baber/WOPTO huggingface dataset:
Patent GB-1362194-A (GB)
Title: Door closure assemblies
IPC: E05F1/10
Filed: 1971-10-18
Abstract: 1362194 Door closure assembly ENVIRONMENT SECRETARY OF STATE FOR 18 Oct 1971 [17 July 1970] 34683/70 Heading E2M A door closure assembly comprises a closer which urges the door towards the closed position, a retainer which is engageable with the closer to render the closer inoperative, the retainer being operated by a trigger, actuated by signals from a control means the control means having an overriding switch which disengages the retainer. As shown, the assembly comprises a closer 2 which incorporates a rod 2b mounted in plummer-blocks 2c 2d on base plate 8 above a door. A spring 2a acts between the block 2c and a cam boss 2e fixed to the rod 2b. The cam boss 2e has a flat base sliding on the base plate 8, two sides, and two chamfered portions 2f and 2g joining-the sides to a flat top. The two chamfered portions and top form a cam profile for roller followers 3a. The rollers are linked by a spindle 3c to a link 3b having two parallel arms pivotally mounted, on the block 2c. If the rollers 3a on the retainer 3 are allowed by trigger to come below the chamfered portions, cam boss 2e is held against movement with respect to block 2c and the spring 2a is rendered inoperative. The door then swings freely. If the rollers do not go below the chamfered portions the retainer is not engaged and the closer remains operative to close the door. In the embodiment shown, the rod 2b is attached to the door 1 by means of a linkage 10 and a flange 13. The trigger is carried on a pivoted arm controlled by an over-centre spring so that it remains in the operative or inoperative position. A manual selector can normally rotate the arm to either position. The over-riding switch energises a solenoid to displace a cam slider, the cam part of which acts on a follower on another arm rotating with the first to turn it to the operative position holding the retainer 3 up out of engagement with the cam boss 2e. The slider is locked in the withdrawn position by a pivoted catch freed afterwards by a special key. The over-riding switch may be part of a fire-protection system preventing fire doors remaining open in the event of a fire.
Patent GB-178163-A (GB)
Title: Reinforced concrete pre-cast bracketted pier system of building
IPC: E04B1/21
Filed: 1920-12-09
Abstract: 178,163. Morle, A. H. Dec. 9, 1920. Reinforced-concrete columns and beams. - Concrete columns or piers and beams are connected by brackets which are integral with the piers and are reinforced by rods forged so that they have an inclined portion a<1>, Fig. 7, an upstanding pin a<2> which engages a recess in the precast beam, a horizontal portion a<3>, and anchoring portions a<4> which lie adjacent to the main bars of the piers. The piers may be rabbeted and brackets may be formed on adjacent faces. In a modification shown in Fig. 12, the bracket has an upstanding concrete portion which is reinforced by a continuation of the bars from the bracket and has a V-shaped recess to receive the pointed end of the beam d<4>.
Patent GB-878676-A (GB)
Title: Improvements in hydraulic torque converters
IPC: F16H41/26
Filed: 1957-11-07
Abstract: 878,676. Hydraulic torque converters. KRONOGARD, S-O. Nov. 7, 1957, No. 34785/57. Class 69 (2). The ratio R 1 -R 2 /t 2  of the radial extension (R 1 -R 2 ) of a radial flow reactor, in a torque converter, to the vane pitch t 2  at the reactor outlet is between 1.60 and 2.50, and the reactor vanes have substantially radially extending inlet portions shaped so that the sectionalarea contraction of the fluid flow at radial approach III exceeds 40% along, at most, the first 35% of the radial extension of the blading, and the fluid flow is deflected into the general direction of the vane passages within this radial range of the reactor blading. The radius ratio R 2 /R 1  lies between 0.65 and 0.80 and the axial extension or height of the vanes is between 0.90.t 2  and 1.70.t 2 . The liquid circuit of the torque converter, which may be as shown in Fig. 1, for example, includes a radial flow impeller 3 and turbine 4 connected by bladeless end passages with the reactor 8. The reactor blades may be twisted, Fig. 8 (not shown), so that the angle of flow approach to the impeller is substantially constant throughout the length of the inlet edges at low values of turbine to impeller speed ratio. The flare angle of the impeller blading is less than 6.5 degrees and for boundary layer control, (a) the reactor vanes may be slotted, Figs. 13, 14 (not shown), (b) the outer fluid passage between turbine and reactor contracts in the direction of flow between 8 and 12% and (c) the inner passage between reactor and impeller widens in the direction of flow by 4 to 5%.
