baber/WOPTO huggingface dataset:
Patent GB-729958-A (GB)
Title: Improvements relating to automatic control mechanism for defrosting refrigerator evaporators
IPC: F25D21/00
Filed: 1952-12-17
Abstract: 729,958. Valves. GENERAL ELECTRIC CO. Dec. 17, 1952 [Dec. 19, 1951], No. 31998/52. Class 135. [Also in Group XXXVII] A refrigerator control comprises a pivoted operating lever 8, Fig. 2, movable between two positions for starting and stopping refrigeration at predetermined maximum and minimum temperatures, a temperature-responsive element 18 engaging the arm, a spring 20 opposing the element, and an interfering member 24 movable by a latch 39 to oppose movement of the arm and urged by a spring 46 to an inoperative position. The lever 8 is in two parts 9, 10, a spring 11 causing lever part 10 to snap across from one position to the other to operate switch contacts to stop and start the refrigerating unit or a valve closure member 4 controlling the supply of refrigerant to the evaporator. The part 10 terminates in a yoke 7 and the valve stem carries a permanent magnet 6 which is attracted towards the adjacent arm of the yoke. The latch 39 is engaged by a cam 50 rotated, e.g. by a timer, and when it is released by the tip 52 of the cam it pulls the member 24 to its vertical position so that when the valve is subsequently closed, it cannot be re-opened until the force of an additional spring 33 is overcome. The temperature thus rises to defrost the evaporator and when it reaches an abnormally high value, predetermined by adjustment of the spring 33, the element 18 moves member 24 axially and opens the valve, whereupon the latch passes through a slot 43, Fig. 5, in the member 24 which is moved to its inoperative position by spring 46 when the lever 8 snaps the valve closed to release the end of the member. In its inoperative position, the member is aligned with a slot 24a in the lever part 9.
Patent GB-955861-A (GB)
Title: Improvements in spiral staircases
IPC: E04F11/032
Filed: 1961-09-07
Abstract: 955,861. Spiral staircases. J. TAYLOR. Oct. 31, 1962 [Sept. 7, 1961], No. 32091/61. Heading E1V. A spiral staircase comprises a central vertical tube or rod, with treads located on it by sleeves b<SP>1</SP> screwed to the tube or rod, and having treads b welded thereon, with radial and transverse stiffening plates b<SP>2</SP> and b<SP>3</SP> under each tread. The handrail D is supported on inverted V-shaped balustrades d.
Patent GB-911898-A (GB)
Title: Improvements in or relating to slide rules
IPC: G06G1/04
Filed: 1960-09-19
Abstract: 911,898. Slide rules. LAI KING-YAN. Sept. 19, 1961 [Sept. 19, 1960], No. 32173/60. Class 106 (1). A slide rule has a stock 10 formed as a shaped sheet having a central channel 13 and a pair of side strips which extend outwardly from the top of the channel walls and which are reflex to define a pair of slots 15. The slide 11 is also formed as a shaped sheet having a pair of side strips 16, which are arranged to be received by the slots 15, and a raised central slip 17 which presents a surface substantially flush with the top surface of the side strips of the stock. A transparent cursor 12 with end portions 19 and a finger stop 20, and the normal A, B, C and D scales are provided.
Patent GB-851183-A (GB)
Title: Arm and body rest for use by sick people and invalids
IPC: A61G7/07
Filed: 1957-10-15
Abstract: 851,183. Bed-rests. BARBER, G. Oct. 13, 1958 [Oct. 15, 1957], No. 32225/57. Class 52(2) A back- and arm-rest for use with a bed has a U-shaped base 4 having integral therewith or fixed thereto a U-shaped supporting member 5 of lever width and with arm-rests 1 and a back-rest 6. In a modification a head-rest 8 consists of a padded board mounted on a rod 9 which passes through spaced eyes 11, 12 on the back-rest and has holes 14 to'allow fixing of the rod in a selected position by means of a pin 10.
