator a capacitor 18 is periodically discharged substantially linearly by a voltage A of opposite polarity and each time the voltage across the capacitor reaches a given value an amplifier element 4 conducts and the capacitor 18 is again charged, a rectifier element 19 which is conductive for the charging but is cut off by synchronization pulses is connected between the capacitor 18 and the control electrode of the amplifier element 4. The pulse generator produces an output at 12 for the vertical or frame deflection coils of a colour television receiver. A positive pulse from winding 15 is applied via differentiating circuit 16, 17 to the base of a transistor 4 and at the beginning of the fly-back period causes the transistor 4 to conduct to discharge a capacitor 3. The base of transistor 4 becomes negative due to the charge across capacitor 17 and at the end of the fly-back and start of the stroke the voltage feed-back via the differentiating circuit 16, 17 makes the base further negative and transistor 4 turns off. The diode 19 turns on and the capacitor 18 which stabilizes the frequency together with capacitor 17 discharge and charge reversely to the voltage at A. The positive voltage now at the base of the transistor 4 causes it to conduct and the above is repeated. Synchronizing pulses are applied at 26 to cut off the diode 19. The natural frequency of the circuit remains substantially constant since the charging and discharging voltages of the capacitors are proportional to the supply voltage. The conduction of the output valve 7 is dependent on the state of charge on the capacitor 3 and is also determined by the feedback network 13. The resistor 20 may be variable as may be resistor 1.
Patent GB-705127-A (GB)
Title: Improvements in sealing means for the rotary shafts of mixers for rubber and other plastic materials
IPC: B01F15/00
Filed: 1952-02-28
Abstract: 705,127. Shaft seals. FARREL-BIRMING- HAM CO., Ltd. Feb. 28, 1952 [March 12, 1951], No. 5259/52. Class 122 (5) A sealing device for the rotor shaft 13 of a mixing machine comprises a first pair of axially spaced ring members mounted on the shaft for rotation therewith and axial movement therealong and each having its face remote from the chamber urged by the pressure in the chamber into contact with a side face of one of a second pair of ring members carried by the end wall of the chamber. A sleeve 18 secured to the shaft 13 has slidably mounted thereon two sealing rings 20, 21 that closely surround the sleeve 18 and have grooves 22, 23 slidable on a key 24 partially embedded in the sleeve: 18 and secured thereto by set screws 26. The sealing rings are located respectively with clearance in a recess 27 in the chamber, wall 16 and in a space 32 formed by two stationary wear rings 28, 29 that surround the sleeve 18 and are housed in a retainer ring 30 secured by bolts 31 to the wall 16. The chamber pressure urges the sealing rings 20, 21 axially so that their end faces remote from the casing wall make rubbing contact with the wear rings 28, 29. To facilitate renewal the wear rings 28, 29 and the retainer ring 30 are made in segments.
Patent GB-1048432-A (GB)
Title: Process and apparatus for extruding tube lengths of thermoplastic material
IPC: B29C48/475
Filed: 1964-02-07
Abstract: 1,048,432. Extruding plastic substances. R. HAGEN, [trading as KAUTEX WERKE, REINOLD HAGEN]. Feb. 7, 1964 [Feb. 14, 1963], No. 5311/64. Heading B5A. Lengths of thermoplastics are produced from a crosshead extruder in which the material in the crosshead is brought substantially into the form of the finished length, and thereafter extruded. Material from a worm extruder 12 provided with heating and cooling means passes through opening 25, annular passage 25a and chamber 26, and forces back a piston 33 to enter an annular storage chamber 26a. The flow resistances are such that until material fills, chamber 26a it is not extruded through the adjustable die nozzle 29. When storage chamber 26a is full, rod 38 attached to piston 35, which moves with the piston 33 trips limit switch 39 to operate pump 41 which forces pistons 35 and 33 down through their respective chambers to extrude a length of product through nozzle 29 for further treatment such as blow moulding. Heating means 42, 43 and cooling ducts 44 are provided.