Patent GB-1475531-A (GB)
Title: Markers
IPC: G01C15/04
Filed: 1974-08-07
Abstract: 1475531 Ground anchors J M THEVENIN 7 Aug 1974 [17 Sept 1973] 34838/74 Heading E1B A boundary marker 1 is secured to the ground by a ground anchor 2 passing through a central bore therein, said ground anchor comprising a tubular member slidable through said bore and having a ground penetrating end 9 and an open end, and the ground anchor being driven into the ground until an upper thickened portion of the tubular member abuts the marker, whereupon deformable anchoring elements 10 housed within the tubular member are pushed into the ground through apertures 12, which preferably cause the elements to form spirals. The marker preferably has a stepped bore formed with radial slots to allow passage of the lower ends of the rods 10. The marker may be filled synthetic resin or metal.
Patent GB-439447-A (GB)
Title: Improvements in and relating to control systems for electric circuit breakers and the like
IPC: H02J13/00
Filed: 1934-12-05
Abstract: 439,447. Switching systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 5, 1934, No. 34957. Convention date, Dec. 5, 1933. Addition to 438,287. [Class 38 (iv)] [See also Group XXXVIII] In the control system described in the parent Specification in which a high frequency carrier current is employed to operate selectively a circuit breaker 5, Fig. 1, in any one of a plurality of feeders 3 connecting a source of A.C. supply 2 to a network 1, the selection is facilitated by the provision of an impedance in each feeder, the circuit breaker being responsive to the voltage drop due to the impedance in its feeder. The impedance may consist of a transformer with primary and secondary windings 26, 27, the cores being separated by an air gap and the secondary winding connected to a condenser 28. Its impedance to current of normal frequency is low but to the high frequency carrier current is high. In shunt with the impedance is a circuit 29 tuned to the frequency of the carrier current and in series relation with a timing device such as a thermal relay having a heating element 31 in series with the secondary 32 of a transformer. To take a selected feeder 3 out of service, its circuit breaker 6 is opened and carrier current switch 22 is closed. The source of the voltage drops in the carrier current due to the network 1 and the impedance 25 26 is impressed across the corresponding shunt circuit 29, while only the difference of corresponding elements affects the shunt circuits 29 of other feeders. The thermal relay in the selected feeder thus causes engagement of contact 36 which operates the trip relay 21 so that switch 5 is opened. As the transformer 32, 34 is no longer energized by the carrier current, the switch arm, after a definite interval, leaves contact 36 and reengages contact 35. When the main switch 6 is closed again, the closing coil 11 for switch 5 is operated by current supplied through contact 35, contacts 41 in the overload circuit breaker 15 and contacts 37. In the modification shown in Fig. 2, the secondary 27 of the impedance is arranged in series with the tuned circuit 29 and the primary 34 of the thermal relay.
Patent GB-337997-A (GB)
Title: Means for jointing parts of furniture
IPC: F16B12/20
Filed: 1929-11-15
Abstract: 337,997. Scholz, E. Nov. 15, 1929. Joints. - For connecting together parts of furniture a solid cylindrical member a rotatable in a transverse hole in the part having a quarter to half of the cylindrical surface cut away by an eccentric bore b, is provided with a slot c for the accommodation of the shank of a wood screw g partly screwed into the other part. On rotating the member a by means of a screwdriver slot in the enlarged head d the parts are drawn together by the cam action of the inner face of the member on the underside of the head f of the screw.