Patent GB-841058-A (GB)
Title: Improved mineral food supplements for sheep and cattle and licks incorporating such supplements
IPC: A23K20/26
Filed: 1956-10-23
Abstract: A food supplement for sheep and cattle contains dietary trace elements, e.g. in the form of the sulphates of iron (ferrous), manganese, copper, cobalt, zinc and boron, a source of calcium, e.g. calcium carbonate, sulphate and phosphate, and between 20 and 70% by weight of free sulphur.  Magnesium sulphate, magnesium carbonate, potassium sulphate, potassium iodide, pine resin, licorice, anise oil and molasses may be added.  A salt lick containing at least 10% of free sulphur is made by mixing the food supplement with salt.
Patent GB-1380986-A (GB)
Title: Apparatus for slidably mounting radial fins on a plurality of stationary tubes placed in parallel side by side
IPC: B21D53/08
Filed: 1972-07-11
Abstract: 1380986 Endless pusher-conveyers GEA LUFTKUHLERGESELLSCHAFT HAPPEL GmbH & CO KG 11 July 1972 [6 Aug 1971] 32331/72 Heading B8A Apparatus for slidably mounting radial fins (not shown) on a plurality of stationary tubes (not shown) is generally the same as that described and claimed in Specifications 1,380,984, 1,380,985 and 1,380,987, except for the fact that, instead of there being a single support track 1 for the pushers 4 (which engage the fins), there are two such tracks 1 laterally spaced from each other.
Patent GB-1150776-A (GB)
Title: Pressure Vessel
IPC: F15B1/20
Filed: 1966-07-19
Abstract: 1,150,776. Discharging liquids by gaseous pressure; hydraulic accumulators. OLAER PATENT CO. July 19, 1966 [July 20, 1965], No.32336/66. Headings F1P and F1R. A device for discharging liquid under pressure, e. g. oil into a transformer or a jack operating switch gear, comprises a container 11 divided into a liquid chamber and a gas chamber by a diaphragm 36 of substantially non-stretchable material, e.g. nylon, carrying a valve member 43 for closing the liquid outlet 13 when the liquid chamber is empty, the valve member being biased to its open position by a spring 59 having spaced coils b to provide a shock absorber action. Gas enters the gas chamber through a passage 33. The diaphragm is non- elastic and conforms to the shape of the container when the liquid chamber is empty. The liquid chamber is filled by supplying liquid under pressure through outlet 13.
Patent GB-521008-A (GB)
Title: Improvements in or relating to thermal insulating materials
IPC: C04B28/26
Filed: 1938-11-08
Abstract: 521,008. Fibrous compositions. STILL, W. G. Nov. 8, 1938, No. 32446. [Class 70] Heat-insulating material is formed by bonding together mineral wool fibres formed from natural rock, slags, glass &c., by precipitation between the fibres of an insoluble silicate, the precipitation taking place in presence of a protective colloid such as starch, dextrin, casein, glue, gelatine &c. Mineral wool is mixed with a starch gel, obtained by heating starch in water and adding a small proportion of sodium hydroxide, and containing calcium or magnesium chloride, and a dilute solution of sodium or potassium silicate is added while agitating. Liquid is filtered off and the product dried and moulded.
Patent GB-1198238-A (GB)
Title: Improvements in or relating to Shaft Furnaces
Inventor: PANTKE HEINZ-DIETER
IPC: C21B13/02
Filed: 1969-06-27
Abstract: 1,198,238. Discharging shaft furnaces. HUTTENWERK OBERHAUSEN A.G. 27 June, 1969 [10 July, 1968], No. 32502/69. Heading F4B. A rectangular shaft furnace for the reduction of particulate iron ore with a reducing gas comprises a charging hopper 2, a ridged gas distributer 6 disposed parallel to the longer walls of the shaft above a hopper discharge base with walls 8 parallel to the distributer 6 tapering to a slot 5 corresponding in width to said distributer, and a discharge plate 10 over which reciprocates one or more push/pull beams 11. The breadth of the gas distributer is 1/5-1/3 preferably , that of the wall at right angles to it, and the ridge taper angle lies between 40 and 50 degrees. Pipes 7 supply gas to both ends of the distributer. The walls 8 are inclined at 20-40 degrees to the vertical. Each beam 11 has a stroke amplitude of 20- 80%, preferably 30-50%, of the breadth of slot 5, and the distance between said slot and plate 10 is 1-2 times that of the beam height. The hopper 2 has interlocked slide valves 12 and 13 and an internal ridged distributer 14 with hinged flaps as in Specification 1,198,240.
