baber/WOPTO huggingface dataset:
Patent GB-600406-A (GB)
Title: An improved suspension for curtains
IPC: A47H1/104
Filed: 1944-11-09
Abstract: 600,406. Curtain-rail brackets. COLLINS, M. Nov. 9, 1944, No. 22018. [Class 52(v)] An angularly adjustable bracket which forms an intermediate support for a slotted curtain rail 1 and which may be secured to a vertical, horizontal or intermediate surface, comprises a slotted, tubular portion 3 which embraces the curtain rail 1 and has a projecting, slotted web 4 which slidably engages in a bifurcated web 8 on the bracket attachment plate 6 and is secured in the adjusted position by a pin carried by the web and passing through the arcuate slot in the web 4.
Patent GB-731895-A (GB)
Title: Improvements relating to plug cocks
IPC: F16K5/04
Filed: 1953-08-11
Abstract: 731,895. Rotary plug valves. A.P.G. VALVE CO. (PROPRIETARY), Ltd. Aug. 11, 1953 [Aug. 27, 1952; Oct. 24, 1952; Aug. 4, 1953], No. 22109/53. Class 135. In a rotary cylindrical, conical or spherical plug cock, the plug 19 has a segmental slot 20 to interconnect the inlet 14 and outlet 15 in the open position and comprises also a flexible, resilient segment, e.g. of rubber, which is so exposed to fluid pressure in the closed position of the cock that the segment is pressed into sealing contact with the part of the body surrounding the outlet port. As shown, the resilient segment is part of a sheath 21 which is discontinued where it passes over the slot 20 and is secured to the plug only in the zones above and below the slot so that inlet pressure has access to a space 23 between the sheath and plug. The plug is retained in the body by a lower flange 31 and a cap 27 formed integrally with a handle 26, the flange and cap compressing the sheath axially to provide a seal. The edges 25 where the sheath is discontinued are chamfered so that fluid pressure assists in sealing. In a modification, the plug has a radial drilling to connect the inlet with the back of the resilient segment which may be housed in a recess in the plug instead of being part of a sheath.
Patent GB-354040-A (GB)
Title: Improvements in or relating to power transmission by electromagnetic means
IPC: H02K51/00
Filed: 1930-07-23
Abstract: 354,040. Electromagnetic clutches ; transmitting mechanical power. MURPHY, J., Coolfadda Mills, Bandon, Co. Cork, and BRENNAN, J., 80, Highfield Road, Rathgar, Co. Dublin. July 23, 1930, No. 22244. [Classes 35 and 38 (iv).] In an electromagnetic power transmission apparatus comprising an armature and a field magnet, the speed ratio of the driving and driven shafts is rendered automatically variable by mounting one or both members of the clutch upon spiral or screw thread mountings so as to be axially movable. In Fig. 1, the armature a is screw-threaded at e on the driving shaft b and can move axially against a spring f bearing against a sleeve b<11> fixed to the shaft. If the shaft b accelerates in the direction of the arrow, the armature will lag and will move to the right so that the field effect thereon is varied. The driven field magnet c accordingly will tend to run at constant speed. The field winding and armature are connected in series. In a modification, Fig. 4, the driving shaft b is screw-threaded at g in an armature a and the driven shaft d is threaded in a second armature a<1>, both threads being left-hand. Springs h, k normally maintain the armatures in the weak field positions. Acceleration of the shaft b in the direction of the arrow causes the armature a to move into the stationary field c, and the armature a<1> moves into the field c<1> when exerting its maximum torque on the shaft d. To enable the armature a<1> to move axially in either direction of rotation, the shaft d<1> is threaded in a sleeve l which is itself oppositely-threaded in the armature. The spring k may react on the armature a instead of on the fixed collar on the shaft d, in which case the armature a is fully positioned in the field c and the spring h and screw-thread g are arranged for inverse operation. The armature a also may be mounted on a slidable key so that when in the maximum field it will be moved outwards by inward movement of the armature a<1>. The armatures and field coils are all connected in series and a double pole change-over switch is provided to reverse the current through the armature a<1> whereby the driven shaft can be started, stopped or reversed by means of the switch.