Patent GB-177488-A (GB)
Title: Improvements in electrical selective calling devices
IPC: H04L15/26
Filed: 1921-12-30
Abstract: 177,488. Soc. Franþaise Radio-Electrique. March 22, 1921, [Convention date]. Electric selectors.-Comprises a selector for closing a call circuit on receipt of a Morse or like train of impulses, in which a member, such as the core 2 of an electromagnet 1, tends to close the call alarm circuit but is normally restrained by the energization of the magnet. On receipt of impulses, the member 2 is released, but can only complete its action provided that the received train of impulses coincides in its character with the spacing of a set of contactmakers 10. In the form shown, the core 2 tends to fall by its own weight against the action of a return-spring within the drum 4. The descent is controlled by a fly 9, a ratchet 7 being provided to make possible a quick return of the core; or by a dash-pot, oil-brake, free-wheel or the like. The electromagnet 1 is normally energized and helps the return-spring to keep the core 2 in its uppermost position, as shown, but a line-impulse causes the relay 13 to break at 15 the circuit of the electromagnet. The core 2 begins to descend, the return spring being too weak to sustain its weight alone, and if the call is that of the station in question the shoulders 10 on the core energize the relay 12 during the intervals between the line-impulses, so that the circuit of the magnet 1 is always broken either at 14 or at 15, and the shoulder 21 eventually closes the alarm-circuit at 16. If, however, the magnets 12 and 13 should be simultaneously energized or simultaneously de-energized owing to want of correspondence between the received signal and the spacing of the shoulders 10, the magnet 1 is again energized and the core 2 rises. To ensure that a further call shall not be effective during the ascent of the core, a hold-on circuit 19 is prepared at 18 by its descent. In a modification, the core may be replaced bv a rotary member. This hold-on circuit becomes effective at the same time that the magnet 1 is energized, and is only broken at 21 on completion of the ascent. The device may be re-set manually or automatically. The part 10 may be replaceable to adapt the apparatus for different calls.
Patent GB-175479-A (GB)
Title: Improvements in and relating to wheeled carriages for transporting boats and the like on land
IPC: B63C13/00
Filed: 1920-12-13
Abstract: 175,479. Hicks, A. Dec. 13, 1920. Boats adapted to run on land.-Near the ends of the axle of a wheeled carriage for transporting boats &c. overland are upwardly extending means which grip the sides of the boat and secure it temporarily to the axle. Pins c<1>, Fig. 1, detachably secure stub axles b to clips c on a main axle a. The boat e is held at each side by a hook g<2> on a spring g connected by a strap g<3> to the outer clip c, or the strap may pass loosely through the spring and have its upper end connected to the hook g<2>. Alternatively the main axle may be tubular and the stub axles slide in it, the boat being secured by thumb-screws to arms hinged to the main axle. In a modification, the axle may be made in two parts j, j<1>, Fig. 4, connected, adjustably or otherwise, by a pivotal clip k and a detachable clip k'. Spring-controlled arms h, hinged to the axle, keep the boat in position.
Patent GB-805923-A (GB)
Title: Pneumatically operated compressing tool
IPC: H01R43/042
Filed: 1955-12-08
Abstract: 805,923. Jointing by stamping. BURNDY ENGINEERING CO. Inc. Dec. 8, 1955 [Dec. 10, 1954], No. 35205/55. Class 83 (4). A fluid-operated crimping tool comprises a cylindrical body and a head having a jaw fixedly mounted thereto, a movable jaw mounted in said head, a piston operable in said cylinder, a valve for admitting fluid pressure to the cylinder, means for releasing the fluid pressure applied to said piston only when the movable jaw has been fully closed and independently of the valve. The tool comprises a cylindrical body 10 and a head 11, the cylinder containing a spring-loaded fluid-operated piston 14 provided with an extension 16 having a cam surface 17. The extension is adjustably attached to the piston and is guided by roller bearings 45 and 46. The head has a nose portion 28 accommodating a stationary crimping die 28A and a reciprocable die 31A mounted on a seat 31 adjustably attached to a plunger 30. A spring-loaded pivoted rocker 34 within the head is operated by a trigger 41 and has rollers 36 and 73 for engaging the piston extension 16 and plunger 30 respectively. A lever handle 49 for controlling the power operation of the tool is pivoted to the head and extends the length of the cylinder 10 and engages a pin 64 in the valve control unit 54 (Fig. 3) situated at the base of the cylinder. The pin operates an adjustably spring-loaded piston 60 to charge the cylinder with compressed air or discharge the cylinder to atmosphere through passages 56 and 55 respectively. An angularly drilled hole 70 allows fluid leakage to escape through the exhaust passage 55 when the valve is fully extended. In operation to crimp a connector, the trigger 41 is depressed to open the dies and allow the connector 75 to be inserted whereupon the trigger is released and the spring-loaded rocker pushing against the plunger 30 clamps the connector between the dies. The conductor is inserted on the connector and the lever 49 is depressed to supply air pressure into the cylinder 10 to raise the piston and the cammed projection 16 which engages the roller 36 on the rocker and applies the necessary force to the plunger 30 to effect the crimping. Release of the lever 49 opens the cylinder to exhaust and allows the piston to return and permit the dies to be opened by the trigger 41. If it is desired to keep the dies in a normally open position and so dispense with the trigger 41, the free end B of the rocker spring 38 is positioned against the spacer 40 as shown in Fig. 2.