Patent GB-1502429-A (GB)
Title: Production of granular solids from slurries or liquids containing solids in solution or suspension
IPC: B01J2/16
Filed: 1974-07-23
Abstract: 1502429 Producing granular solids by evaporation HEAD WRIGHTSON & CO Ltd 9 July 1975 [23 July 1974] 32521/74 Addition to 1119514 Heading BIB [Also in Division F4] In the process of Parent Specification, the ordered motion of hot particles is effected by a stream of heated high velocity air or gas which is at a higher temperature than the fluidising gas stream, the ratio of the flow rates expressed as weight per unit time of high velocity gas to fluidising gas being in the range of 0.1:1 to 0.4:1. 1/3-1/5 of the total heat may be provided by the high velocity gas, the rest being provided by the fluidising gas, and the bed temperature may be below boiling point of the liquid or slurry being evaporated. The apparatus of Specification 1304253 may be used.
Patent GB-1061382-A (GB)
Title: Improvements in and relating to vehicle security systems
Inventor: HARDING EDGAR CEDRIC
IPC: G08B13/22
Filed: 1962-08-24
Abstract: 1,061,382. Intruder alarm systems. ALARMATIC DEVICES Ltd. Aug. 23, 1963 [Aug. 24, 1962; Jan. 28, 1963], Nos. 32558/62 and 3443/63. Heading G4N. [Also in Division F11 A vehicle security system includes a first relay R1 which when operated prepares the energization circuit for a second relay, R2 controlling the alarm device 38. In operation, " scrambling " the code selector switch 2 connects the negative supply to one side of relay R1, the positive supply being connected to the other side by switch 10 when the driver's door is opened. Relay contact 12 and a second switch 40 on the driver's door close energizing thermal delay 42 so that unless the door is reclosed within a predetermined time relay R2 will operate to sound alarm horn 38. Once energized, relay R1 holds in over contact 20, and opening of other vehicle closures closes one of switches 22, 24, 26 and causes relay R2 to operate instantaneously. Such operation may however be delayed in the case of switch 26 by operating a delay button 44. Once sounded, the alarm is cancelled by selecting the correct code on switch 2. This releases the relays and completes a circuit via contact 18 to an indicator 48 which remains energized until the switch 2 is " rescrambled." Once relay R1 has operated, the vehicle is immobilized by contact 16 which opens to close a fuel valve or break the ignition circuit, Fig. 2 (not shown), of the vehicle. An emergency button 50 is provided for operation of the alarm manually. In a modification, Fig. 3 (not shown), the thermal delay 42 is replaced by a manual " holdout " button (60) which must be held operated while the driver's door is open to prevent operation of the alarm. A key switch 66 may be operated when the vehicle is to be left unattended for long periods to cut out the thermal delay.
Patent GB-392237-A (GB)
Title: Process for producing a colour matrix behaving like oil
IPC: C09D5/02
Filed: 1931-11-24
Abstract: Water-in-oil emulsions for use as paint vehicles are prepared with the aid of a distillate of beechwood tar, collected between 250 and 350 DEG  C.  The fraction is allowed to settle, the clear supernatant layer, mixed with alkali such as caustic soda solution, is added in small proportion to water, and the water is mixed with drying oil or varnish at 20-30 DEG  C.  The product is miscible with drying oils.