Patent GB-837636-A (GB)
Title: A method of forming blades for use in fluid flow machines
Inventor: ASHWORTH PERCY GEORGE
IPC: C22F1/18
Filed: 1957-07-13
Abstract: Gas turbine blades are made from a titanium alloy of the following composition in per cent by weight: .Al.0.5-2.5 .Mn.0.5-2.5 .C.up to 0.1 .Fe.up to 0.2 .H.up to 0.13 .Ti remainder..
Patent GB-1168358-A (GB)
Title: A Process for the Production of a Semiconductor Unit
IPC: H01L21/00
Filed: 1967-08-25
Abstract: 1,168,358. Soldering. SIEMENS A.G. 25 Aug., 1967 [3 Dec., 1966], No. 22405/68. Divided out of 1,168,357. Heading B3R. [Also in Division H1] A semi-conductor unit consists of a -semiconductor body containing a PN junction and a pair of electrodes each consisting of a metal layer coated on both-surfaces with lead or a lead-based alloy, the electrodes being soldered by the lead to the semi-conductor, the exposed edges of the semi-conductor body being lacquer-covered, and a pair of terminals being soldered to the electrodes. The invention is a process for producing such a unit in which the terminals are soldered to the electrodes by dipping an assembly comprising the terminals held in contact with the electrodes into a tin-solder bath. The lead on the outer surfaces of the electrodes may but need not be removed, by immersing the lacquered body-plus-electrode structure into a tin bath to dissolve away exposed lead, before the terminal-soldering step. Such removal of lead prevents the subsequent formation of a lead-tin eutectic as the terminalelectrode solder bond, and should therefore be performed if the unit is likely to be used at temperatures above the lead-tin eutectic temperature.
Patent GB-614770-A (GB)
Title: Improvements in the scouring of wool
IPC: D01C3/00
Filed: 1946-07-27
Abstract: Wool is scoured with an aqueous solution comprising soda ash, sodium bicarbonate and soap, and the ratio of sodium carbonate to sodium bicarbonate is maintained at all times within the range 1 : 0.5 to 1 : 2.  When treating shorn or other acidic wools, the addition of caustic soda is necessary during the scouring to convert the excess of bicarbonate formed back into carbonate, but with a "pulled" wool, where bicarbonate is not formed as an incident of the scouring as the wool is alkaline from pretreatment with lime, the addition of bicarbonate is necessary in order to keep the ratio within the range indicated.
Patent GB-461193-A (GB)
Title: Improvements in and relating to supply and switching systems for electric heating apparatus
IPC: F24C15/10
Filed: 1935-08-09
Abstract: 461,193. Control systems for heating resistances. DIAMOND H SWITCHES, Ltd., and TURNER, C. A. Aug. 9, 1935, No. 22492. [Class 38 (iv)] Switching control.-In electric heating-apparatus arranged for three degrees of heating, three or two element resistors may alternatively be used by providing a rotary switch of the type set forth in Specification 179,513, [Class 38 (v)], having its contacts modified and arranged so that, by a short-circuiting connection on the switch terminals three degrees of heat are obtained in the same switch positions with a two element resistor. Fixed contacts 1 ... 6 are provided on the switch, contacts 1 and 2 being connected to the mains, contacts 2, 4, 5 and 6 being connected to plug sockets d<1> ... e<1> which receive contact plugs on the resistor a, b, c. The contacts are arranged in two tiers, contacts 6 and 2 being arranged in a different plane from the remaining contacts and co-operating with a separate switching member on the rotary shaft. The radial lengths of the fixed contacts are arranged so that in the high heat position contacts 1, 4 and 5 are connected together and also contacts 6, 2 and all three elements of a three element resistor are connected in parallel. In the medium heat position contacts 1 and 5 only are connected so as only element a is in circuit, and in the low heat position contacts 1, 4, 3 are connected together, all the elements being then in series. Contact 3 is left unconnected to any external circuit. When a two element resistor is plugged in to the sockets d<1>, f<1>, g<1> and contacts 3 and 6 are short-circuited by a strip or by a switch, the same switch positions and contact connections provide three degrees of heat with all elements in parallel, one element only and all elements in series.
