baber/WOPTO huggingface dataset:
Patent GB-915977-A (GB)
Title: Improvements in and relating to apparatus responsive to fluid flow
IPC: H02H5/08
Filed: 1960-02-22
Abstract: 915,977. Measuring electrically. STERN, W. L. Jan. 20, 1961 [Feb. 22, 1960], No. 6129/60. Class 40 (1). [Also in Group XXIX] A thermistor in the path of a flowing fluid, is connected in series or in parallel with a relay coil in order to give a cessation of flow alarm (see Group XXIX), or an indication of the speed of flow. Fig. 4 shows an arrangement in which the potential across a thermistor Th, in series with resistor RE across supply terminals T1, T2, varies as the fluid flow varies, this potential charges up capacitor C through normally closed contacts FCO until relay CL operates, opening contacts FCO when relay CL holds until capacitor C has discharged through the relay coil when contacts FCO close to restore the initial condition and the cycles repeat. The charging time of capacitor C until relay CL operates will depend on the potential across thermistor Th and hence on the fluid flow. contacts CO are also operated by relay CL and may be connected in control or indicating circuits, e.g. to light a lamp. If the flow drops below a certain value the resistance of thermistor Th will fall to such a low value that the potential across it will not be sufficient to operate the relay CL and the contacts CO will remain permanently closed. In a similar arrangement the relay contacts are arranged to switch a discharge resistor across the capacitor when the relay operates to give a quick discharge (Fig. 5, not shown) while Fig. 6 shows an arrangement in which the relay operates a mercury switch to produce a flashing effect.
Patent GB-213551-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines particularly for aerial machines
IPC: F01L5/06
Filed: 1924-03-10
Abstract: 213,551. BlÚriot AÚronautique Soc. Anon. March 29, 1923, [Convention date]. Regulating; valves. - In a two-stroke engine having admission at a<0> and exhaust at h<0> controlled by ports a<00> and h<00> in a sleeve valve h, means are provided for varying the time during which the admission ports remain open after the exhaust ports have been closed. In the form shown, an inclined key on the valve crank shaft l engages helical grooves in a slidable bush k, Fig. 7, geared to the main crank shaft. In addition, the connecting-rod j of the valve may be attached to different points l<0> arranged spirally on a crank disc on the shaft l. l. The invention is particularly suitable for varying the amount of charge returned into the inlet pipe during compression on aircraft engines. A throttle may be provided in the suction to the compressor for preventing too much compression at low altitudes. The speed of the compressor may be varied. A check valve may be provided between the compressor and the cylinder, to prevent the gases from being drawn back through the inlet ports.
Patent GB-740218-A (GB)
Title: Improvements in or relating to voltaic cells
IPC: H01M6/06
Filed: 1954-03-03
Abstract: 740,218. Batteries. RUSINOL, S. P. March 3, 1954, [March 3, 1953; May 12, 1953], No. 6247/54. Class 53. The container of a battery consists of two metal cups 1, 2 separated from one another by insulation 9, the open end of the outer cup being turned over as shown at 11 to press the insulation against the bottom of the inner cup to form a tight seal as shown in Fig. 1. The positive electrode 3 and electrolyte 5 are contained in the inner cup, the negative electrode 4 being in contact with the closed end of the outer cup. The cups form the poles of the battery. The bottom of the inner cup may project through the open end of the outer cup as shown in Fig. 3, the open end of the outer cup and the insulation 9 being turned over on a shoulder 12 of the inner cup. The battery may be of flat shape as shown in Figs. 1 and 3 or of cylindrical shape as shown in Fig. 16. In'the latter case the insulation between the two cups may take the form of rings 20, 21. One electrode may fit into a recess 26 in the outer cup which forms one pole, the other pole consisting of a projection 25 on the inner cup.