Patent GB-730809-A (GB)
Title: Improvements in methods of and apparatus for controlling vapour superheat temperature
IPC: F22G5/00
Filed: 1952-12-23
Abstract: 730,809. Fluid-pressure servomotor-control systems. BABCOCK & WILCOX, Ltd. Dec. 23, 1952 [Dec. 29, 1951], No. 32678/52. Class 135. [Also in Group XII] In a steam-generating furnace (see Group XII) a steam pressure sensitive element 160, Fig. 3, controls, through a pilot valve 162, a relay 168 and further valves, the controllers 203, 204 and 205 of fuel-supply means of the furnace. A suitable type of pilot valve is disclosed in Specification 425,607, [Group XII] and a suitable relay in Specification 461,389. Indications of a steam flow meter 180 and an air flow meter 182 are transmitted through pilot valve 186 and relay 190 to an averaging relay 210 in which they are modified by signals, from the element 160, received through line 178. The relay 210 controls, through further valves and relays, a forced-draught damper control 226 and in conjunction with an hydraulic tachometer 234, a relay 238 which is of the type disclosed in U.S.A. Specification 2,441,405 and which controls devices 242 and 244 which regulate the speed of the forced draught fan. A similar control of induced draught by damper control 274 and speed controls 294, 296, is effected by a furnace draught controller 250. In these systems, selector valves such as 197, 216 and 266 are constructed as disclosed in U.S.A. Specification 2,202,485, the steam and air flow meters are of the type disclosed in Specification 403,752 and differential and averaging relays are of the. type disclosed in the abovementioned Specification 461,389. Specification 537,539, [Group XII], also is referred to. For boiler loads in which the final steam temperature would otherwise be lower than optimum, the temperature is raised by re-circulating flue gases, controlling impulses being produced, as shown in Fig. 4, by a boiler load. meter 300, a final steam temperature meter 302 and a recirculated gas flow meter 304. The three meters control, through various valves and relays, a damper 306 in the path of the re-circulated gases, a spray attemperator control valve 342 and a controller 340 which starts and stops a recirculation fan motor 356. Specifications 523,753, [Group II], 656,551, [Group XII], and 721,155, [Group XIII], and U.S.A. Specification 2,380,463 also are referred to.
Patent GB-275474-A (GB)
Title: Improvements in clearance control for fluid compressors
IPC: F04B49/02
Filed: 1926-12-24
Abstract: 275,474. Ingersoll-Rand Co., (Assignees of Prellwitz, W.). Aug. 4, 1926, [Convention date]. Regulating compression.-A double acting compressor is provided with two clearance chambers F, H at each end of the cylinder and the chambers are operated in successive pairs giving a progressive balanced unloading by resiliently controlled means such as the spring pressed piston valve W which controlls admission of receiver air to operate the clearance valves.