Patent GB-854051-A (GB)
Title: Improvements in centrifugal distributors for granular fertilizers and like discrete substances
Inventor: WILLIAMS ALAN FOULKES
IPC: A01C17/00
Filed: 1955-12-08
Abstract: 854,051. Fertiliser distributers. MASSEYFERGUSON (UNITED KINGDOM) Ltd. Dec. 3, 1956 [Dec. 8, 1955], No. 35248/55. Class 6(1). A centrifugal fertiliser distributer comprises a varied spindle 40 provided with a cone shaped central spreader 43 and an annular shaped valve 44 arranged to tilt about a point of contact with the spreader so that there will be no effective opening in an arc extending to either side of the contact point. As shown the valve is held in contact with the spreader 43 by means of a spring 77 and is pivoted to a lever 73 which is pivoted into pin 74 and pivotally connected to a link 72. A cam mechanism is mounted in a casing 71 and is operated by a lever 70 to move the link 72. Movement of the lever in one direction opens the valve 44. A further movement of the lever 70 in the same direction closes the valve. A screw in the casing adjusts the effective length of movement of the link 72 and thus adjusts the open position of the valve. The spinner 40 is connected to a vertical tube driven by gearing from a tractor power shaft and a shaft rotates inside the tube and is connected to agitators 45, 46 which are also driven from the tractor power shaft through gearing so arranged that the agitators rotate at a slower speed than the spinner. The agitators may also rotate in the opposite direction to the direction of rotation of the spinner. The drive from the tractor power shaft comprises a socket 122 fitting over the shaft 104 and connected to a telescopic shaft 124, 125 through rubber connectors 123 126. The socket 122 is removed from the shaft 104 by compressing a spring 127. The machine is connected to a three point linkage in the tractor and a special upper link 106 is provided having a cross-piece 111 which co-operates with a hook 110 on a link 109 to hold the machine in the working position. A member 128a is provided with a slot which engages the socket 122 so that the drive must be disconnected before lowering the machine to the ground where it is supported on feet 108. A removable spike 29 is mounted on a member 28 in the mouth of the hopper and is used for opening fertiliser bags. In a modification the machine is mounted on ground wheels which drive the spinner 40 and agitators 45, 46.
Patent GB-1306239-A (GB)
IPC: F24H3/04
Filed: 1970-07-21
Abstract: 1306239 Unit heaters CALOR 21 July 1970 [30 July 1969] 35306/70 Heading F4V [Also in Divisions H1 and H5] In an electric heater which acts partly by radiation and partly by convection a fan causes a flow of cool air which is mixed with the air convectively heated by the heating element. A housing 10 is divided into two sections by the vertical wall 31 of a reflector 30 and cool air, drawn in by the blowing unit 20, passes upwards behind the reflector and through apertures 35, in the upper part of the reflector, so as to mix with hot air rising from the heating resistor 42 which is in front of the reflector. The heated air then passes out through a grille 50 over an aperture in the top of the body. The sides of the reflector are divided into narrow, horizontal sections 37a, 38a each of which carries an insulator 39 and the heating element 42, in the form of a tape, extends in zig-zag formation between these, in front of the reflector, so that the resihence of the sections 37a, 38a, maintains the element taut. A control unit 60 includes a bimetal operated thermostatic switch with an adjusting spindle 64, a gravity-operated switch, which breaks the heating circuit if the heater is tipped over, and an indicator lamp 80 which is illuminated when the heater is switched on, the lamp circuit being controlled by a cam 77 on the control spindle 64. The grille 50 extends downwards from the hot air outlet to cover the aperture in front of the heating element.