Patent GB-318097-A (GB)
Title: Improvements in liquid-dispensing apparatus
IPC: B67D7/38
Filed: 1929-02-26
Abstract: 318,097. Bowser & Co., Inc., S. F., (Assignees of Bond, R. W.). Aug. 27, 1928, [Convention date]. Dispensing liquids.-The plant includes a pump 13, Fig. 1, for drawing liquid from a storage tank and delivering through pipes 18, 19, 20 to dispensing devices 23, a bye-pass valve 66 and air release 68 being provided. Each device 23 has a lever 52, the raising of which acts through links 79, 87, Fig. 2, to close a switch 54 to set the pump motor 14 in operation and to open a valve 29 to permit the liquid to pass through a meter to a sight-glass 35 and hose 37. The link 87 is connected to an arm 89 on a shaft 92 having a crank adapted to operate a push rod 95, Fig. 7, to depress the valve member 97. The hose nozzle when out of use may be inserted through a hole 113 in the lever 52, hung by a hook 115 from the curved portion 114, or inserted through a hole in the casing 74. Insertion into the casing pushes back a plate 110 and so positions a stop member 106 as to prevent lifting of the lever 52; if the lever 52 is in the lifted position, the plate 110 cannot be pushed back. The hose may be locked in the inserted position by means of a padlock engaged with holes 121, Fig. 10, in pivoted arms 116 having semi-circular recesses 119, and the hose nozzle may have a valve 59 opened by a lever 60.
Patent GB-689078-A (GB)
Title: Improvements in spring cushion constructions
IPC: A47C7/30
Filed: 1951-03-16
Abstract: 689,078. Spring upholstery. NO-SAG SPRING CO: March 16, 1951 [March 29, 1950], No. 6340/51. Class 52(iv) The central transverse spring units 33 of, e.g., a tractor seat having a frame 1, each comprises an upper zig-zag spring 35 having a web portion 37, downwardly turned legs 39 and inwardly turned parts 41 the lower ends of which are secured to frame members 3 and a lower zig-zag spring 43 in the same vertical plane and having a web 45 and end turns 47 secured by clips 49 to the parts 41. The lower webs 45 have a common buffer pad 53 or a pad for each. The upper springs 35 are secured to a boundary wire 61 by clips 63. Front and rear units 9, 11 are of known construction, comprise an upper web part 17 and legs 19, 21 and are connected to wire 61 by wires 65 and suitable connectors. Parts 41 engage sockets 25 of members 23 mounted on the frames 3, endwise movement being prevented by lugs 29 and turning movement by flanges 31. As shown in Fig. 10 each unit of a seat having a raised rear frame 75 comprises a lower spring 105, 95, 97 and an upper spring 93, 89, 91, connectors 49 being provided. As shown in Fig. 11, a lower spring 123, 127 and an upper spring 121, 115, 117, 119 form each unit. As shown in Fig. 12, an upper spring 143, 135, 137 and a lower spring 145 joined to the rear frame 75 are connected at the front by a link 139 and a spring 141 to the front frame 73, the link 139 and spring 141 being continuations of either the spring 137 or the spring 145.
Patent GB-1426091-A (GB)
Title: Blue-flame retention gun burners and heat exchanger systems
IPC: F23C9/00
Filed: 1973-02-09
Abstract: 1426091 Liquid fuel burners F W BAILEY 9 Feb 1973 [10 Feb 1972] 6581/73 Heading F4T A process of burning liquid hydrocarbon fuel in a burner having a sleeve with an open breech end and an outlet mouth opening into a combustion chamber comprises the steps of spraying the fuel from a nozzle into a region disposed in the sleeve near the mouth thereof, supplying a major portion of combustion air as multiple jets directed into and through the sleeve, cooling the nozzle with a minor portion of combustion air and discharging said minor proportion of combustion air directly into said region, recirculating gaseous combustion products from the combustion chamber to the breech end of and into the sleeve, the recirculating combustion products flowing in heatexchange relationship with a fluid-cooled heatexchanger, and mixing the combustion air jets with the recirculating combustion products in a zone positioned upstream of the fuel injection region so that a stable blue flame is produced in the combustion chamber having a low nitric oxide and low particulate emission level. The burner comprises a fuel inlet pipe 44 having an atomizing nozzle 46 and being located in a tube (84) to which the minor portion of combustion air is supplied through inlets 100, this air exiting as divergent jets 135 through outlets 133. The tube (84) extends into a sleeve 134 to which a major portion of combustion air is supplied as jets 102 emerging from adjustable orifices 72 in the base of a cupshaped member 70 defining a plenum chamber 66 to which air is supplied by a blower. The sleeve 134 opens into a combustion chamber 106 and has a flange 138 forming a baffle for directing some of the combustion products into a recirculation passage 139, 140 leading to an annular zone 104 where the combustion products mix with air jets 102. The size of orifices 72 is adjusted by means of an apertured disc 82 secured to tube 84 which is keyed to a support 96 for ignition electrodes, support 96 being rotated by means of arm 108. A spring 92 serves to retain tube 84 in position and maintain disc 82 in contact with the base of member 70. An abrupt increase in cross-section is provided adjacent mouth 136 of sleeve 134 so that a vortex 168 serving as a flame stabilizer is formed. In a modification the effective size of orifices 72 is adjustable by means of plugs 172 which are movable axially of fuel supply pipe 44. Two of the plugs are supports for ignition electrodes 118, and the plugs may be provided with fins 188. The combustion chamber 106 is located in a heat-exchanger 14 containing for example water, the refractory material 150 being removed from a portion 151 of the chamber wall adjacent the flange 138 and the heat exchanger having a metal wall 144. Some of the combustion products pass into a flue (154, Fig. 1, not shown) and are directed into tubes (156) extending through the heat exchanger.