Patent GB-1145969-A (GB)
Title: A circuit arrangement for minimising divergences from a predetermined value in the amplitude of an electrical signal
Inventor: SENNHENN EMIL
IPC: H04N5/53
Filed: 1966-05-20
Abstract: 1,145,969. Transistor gain control circuits. FERNSEH G.m.b.H. 20 May, 1966 [22 May, 1965; 13 Dec., 1965; 26 March, 1966], No. 32759/68. Divided out of 1,141,471. Heading H3T. A circuit arrangement for minimizing divergencies from a predetermined value in the amplitude of an electrical signal, e.g. a video signal, comprises means for developing a control voltage related to the amplitude of a predetermined component of said signal and means for applying said control voltage to vary the gain of an amplifier, connected in the path of said signal, by way of two parallel-connected control channels, one said channel having a relatively large time-constant and the other said channel having a relatively short timeconstant, said other channel comprising a capacitor connected in series with the parallel combination of a diode and a resistor and becoming operative only in response to values of control voltage exceeding a predetermined threshold level. The gain controlling voltage at terminal 101 is applied over capacitor 106 to emitter follower 107, the D.C. level being restored by means of a clamp circuit comprising transistor 111, the base of which is driven with line pulses 117, the D.C. level is adjusted by means of potentiometer 113. Emitter follower 107 is directcoupled to a second emitter-follower 122, the emitter circuit of which comprises a capacitor 123 which charges up to the peak value of the video signal. Capacitor 123 is periodically discharged via transistor 125 which is driven conductive by frame pulses applied to its base from terminal 127. The current through transistor 125 develops a voltage across emittercircuit resistor 126 which is applied over D.C. amplifier 132 to the bases of transistors 136, 137 of opposite conductivity type. The emitters of transistors 136, 137 are parallel connected via capacitor 141 to a two-stage emitter-follower comprising transistors 142, 142<SP>1</SP>, the D.C. level being restored by means of a clamp circuit 143 driven with frame pulses from terminal 127. Emitter-follower 142<SP>1</SP> supplies a smoothed gain control voltage to terminal 105 via a long timeconstant smoothing circuit comprising resistor 145 and capacitor 146. A further capacitor 171 in series with a diode 172 shunted with a resistor 173 is connected in parallel with resistor 145: when a voltage step greater than the turnon voltage of diode 172 occurs, this diode becomes conductive, shunting resistor 145 and reducing the time-constant of the A.G.C. smoothing circuit.
Patent GB-1435184-A (GB)
Title: Metling apparatus
IPC: F27D3/08
Filed: 1973-07-10
Abstract: 1435184 Charging electric furnaces DONAU CHEMIE AG 10 July 1973 [20 July 1972] 32780/73 Heading F4B The hollow electrode 9 of a melting furnace is fed with material from a supply hopper 3 by a tiltable screw conveyer 6, 7, the supply hopper having an outlet below the level of the upper end of the electrode. Flexible connecting members connect the conveyer tube 6 with the hopper outlet and with the supply tube 12 which penetrates the electrode 9. The conveyer tube 6 is supported by guides 8, 11 and is tiltable by means of a pin 14 movable in a vertical guide 15.
Patent GB-1517194-A (GB)
Title: Combinations of shopping trolleys and cash counters
IPC: B62B3/18
Filed: 1975-08-06
Abstract: 1517194 Check-out systems BAG SYSTEM AB 6 Aug 1975 [7 Aug 1974] 32805/75 Heading A4T [Also in Division B7]  A shopping trolley comprises at least one basket 1 having a side wall 7 pivotable from a closed position, Fig. 1 (not shown), to a raised position on inserting the trolley into a compartment in a counter, means 10 being provided on the counter for raising the pivotable wall 7. The means 10 raise the wall 7 by engagement with arms 8 supporting it, and may include magnets for retaining the wall 7 in raised condition and returning it to the closed position on withdrawing the trolley. Alternatively stops (not shown) may retain the wall 7 in raised condition, and it may be balanced to return to the closed position under its own weight.
Patent GB-464588-A (GB)
Title: Improvements in syphons
IPC: E02B13/00
Filed: 1935-11-27
Abstract: 464,588. Siphons; liquid meters; water-waste-preventers. IYER, V. G. Nov. 27, 1935, No. 32818. [Class 69 (i)] [Also in Group I] A siphon, shown in Fig. 3 as applied to a water-waste preventer, comprises a hood D surmounting a funnelshaped or bell-mouth inlet B mounted on a vertical discharge pipe C, there being a number of curved vanes b arranged in the inlet to give a vortex motion to the liquid as it discharges. Apertures may be provided at different heights in the skirt of the hood, any one of which may be opened to cause the discharge to cease when the fluid-level has fallen to that of the aperture. In the water-waste preventer shown, the discharge pipe C is free to slide in a gland G and carries a tray E which floats on the rising water until further-upward movement is prevented by contact of the hood D with a stop K. The water then flows into the tray E which sinks together with the siphon, which then operates until the tray is emptied and the action recommences. Figs. 6 and 7 show the application of the syphon for priming spillway siphons E built into or adjacent a dam, one or two of the vortex syphons being provided between the hooded syphons E and connected to them by pipes d<4> so that the suction produced by the operation of the vortex siphons causes rapid priming of the spillway siphons.