Patent GB-303914-A (GB)
Title: Improvements in or relating to milking sheds and apparatus
IPC: A01K1/12
Filed: 1927-08-26
Abstract: 303,914. Hosier, A. J. Aug. 26, 1927. Cow-milkers.-A shed 1 mounted on wheels 2 and having a roof 3 is divided by partitions 7 into stalls in which the cows stand while being milked and fed, a collapsable shelter 8 extending over the ends of the stalls to cover the cows. Each stall is provided with a door 9 adapted to slide in vertical guides 10 and to the lower end of each door is secured a rope 11 that passes over guides 12 and terminates in a hand grip 13. The rope is so arranged that it engages an extension 15 on a manger 16 pivoted at 17, the manger being moved into idle position, clear of the door, when the door is raised by pulling on the rope. Food, such as cake, is supplied from a hopper 18 to the manger by means of a measuring device actuated by a handle 33. An engine hut 4 mounted on wheels 5 is connected to the shed 1 by a drawbar 6. An engine 19 in the hut drives the suction pump 20 and pulsator-actuating shaft 23 of a milking apparatus. The suction pump is connected through a pipe 21 to the teat cups and another pipe 26 in communication with the teat cups conveys the milk to a container. The pipes 21, 26, are preferably nickel plated. When the shed is to be transported the doors 9 are raised a little from the ground.
Patent GB-517619-A (GB)
Title: Improvements in or relating to parallel slide valves
IPC: F16K39/04
Filed: 1938-07-28
Abstract: 517,619. Valves. BABCOCK & WILCOX Ltd., and GIBSON, J. H. July 28, 1938, No. 22527. [Class 135] A parallel slide valve particularly adapted for controlling steam at high temperatures has two slides 2, 3 biassed apart by a spring 4 and is arranged so that the movement of either of the slides away from its seat closes an auxiliary duct arranged to connect the valve casing with the one side of the main valve. In the form shown in the Fig. the slides have wear-resisting faces co-operating with removable seats 14, 15 held in place by screwed rings 32, 33, and have telescopic guide bosses 5, 6 engaged by a ring 16 secured to the actuating spindle. A clip 18 with hooked ends 19 prevents undue separation of the slides. Within the guide bosses the slide 3 is formed with a boss having a removable face 11 adapted when moved into engagement with a removable seat 12 secured to a boss on the other side to close a passage 9 and so interrupt communication between the intermediate chamber 26 and one side of the valve. A simplified form is described adapted for use as a by-pass valve, the casing of the by-pass valve being connected to that of the main valve in addition to the conduits connecting the respective inlet and outlet conduits.
Patent GB-1387515-A (GB)
Title: Bevel gear differentials
IPC: F16H48/08
Filed: 1973-05-12
Abstract: 1387515 Differential gear MINSKY TRAKTORNY ZAVOD 12 May 1973 22723/73 Heading F2D Tooth loadings on the bevel gears of a vehicle differential are equalized by a ring 11, surrounding and supporting the outer faces of the bevel planets 10 internally or externally of the rotating housing 1, and radially displaceable by the drive thrust on the planets to permit a more heavily loaded planet to move outwards and reduce its loading whilst at the same time moving the opposite planet (four shown) radially inwards into deeper mesh to increase its loading. Bearing washers 13, separate or integral with the ring, are arranged between the the ring 11 and the planets 10, and displacement of the ring 11 in the direction of the shaft axis a is prevented. In Figs. 3 and 4, not shown, the ring is outside the housing and receives planet thrust through washers and distance pieces in the form of bushings, sliding blocks, or separate blocks on each axial side of the spindles. The depth of tooth mesh is adjusted by a wedge (19) between the ring and housing and axially adjustable by a screw (20). In Fig. 11, not shown, the ring, again inside the housing, is built up of four arcuate segments (35) and four planet engaging washers (34) with tapered sides engaging the segments. A radial screw (37) in the housing adjusts tooth mesh. This arrangement permits relative circumferential movement which contributes to load equalization. In Fig. 13, the ring is outside the housing and is resilient and of polygonal form.