Patent GB-265789-A (GB)
Title: Improved construction of combined vacuum and relief valves
IPC: F16K17/194
Filed: 1926-02-25
Abstract: 265,789. Timpson, F. M., and Timpson, A. F. C. Feb. 25, 1926. Safety - valves; vacuum relief valves. -A combined pressure and vacuum relief valve particularly applicable for use on closed storage vessels has the two valve members S, N arranged to seat on horizontal partitions joining the opposite sides of the casing above and below passages B leading to the atmosphere, the said valve members being slidably mounted on a fixed rod Q held inposition by a removable cover V. The partitions finish short of the front and rear walls of the casing and are joined by vertical walls I so a.; to leave passages connecting the inlet C with the space above the vacuum relief valve S. A circular aperture in the upper partition is recessed to receive a spoked ring R surfaced on its upper side to form a seat for the valve S and having a central boss secured to the guide rod Q. The openings B are protected by a gauge and by deflecting covers W positioned by flanges 11 on the casing and secured by screws X.
Patent GB-328714-A (GB)
Title: Improvements in door checks
IPC: E05F5/10
Filed: 1929-02-18
Abstract: 328,714. Rosenthal, C., Armistead, H. M., Sperry, J. C., and Guiberson, J. W. Feb. 18, 1929. Checks.-In a door check of the kind in which the end portions of the cylinder are interconnected through a passage in the wall of the cylinder and means are provided to'allow a relatively free flow of the checking fluid in one direction of movement of the piston and a restricted flow in the other direction, an additional passage or port is provided for bye-passing the fluid round the piston at or towards the end of the doorclosing movement. In Fig. 1, the piston 13 is provided with a ball check valve 18 which provides a restricted opening when the piston is pushed into the cylinder 11 as the door closes. The fluid escapes through a passage 19 in the cylinder wall, this passage being adjustably controlled by a valve member 20. When the door is nearly closed the fluid escapes to the other side of the piston through grooves 21 in the wall of the cylinder. The port or passage 17 terminates in radial passages 33 at the base of the stem 14, and notches 16 in the sleeve 12 provide free access for the liquid from the forward end of the cylinder to the radical passages and port 17. In the arrangement shown in Figs. 8 and 10, the fluid flows freely from the container 230 past the valve 218 into the cylinder 211 as the door is opened. When the door closes the valve 218 is closed and the piston 213 forces the check fluid through the passage 219 until the piston approaches the end of its stroke, when the additional passage 238 functions. This is effected when the piston is moved past the opening of the passage 238 into cylinder. The passages are provided with adjustable valve members 220, 239.
Patent GB-525370-A (GB)
Title: Improvements in and relating to sliding contact members (e.g. machine parts)
IPC: F16C33/12
Filed: 1939-02-20
Abstract: 525,370. Sliding contact members. JUNKERS FLUGZEUG - UND - MOTOBEN - WERKE AKT.-GES. Feb. 20, 1939, No. 5579. Convention date, March 16, 1938. [Classes 122 (i) and 122 (ii)] One of a pair of sliding contact members, for machine parts or the like, consists of a cast iron alloy whilst the other member, or that part thereof in sliding contact with the first member, consists of an aluminium alloy containing one or more added elements which form a solid solution with the aluminium, the addition being such that the eutectic composition is not exceeded. Examples of suitable percentages of suitable elements are given in the Specification.
Patent GB-285857-A (GB)
Title: Improvements in labyrinth packing
IPC: F16J15/447
Filed: 1928-02-22
Abstract: 285,857. Akt.-Ges. Brown, Boveri, et Cie. Feb. 23, 1927, [Convention date]. Stuffing - boxes, substitutes for.-In labyrinth packings which are secured in undercut grooves, two or more members are arranged side by side to lock one another without caulking, the width of the members being such as to permit, insertion in the groove without special filling places. Sheet-metal segmental packing-rings 1, Fig. 9, may be secured by two segmental retaining-rings 6, 7 arranged side by side, the rihgs being preferably arranged to break joint. Each packing 1 may comprise, as shown, two superposed rings of segments arranged to break joint, in which case one ring may be shorter radially than the other, or the outer peripheries of the two rings may be bent apart, as shown, to form two packing points. A labyrinth packing-ring may be arranged between two retaining members, as well as at each side. The retaining members may be circumferentially grooved, in order to avoid undue stresses due to expansion. Packing members 18, Fig. 5, may be integral with the root or retaining portions 16. In this case the packings are preferably of angle form, as shown, in order to permit yielding in case of rubbing contact. In mounting the packing on a shaft, the retaining members 26, 27, Fig. 13, last inserted are of reduced width, to permit insertion of a key piece 28, which is secured by beading over the edges 29.