Patent GB-643601-A (GB)
Title: Devices for the transmission of electro-magnetic waves by means of wave guides
IPC: H01P1/02
Filed: 1948-03-02
Abstract: 643,601. Wave-guides. COMPAGNIE INDUSTRIELLE DES TELEPHONE. March 2, 1948, No. 6591. Convention date, March 4, 1947. Drawings to Specification. [Class 40 (viii)] The bends or elbows separating straight sections of a circular wave-guide are such that successive straight sections are at angle which is an integral multiple of 310‹#/D where # is the free space wave length and D is the diameter of the guide. The diameter of the guide may be chosen to satisfy this relation for a given angle. E 1  waves formed by transmitting an Ho wave round a bend cancel out if the relation is satisfied.
Patent GB-1403101-A (GB)
Title: Device for indicating stopping time of a vehicle
IPC: B60R16/023
Filed: 1972-02-11
Abstract: 1403101 Indicating stopping time of vehicle J H D WALTON 11 May 1973 [11 Feb 1972] 6605/72 Heading G1N In a device for indicating to a driver of a vehicle the stopping time of the vehicle from a predeterminable instant, actuating means are provided to set the predeterminable instant, generating means being initiated by actuation of the actuating means to produce an indicating signal to define a period starting from the set instant, the duration of the period being dependent upon a signal related to the vehicle speed. The device may be coupled to receive a signal related to the speed of the vehicle transmission, Fig. 1, or to receive a signal from the ignition system, Fig. 2 (not shown). As shown, pulses generated in a coil 1 by rotation of the universal joint 3 are applied, to a differentiating amplifier circuit 6, 8 and a rectifier 7, the output of the rectifier feeding a leaky integrator 9, 10 which provides a uni-directional signal related to vehicle speed to the base of one transistor of an amplifier 11. This signal is compared with a varying reference signal provided by an integrator 12, 12a at the base of a second transistor of the amplifier 11. The integrator provides the reference signal when the actuating means 15 is actuated, a relay 13, a lamp 16 and a loud-speaker 18 also being energized. When the reference signal reaches the level of the uni-directional speed signal, the relay 13 is deenergized and the lamp 16 and loud-speaker 18 are thus also de-energized to indicate the end of the stopping time. The time constant of the integrator 12, 12a may be charged for varying road conditions, temperatures, engine loads or gear level, by varying resistor 12a or coupling additional capacitors, e.g. 20, into circuit. In further embodiments, the speed signal may be derived from a road wheel, a tachometer generator, or a potentiometer which is spring- loaded and driven through a viscous coupling.