Patent GB-1102855-A (GB)
Title: Fast recovery read amplifier
IPC: H03K5/01
Filed: 1966-07-21
Abstract: 1,102,855. Transistor pulse circuits. GENERAL PRECISION SYSTEMS Inc. 21 July, 1966 [23 Dec., 1965], No. 32866/66. Heading H3T. A train of D.C. pulses is converted into a train of A.C. pulses by adding to it a delayed and inverted version of it. The resulting A.C. signal thus introduces no bias in a D.C. coupled amplifier. As described, a push-pull D.C. pulse signal is applied at inputs 10, 12 and result in antiphase signals at the collectors of transistors 13, 22. The signal at the collector of transistor 13 is delayed by delay line 48 and added to that at the collector of transistor 22 to provide an A.C. pulse input to transistor 42 which forms one half of a second push-pull stage. Similarly the signal at the collector of transistor 22 is delayed by the delay line 48 and added to that at the collector of transistor 13 to form the input to transistor 30 of the second push-pull stage.
Patent GB-1009199-A (GB)
Title: Protection of tree seedlings
IPC: C07F9/22
Filed: 1963-08-20
Abstract: Tree seedlings are protected against damage by warm-blooded animals by applying to the root zone thereof <FORM:1009199/A5-A6/1> wherein each R is a C1-C4 alkyl group the concentration of such compound in said root zone being such as to maintain in the plant by systemic absorption from said zone from 400-200 parts per million of said compound based on the green plant weight.  Preferably the compounds are administered absorbed on granular clay-filled water-soluble e.g. gelatin capsules having an aluminium paint lacquer.
Patent GB-1270459-A (GB)
Title: Improvements in or relating to supercharging apparatus of engines
Inventor: SFINTEANU DRAGOS
IPC: F02B37/16
Filed: 1969-06-30
Abstract: 1,270,459. Cooling exhaust gases; pumps. UZINA 23 AUGUST. June 30, 1969, No.32964/69. Heading FiB. A supercharing apparatus of a two or four stroke single or multi-cylinder engine, comprises a centrifugal compressor 10, Fig.2, driven by an exhaust-gas-driven turbine 9, and has a branch pipe 6 through which some of the air from the compressor is delivered directly into exhaust pipe 5 to cool the gases therein to a temperature acceptable to the turbine 9. The quantity of air delivered through pipe 6 is controlled by a valve 7 in direct proportion to the quantity of fuel injected. The cylinder 1 has an inlet valve 2 and a common inlet and exhaust valve 3. During induction an oscillating valve 12 moves into a position in which air is permitted to flow up through a branch pipe 11 and through open valve 3 into the cylinder, the latter also receiving air through the inlet valve 2. The air flow into the cylinder cools the valve 3. In an alternative embodiment, Fig. 1 (not shown), the branch 11 and valve 12 are omitted and the valve 3 functions as an exhaust valve only.
Patent GB-731786-A (GB)
Title: Electrically driven mixing and stirring machine for kitchen use
IPC: A47J44/02
Filed: 1953-11-27
Abstract: 731,786. Mounting electric motors. FABER, E., and HAHN, L., [trading as MAUZ & PFEIFFER]. Nov. 27, 1953 [Nov. 27, 1952], No. 32965/53. Class 35. A kitchen utensil has a driving motor with a casing 1 which is pivoted on horizontal pins 2 on a base stand 3 so that the motor can be locked in two positions, i.e. horizontal or vertical, by means of a withdrawable bolt 4. The motor is adapted to give a high-speed direct drive as, e.g., when the motor is in the vertical position and arranged to drive a mixing container 15; other devices such as a mincer 10 or stirring member 8 are driven through a reduction gearing. Other tools may also be driven from the motor through a flexible drive.