Patent GB-424204-A (GB)
Title: Combined folding perambulator and suit case
IPC: B62B7/10
Filed: 1933-08-16
Abstract: 424,204. Folding baby - carriages ; portmanteaux. NORTHCOTT, H., 6, Leamington Park, North Acton, London. Aug. 16, 1933, No. 22836. [Classes 108 (i) and 108 (ii)] In a combined perambulator and suitcase in which the case forms the integral body part of the perambulator and into which the perambulator parts may be folded when out of use, collapsable guard panels are mounted along the sides of the case and are raised automatically on opening the perambulator. The body 5 is provided with a two-part lid 6, 7 adapted when open to serve as a canopy and a handle 11 pivoted at 12 and provided with a latching arrangement 13 .. 15, the handle being connected by links 16 to toggle arms 17 whereby guard panels 18 are caused to rise from the double walls of the body when the handle is moved into operative position. The wheels 24 are mounted on brackets 23 carried by bars 22 connected to corner brackets 25 by coiled springs 26 to give a spring suspension, one or more of the coiled springs being provided with means for urging the wheel brackets into the inoperative position beneath the body. The wheels on each side are simultaneously folded by means of a two-armed lever 28 connected by links 30 to cranks 31 on the bars 22, latching means comprising a slot into which an extension of the lever 28 projects being provided. The device when in folded position is adapted to contain clothes &c.
Patent GB-1102815-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: ACKROYD RONALD TUNSTALL
IPC: G21C7/28
Filed: 1964-06-02
Abstract: 1,102,815. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 25 May, 1965 [2 June, 1964], No. 22862/64. Heading G6C. In a fast reactor, control is effected by displacement of a solid reflector which surrounds the core and which is immersed in an aqueous liquid reflector at the thermodynamic supercritical pressure. The solid reflector is formed of stainless steel blocks which are movable by means of a linkwork manipulated through the pressure vessel wall by an external drive. The reactor and coolant circuit, also supercritically pressurized, are enclosed within a vessel, itself surrounded by the pressure vessel. The fuel is a mixture of plutonium and uranium dioxides. The solid reflector may be in the form of blocks which mutually engage to form an iris assembly round the core or it may be a long sheet wrapped round the core in a spiral, the turns of which can be moved laterally relatively to the core.
Patent GB-943073-A (GB)
Title: Refrigerator
IPC: F25D17/04
Filed: 1962-06-14
Abstract: 943,073. Refrigerators. GENERAL MOTORS CORPORATION. June 14, 1962 [June 26, 1961], No. 22884/62. Heading F4H. A refrigerator comprises a freezer compartment 14, an evaporator 16 connected to a refrigerant compressor, an air valve 44, and an electric source of heat 30 energizable when the compressor stops. As shown, whenever the evaporator is cold, air leaving the evaporator enters the freezer 14 via opening 42 controlled by damper 44. The damper is controlled by an actuator 46, e.g. a bi-metallic element having one end mounted on the first two passes of the evaporator. During operation of the compressor the evaporator temperature is low enough to cool the element and deflect it sufficiently to open the damper 44. A thermostat 26 stops the compressor when the temperature of the evaporator reaches 0 F. The evaporator then starts to warm up which causes the element 46 to close the damper 44 and prevent relatively warm air entering the freezer so that the temperature of the evaporator can safely rise to cause melting of all frost. A lamp 30 is energized when the compressor is de-energized and the heat from the lamp rises and both helps to increase the circulation of the relatively warm air in the storage compartment 12 and adds heat to the circulating air. The compressor starts again when the evaporator temperature rises above freezing point e.g. 34 F. The lamp is also energized when the refrigerator door is opened.
Patent GB-960162-A (GB)
Title: Improvements in or relating to slicing machines
Inventor: MURRANT KENNETH BRUCE
IPC: B26D7/06
Filed: 1961-06-24
Abstract: 960,162. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO. Ltd. June 21, 1962 [June 24, 1961], No. 22930/61. Heading A4C. The sliding pusher plate 15 of a revolving knife-reciprocating carrier 10 type slicing machine is pivotally mounted about a transverse axis so that when fully retracted it can be turned anticlockwise through approximately a right-angle and pushed into a non- obstructive, stowed position underneath and parallel to the carrier floor 11 (shown horizontal, but tilted in use). The pusher plate 15 is secured to a bracket 17 which is hingedly connected to a block 20 sliding on a bar 31 and further guided by an angle bracket 35 forked at 36 on either side of a flat guide bar 32. The angular settings of the pusher 15 are determined by a pin 22 on the bracket 17 engaging projections 21 on the block 20 and by spring-pressed balls or plungers 23 and complementary holes. Longitudinal movement of the pusher 15 is determined by the downturned tails 33 of a bracket structure 34 underneath supporting L-frame 30 of the carrier 10, a pillar 12 projecting from the frame 30, serving to fix the carrier to a reciprocable carriage.