Patent GB-437004-A (GB)
Title: A process for the production of preparations of 6-methylamino-2-methyl-2-heptene
Filed: 1935-02-21
Abstract: By interaction of 1-phenyl-2 : 3-dimethyl - 4 - dimethylamino-5-pyrazolone with salts of 6-methylamino - 2 - methyl - 2 - heptene or their components, products are obtained which are very water-soluble and of therapeutic use.  The examples describe the preparation of compounds of the pyrazolone with the hydrochloride, acid tartrate, cinnamate and diethylbarbiturate of methylaminomethylheptene.  6 - Methylamino - 2 - methyl - 2 - heptene is prepared by the reduction of methyl-2-heptene-2-one-6 in the presence of methylamine.  The formation of its salts is described.
Patent GB-216229-A (GB)
Title: Improvements in or relating to gramophones and other similar sound producing apparatus
IPC: G10K13/00
Filed: 1923-02-27
Abstract: 216,229. Byne, L. St. G., and Wethered, O. S. Feb. 27, 1923. Cases with internal horns.-In a gramophone or the like of ordinary design, the floor of the horn chamber is wholly or partially removed to allow of access of sound to a tubular resonator mounted beneath, the resonator having one or more openings at its lower end, and the whole instrument being mounted on the usual supports. Fig. 1 shows a machine in which a resonator A<4>, of square section and open at both ends, is mounted below the horn chamber A<2>, with which it communicates. A modified form of resonator, having partitions A<8>, is shown in Fig. 4. In the form shown in Fig. 7, the bottom of the horn chamber A<2> is removed, and the floor of the compartment C which is normally used for storing records is cut away at C<1>. The doors of the compartment C are replaced by a fixed wall, and the shelves, if any, are removed. The compartment then serves as a resonator. Instead of or in addition to cutting away the floor, apertures may be formed near the lower ends of the side walls of the chamber C. The horn B<1> may have one or more openings such as B<2>, preferably on its upper side. Specification 205,536 is referred to.
Patent GB-660845-A (GB)
Title: Sharpener for pencil-leads
IPC: B43L23/08
Filed: 1949-03-02
Abstract: 660,845. Pencil-sharpeners. KARTRO SOCANON. March 2, 1949, No. 5755/49. Class 146 (iii). A sharpener for pencil-leads comprises a number of planar surfaces e.g. 6a, 7, adapted to serve as a support for the end of the lead being sharpened and to support the conical end formed by the sharpening along at least three converging lines, only one of which reaches the point of convergence 9 and extends therebeyond and consists of a narrow and sharp edged slot 5 in one of the planar surfaces. The pyramidal construction is formed by a strip 6a having turned up edges 6 for joining a second strip 7 not reaching to the point of convergence 9. Alternatively, the pyramidal body may be located in a cylindrical body rotatable by a hand-knob and having a pivoted trap to collect the cuttings.
Patent GB-126419-A (GB)
Title: Quick Chucking Arrangement for Collet & such like Chucks for Lathes & other Mechanical Devices.
Inventor: CURRAN CHARLES JAMES
IPC: B23B31/26
Filed: 1918-04-04
Abstract: 126,419. Curran, C. J. April 4, 1918. Channels in ball bearings. -The chuck jaws h of a lathe or like machine are attached to a rod e in the hollow spindle c, normally pressed to the left to close the jaws by a spring 2 acting on collars at one end and on the flange n of a sleeve m at the other end. To release the work, the rod e is pressed to the right by a screw u acting through a ball thrust-bearing s, and operated by levers &c. The ball thrust-bearing s is lubricated from a grease cup through holes in the screw u and the bearing.