Patent GB-765469-A (GB)
Title: A process for separating benzene hydrocarbons and napthalene from gases containing the same
IPC: C10K1/08
Filed: 1953-12-18
Abstract: Benzene hydrocarbons and naphthalene are continuously separated from gases such as coal distillation gases by cooling to about 3 DEG  C. by indirect heat exchange with cold gas from which the benzene hydrocarbons have been removed in the lower part of a washing column, then passing the gas into direct contact with a solvent, further benzene hydrocarbons rich in solvent naphtha and simultaneously into contact with a circulating solution of calcium chloride, the solvent and calcium chloride having a temperature less than 0 DEG  C. and then washing in the upper part of the washing column with a cold solvent naphtha.  Preferably the gas is first indirectly cooled in by cold water to remove the major part of the solvent naphtha and naphthalene, and is then further cooled so that a practically naphthalene-free condensate is produced consisting substantially of the lower boiling benzene hydrocarbons and then the treated gas is practically completely freed from benzene hydrocarbons by further direct cooling by means of calcium chloride solution and simultaneous washing with solvent naphtha, the condensate from the first cooling stage, and the discharge from the combined cooling and washing stage being passed to a distillation plant in which the solvent naphtha required for the washing stage is separated as an intermediate fraction between a benzene hydrocarbon fraction and a naphthalene fraction and the solvent naphtha separated off is forwarded to the combined cooling and washing stage.  In an example, the benzene hydrocarbon content is reduced from 30 to 0.1 g/Nm3 and the naphthalene content reduced from 0.8g/Nm3 to zero.
Patent GB-977018-A (GB)
Title: Improvements in structural truss and joint for use therewith
IPC: E04C3/18
Filed: 1961-10-02
Abstract: 977,018. Carpenters' joints. M. R. FELLMAN. Oct. 2, 1961 [Oct. 5, 1960], No. 35470/61. Heading A4W. [Also in Division E1] Timber roof trusses have multi-toothed joints wherein the crests of the teeth generally run vertically (although they may be formed at an angle to the vertical on the heel joints), and where the joints may be dry or glued. The interengaging portions of the truss members may have a sawtooth configuration (Figs. 4 and 6, not shown, 9, 10 and 11, not shown), a castellated configuration (Fig. 7, not shown), or a wave-form configuration (Fig. 8, not shown).
Patent GB-879000-A (GB)
Title: Battery charging system
IPC: H02J7/14
Filed: 1959-10-22
Abstract: 879,000. Automatic voltage control systems. NOVI S.A. Oct. 22, 1959 [Feb. 11, 1959], No. 35805/59. Class 38 (4). A battery charging system comprises a battery 1 charged from an alternator 2 having a permanent magnet field by way of a rectifier 3 and a transductor 11 which is controlled in accordance with the battery voltage by means of a voltage regulator 8 followed by an amplifier 19. The regulator 8 comprises a Zener diode and the amplifier 9 transistors. The regulator 8 may alternatively be of a mechanical type, a carbon-pile type or one in which resistors are brought into or taken out of circuit.
Patent GB-487948-A (GB)
Title: Improved feeding arrangements for machines for treating rubber
Filed: 1936-12-31
Abstract: 487,948. Machines for calendering, extruding, and otherwise treating rubber compositions. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BOWYER, E., and SMITH, G. M. Dec. 31, 1936, No. 35840. [Classes 70 and 87 (ii)] A device for feeding rubber composition to machines for calendering, extruding, or otherwise treating them comprises a feeding box, hopper or a similar enclosure and a pressure member floating with contact pieces, between which the material is fed, on the excess of the material accumulating in the inner part of the box and acted on continuously by a force which causes them to press the composition inwards until it is taken up by the machine. Figs. 1 and 2 show an extrusion machine provided with a feeding device of the kind; the floating pressure member comprises a frame 9 carrying a pair of spaced rolls 11 pressed on to the composition in the hopper 12 by springs 8 and between which the composition is fed in the form of a strip 12 from a coil 5. The Specification also describes a calendering-machine provided with a similar feeding device.
Patent GB-356585-A (GB)
Title: Improvements in hose supporters
IPC: A41F11/12
Filed: 1930-11-28
Abstract: 356,585. Hose suspender fastenings. JENSEN, C. A., 77, Chancery Lane, London. (Harvie Manufacturing Co. ; 729, North Washington Avenue, Bridgeport, Connecticut, U.S.A.) Nov. 28, 1930, No. 35894. [Class 141.] A device for securing the adjustable webbing 7 of a hose suspender comprises a loop member 10 against one bar 9 of which the webbing is gripped by a member secured to the free end of the webbing. Figs. 1 and 4 show this member 11 of U -form, one limb being longer than the other. The member is clamped on the free end of the webbing 7 and its shorter limb may have teeth 15 which enter the webbing. The edge of the longer limb is outwardly bent to provide a lip 13, which may be plain or toothed and serves to clamp the portion 16 of the webbing against the bar 9. In a modification, Fig. 6, the free end of the webbing is clamped between the main portion of a flat plate 23 and tongues 22a stamped out therefrom. The edge of the plate clamps the webbing 21 against the bar 20 of the loop member.