Patent GB-360363-A (GB)
Title: Improvements in and relating to advertising and like devices
IPC: G09F19/18
Filed: 1930-07-30
Abstract: 360,363. Advertising clocks. BRIGGS, G., 124, Sutherland Avenue, Maida Vale, London. July 30, 1930, No. 22965. [Classes 3 (i) and 139.] An advertising device is adapted to exhibit simultaneously an advertisement &c. and an indication of the time, both being carried by a film the movement of which is controlled by clockwork mechanism. Fig. 3 shows a form in which a separate advertisement and time indication are carried in each picture space of an endless film c which is carried round a series of rollers within a container d and moved forward every half minute through a projector b, the beam from this projector being reflected by a mirror b<2> to form an image on the screen a<1>. Movement of the film is controlled by a clockwork mechanism (not shown) in which a 60-toothed wheel is revolved once per minute, the teeth of this wheel operating contacts whereby the electromagnet g, Fig. 7, is energized once per second. This electromagnet operates a 60-toothed ratchet wheel g<7> by means of a pawl g<5>, thereby causing diametrically opposite pins k mounted thereon to close the contacts k<1>, k<2> every half minute. These contacts are in circuit with an electromagnet l, Fig. 5, the armature of which when operated closes the contacts l<6>, l<7> and starts up the motor b<1> driving the projector, Fig. 3 ; at the same time the detent l<3> is withdrawn from the slot l<9> in a wheel l<4> driven by the motor, which runs until the wheel l<4> has made one complete revolution, after which the detent l<3> re-enters the slot l<9> and breaks the circuit, the film meanwhile having been advanced by the required amount. In an alternative form a solenoid is operated every half minute, the armature of which carries a roller round which the film is passed ; the film is thus drawn downwards when the solenoid is operated, the return stroke rotating a sprocket through a ratchet and panel mechanism to take up the loop of film. Means may also be provided for indicating the passage of seconds. Fig. 7 shows a disc h which rotates with the ratchet wheel g<7> and carries stencilled numbers 1 to 60 round its periphery, also a number of coloured windows h<2>. As the disc revolves, images of the numbers are projected one by one on to a screen a<2>, Fig. 3, by the lamp m<1> and objective m<2>, other lamps also shining through the windows h<2> to produce varying colour effects. All these lamps are extinguished during the actual movement of the disc h by the opening of the contacts j<1>, j<2>, which is effected every time the magnet g is energized. The disc h may be dispensed with, in which case the passage of seconds may be indicated by a circle of 60 small lamps round the main screen a<1> which light up in turn. Automatic switches may be provided for cutting put the illumination during certain periods, also switches for operating the projector motor or 'solenoid for the purpose of setting the device to the correct time. A further modification comprises the use of a separate screen remote from the rest of the apparatus.
Patent GB-1134026-A (GB)
Title: Ice warning device
IPC: E01F9/40
Filed: 1967-05-17
Abstract: 1134026 Temperature indicators W DABISCH 17 May 1967 [17 May 1966] 23001/67 Heading G1D [Also in Division G2] An ice warning device for road safety purposes comprises Christiansen optical filter 1, the colour of the spectral transmission of which changes within the region of the freezing point of water and a reflector 2 for light from vehicle headlights, which has passed through the filter. The Christiansen filter comprises powdered glass disposed in a fluid medium and this acts as a dispersion filter unless the filter is at the temperature at which the refractive indices of the glass and the fluid are the same when coloured light having a certain bandwidth in the spectrum will pass through the filter. The colour of this light changes over a temperature range around the above mentioned temperature. Sintable materials for the filter are given as examples in the Specification and the arrangement is such that the spectral transmission of the filter and therefore the colour of light reflected, after passage through the filter, back to the driver of the vehicle at the freezing point of water, is of a distinctive colour which is recognizable by the driver. A glass filter 3 may be disposed in front of the filter 1 and this is arranged to be of the same colour as that of the light transmitted by the filter 1 at the freezing point. In this case the filter will appear black at all temperatures other than at the ice point. Coloured glass may be arranged around the filter 1 to present a distinctive pattern or even wording to the driver of a vehicle under icing conditions. The reflector 2 may be of the kind normally used in vehicle reflectors as shown or may be a convex mirror disposed to reflect a divergent beam back towards the vehicle, or two plane mirrors at right angles giving a horizontal reflected beam. These plane mirrors may also be replaced by convex mirrors if desired.