Patent GB-764387-A (GB)
Title: Improvements in and relating to parking devices for bicycles and the like
IPC: E04H6/00
Filed: 1955-02-28
Abstract: 764,387. Cycle supports. WIRZ, P. Feb. 28, 1955, No. 5863/55. Class 136(1). A bicycle parking device has on a frame accessible from one side, a plurality of hooks 10 disposed side by side at a distance from one another for the purpose of each suspending a cycle. The hooks 10 are slidable on bars 7, 7<SP>1</SP> lying side by side at a distance from one another. The bars are fastened at one end to a cross member 4 and at the other end alternately to an upper cross member 5 and to a lower crossmember 8 respectively. An inclined roof 6 is sypported by the cross-members 4, 5. Each hook 10 may be mounted on a cylindrical sleeve 9 which coaxially encircles the bar 7 or 7<SP>1</SP>, Fig. 3, or each hook may be attached to the axis of a roller 9<SP>1</SP> which is guided longitudinally on the carrying bar 7, Fig. 5.
Patent GB-851307-A (GB)
Title: Improvements in or relating to spool carriers
Inventor: SKINNER PETER
IPC: G11B15/66
Filed: 1958-02-24
Abstract: 851,307. Securing spools on shafts. DECCA RECORD CO. Ltd. Feb. 24, 1959 [Feb. 24, 1958], No. 5939/58. Class 80 (2). A releasable coupling for connecting a spool of a film, magnetic or paper tape handling mechanism to a driving shaft 10 comprises dogs 11 fast with the driving shaft and a locking member 22 having ears 23 which can be aligned with the dogs so that a spool (not shown) can be passed over the locking member to bear against a flange 36 of the driving shaft. An operating sleeve 17 is then rotated which, through a friction washer 25, rotates the locking member 22 until rotation is limited by a pin 31 on the flange abutting the end of a slot in the member 22, in which position the ears 23 are adjacent the front side of the spool. Further rotation of the sleeve 17 causes slip at the friction washer 25, but pins 29 fast with the flange co-operate with cam surfaces 28 formed on the sleeve 17 to permit a spring 18 to move the sleeve 17 and locking member 22 to the left to force the ears tightly against the spool. The pin 31 is located in a slot in the sleeve 17 to limit its rotation. A pin fast with the sleeve 17 engages a slot in the locking member so that the locking member is prevented from rotating in either direction due to the pins in their respective slots. On reverse rotation of the sleeve to release the spool it is first moved axially to release the grip on the spool whereupon member 22 rotates to align the ears with the dogs.
Patent GB-175538-A (GB)
Title: Improvements in powder spreading machines
IPC: A01M9/00
Filed: 1921-02-22
Abstract: 175,538. McDougall, I., and Howles, F. Feb. 22, 1921. Insecticide distributors.-A powder blower for distributing insecticides on trees comprises a bellshaped member e sliding on a central tube d and formed with an apertured flange f resting on the powder h in a container a. Air is blown up the pipe d by a fan b operated by an electric motor c, and passes down between the tubes d, e on to the surface of the powder, which is agitated and carried through openings g to the outlet j. The pipe d may be formed with a row of tangential openings arranged helically to deliver the air on to the powder. A by. pass may be provided to deliver a regulated quantity of pure air to the outlet. A number of containers with their delivering-nozzles may be combined in one machine.
Patent GB-1001487-A (GB)
Title: Improvements in or relating to moveable conveying devices
IPC: B65G43/00
Filed: 1962-02-16
Abstract: 1,001,487. Endless conveyers. C. VAN DER LELY N.V. Feb. 16, 1962 [March 30, 1961], No. 6017/62. Heading B8A. In a movable conveying device including an endless conveying belt, protection members 61, 62 for covering portions of a drive belt 56 and a pulley 19 are secured to a plate 58 which is clamped on a frame tube 22. The plate 58 also protects part of the pulley 19. An engine 36 is supported on a plate 35 which is vertically adjustable on frame members 33 by actuation of a crank 46. A protecting hood 40 for the engine pulley 39 is mounted on the plate 35. The angle of a conveyer assembly 16, 18, 27 relative to the ground is adjustable and, by means of tubes 13, 14 sliding one into the other, the height of the assembly is variable. The drive may be of the chain and sprocket type.