Patent GB-545348-A (GB)
Title: Improvements in and relating to photographic plate changers
IPC: G03B42/02
Filed: 1941-05-24
Abstract: 545,348. R÷ntgen-ray apparatus ; photographic plate changers. BRITISH THOMSON-HOUSTON CO., Ltd. May 24, 1941, No: 6683. Convention date, May 25, 1940. [Class 98 (i)] A photographic plate or film changer, particularly for use in making stereoscopic X-ray photographs, comprises a substantially rectangular carrier on each side of which a plate or film is held, the carrier being pivotally and slidably mounted at one end in a track and operated by mechanism such that the carrier turns about the pivot as the latter moves from one end of the track to the other, thereby reversing the carrier to bring either plate to the exposure position. As shown applied to an X-ray apparatus, the apparatus is housed in a casing 21 having a front curved panel 25 of ray-transparent material which facilitates the positioning of the chest portions of the subject. The casing is vertically adjustable on hollow standards 133, for which purpose it is provided with rollers frictionally engaging opposite edges of rails 134 in the standards. One pair of rollers is mounted on a shaft 143 which may be rotated to raise and lower the casing through a chain and sprocket drive and gears 149, 151 from a stub shaft carrying a handle 163 or pawl 167 engages a ratchet 165 frictionally mounted on the shaft 153 carrying the gear 151, the friction being sufficient to maintain the casing at its adjusted height, but allowing reverse rotation of the shaft 153 to lower it. The plate or film carrier 33 comprises a panel with a central plate 39 of lead or other ray-impervious material arranged between outer plates 41 each carrying upper and lower channel members 45 between which a pair of casettes 47 may be slid through a vertical slot 29 in a side wall of the housing 21. At one end of the carrier are pivots or slide pins 37 slidable in channel rails 31 secured to the top and bottom of the housing and extending parallel to the front. The carrier is normally parallel to the front of the housing with the pins 37 at one end of the rails, and is reversed to bring the other plate to exposure position by sliding the pins to the other end of the rail whilst rotating it about them, Fig. 3, showing it in course of movement. The movement is produced by an arm 51 pivoted to the housing and the carrier and operated by a link 63 connected to a crank 61 which is rotated through one revolution by worm gearing driven from a motor 85 through a friction clutch which slips should there be an obstruction to the movement of the carrier. The inertia of the carrier moves it through the half-way dead-centre position shown in Fig. 3. Switches operated by a cam 79 on the vertical crank-shaft 77 control the motor circuit so that the motor gives a single rotation to the shaft 77 and then stops, independently of whether the button of the starting switch is released before or after the completion of the movement. A spring-pressed split-collar brake 91 normally bears on the shaft of the worm drive, but is released by a solenoid energized when the motor is operating.
Patent GB-622329-A (GB)
Title: Improvements in coin freed amusement machines
IPC: G07F17/34
Filed: 1947-03-11
Abstract: 622,329. Coin-freed amusement apparatus. BRYAN, W. E. March 11, 1947, No. 6739. [Class 27] Prize-delivery mechanism.-A coin-freed amusement apparatus comprising a spinning disc 10 with radial slots 100 and adapted to be engaged by a selector arm 11 which, if it drops into one the slots, controls delivery to the operator of a number of coins dependent upon the depth of the slot and penetration of the arm, is characterized by means additional to the disc by which a limit may be set to the penetration of the arm so that the maximum number of coins delivered can be readily controlled by the owner of the apparatus. The additional means shown comprises an abutment 13 adjustably clamped to a fixed bracket 17 and engaged by a projection 14 on the selector arm 11 to limit its inward movement. Steps 130 are provided in the operative face of the abutment so that rapid adjustment can be made by rocking it on its clamping bolt 16. Certain of the slots 100 are made deeper than the others sufficient to comprehend the adjustable limit set by the abutment 13. The edge of the disc 10 intermediate the slots is formed with braking serrations, the leading and trailing edges of the slots being formed respectively at the crests and troughs of the serrations; this is to prevent the arm 11 entering a slot after first engaging an intermediate portion of the disc. Other details of the apparatus illustrated are as described in Specification 353,451. The slotted disc may be replaced by a boss with radially projecting pins.
Patent GB-685278-A (GB)
Title: Improvements in moulding apparatus
IPC: B29C48/07
Filed: 1951-03-21
Abstract: 685,278. Coating webs. UNITED STATES RUBBER CO. March 21, 1951. [April 18, 1950] No. 6741/51. Class 140. [Also in Group V] Apparatus for shaping plastic under pressure in a cavity formed between a stationary lubricated surface and a movable surface (see Group V) is adapted for coating a length of fabric 106 with e.g. rubber by providing means to wind the fabric from a supply roll 107, between the stationary and movable surfaces, and into a package 115. The movable surface is that of a rotating drum 108 which carries the fabric in front of the orifice 109 of an extruder head 110, past a lubricant applicator 112 and under a confining shield 113 which forms the stationary lubricated surface. The rubber &c. is forced onto the fabric by the extruder and is formed into a smooth coating on the fabric as it passes under the confining shield.
Patent GB-704497-A (GB)
Title: Coupling device for shafts of motors, machines, speed-changing means and the like
IPC: F16D3/58
Filed: 1952-03-17
Abstract: 704,497. Flexible couplings. SOC. DES FABRICATIONS UNICUM. March 17, 1952 [April 17, 1951], No. 6887/52. Class 80 (2) Male and female members 2, 3, secured to or formed on shaft ends, are coupled by cylindrical rubber rollers 4 engaged in complementary arcuate recesses 2', 3' in the members, the rollers being retained in position by a spring ring 5 engaged in an annular groove in the member 2.
Patent GB-127660-A (GB)
Title: Improvements in Devices for Decapping Armour Piercing Shells.
Inventor: TRESIDDER TOLMIE JOHN
IPC: F41H5/02
Filed: 1917-05-15
Abstract: 127,660. Tresidder, T. J. May 15, 1917. Armour.-A screen or obstacle containing interstices, reticulations, or spaces is fixed to hard-faced armour in contact with, or close to, its surface, with the object of de-capping projectiles without recapping them. Figs. 3 and 4 show one example. Rods e, the ends of which are secured in top and bottom U- shaped frames e<2>, are arranged under rods f disposed at right angles to them and secured in the side U-frames f<2>. The members e<2> have bolted to them plates g, which are riveted or bolted to the armour-plating. In the modification shown in Fig. 8, the rods f are entwined around the rods c. Fig. 9 shows the bars e, f fitted with slots e<4>, f<4> respectively. The rods or bars may be crossed diagonally; or the whole screen may be cast to form a grating, or consist of a wooden or chain mat of steel. A thin plate may be fitted in front of each screen section.
Patent GB-1029933-A (GB)
Title: Electrical networks
IPC: H03H7/06
Filed: 1963-02-21
Abstract: 1,029,933. Impedance networks. WESTERN ELECTRIC CO. Inc. Feb. 21, 1963 [March 21, 1962], No. 6984/63. Heading H3U. A multiterminal network whose prescribed driving point and transfer characteristics exhibit at each of one or more finite frequencies, other than zero, a negative residue associated with one pair of the network terminals, comprises a plurality of positive elements derived from one or more auxiliary sub-networks having series arms of like kind interconnecting the pair of terminals associated with each negative residue. Each admittance function Y ij  (where i, j can be 1 or 2) may be expressed as the quotient of two polynomials in s, the complex frequency variable. Assuming that the network is to contain only resistive and capacitive elements, the quotient can be expanded into a generalized partial fraction expansion where K# ij  is the residue of the admittance expression Y ij  at a pole of infinite frequency. The realization of the complete admittance of the network proceeds as follows: corresponding to each non-degenerate finite pole so of the admittance Y ij , there is a T of the kind shown in either Fig. 4 or Fig. 6, or a parallel combination of the two (Fig. 7, not shown). Corresponding to each degenerate finite pole, there is a single two terminal branch, shown in Fig. 5. Corresponding to the behaviour at zero and infinite frequencies, there is a sub-network of the kind shown in Fig. 3. In addition, each network corresponding to a finite pole may be associated with a bridging arm in order to cancel unwanted effects corresponding to an additional residue at zero frequency. Some or all of these bridging arms may be negative and are realized by the use of known negative elements or by negative impedance converters. Under certain conditions, groups of the subnetworks can be coalesced into subnetworks which either eliminate the negative bridge element or reduce its required admittance magnitude. When reduced, the negative admittance may more readily be absorbed by desired residues at zero and infinite frequencies. The manner of connection of the sub-networks is shown. The complete network as presented in Fig. 8 (not shown), is realized without transformers and consists of a subordinate network 30, constituted by shunt-connected T networks and degenerate branches, bridged by several resistive-capacitive branches 31, 32, 33 which may be negative.