baber/WOPTO huggingface dataset:
Patent GB-1469629-A (GB)
Title: Apparatus for controlling an adjustable pump
IPC: F04B1/06
Filed: 1975-05-13
Abstract: 1469629 Fluid-pressure servomotor systems ROBERT BOSCH GmbH 13 May 1975 [17 May 1974] 20152/75 Heading G3P The eccentricity of stator ring 12 of a vane pump pump is varied by pistons 14, 15 controlled by valves 29, 31 which are operated by an electronic control apparatus 34 which compares a "desired eccentricity" signal S with an "actual eccentricity" signal from a sensor 38, movement of the ring 12 in either direction being effected by moving a respective one of the solenoid-operated valves 29, 31 into position I whereby pump discharge pressure 26 is fed to the associated cylinder to urge its piston thereoutof, the other valve being moved either to a slow rate of movement position II in which the associated cylinder is cut-off and blow thereoutof can only take place via a throttle formed by a clearance between the piston and cylinder, or to a fast rate of movement position III in which fluid can be pushed out of the cylinder to a low-pressure reservoir 27. In a modification Figs. 2 and 3, (not shown), one piston is permanently subjected to pump discharge pressure whilst the other is controlled by a valve possessing positions I and II only.
Patent GB-169146-A (GB)
Title: Improvements relating to condensate ejectors
IPC: F01B25/00
Filed: 1921-07-28
Abstract: 169,146. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Schmidt,. H. F.). Sept. 11, 1920, [Convention date]. Conveyer apparatus, ejector; overflow arrangements.-Condensate or hot-wall ejectors comprise more than one stage and have overflows at the several stages all connected to the upper part of the condenser. In a two-stage arrangement the first-stage ejector 12 is operated by exhaust or live steam, and from the overflow chamber 30 around the diffuser 15, 16, pipes 32, 33 lead back to the condenser 10. Similar overflow connection is provided for the overflow chamber 31 of the second-stage ejector 18. Live or exhaust steam is used for the second stage, and the usual check valve 24 upon the delivery 23 is provided.
Patent GB-1017355-A (GB)
Title: Unipolar transistor
IPC: H01L29/00
Filed: 1964-05-15
Abstract: 1,017,355. Unipolar transistors. WESTING- HOUSE ELECTRIC CORPORATION. May 15, 1964 [May 29, 1963], No. 20310/64. Heading H1K. A silicon carbide unipolar transistor is produced by preparing a wafer consisting of an inner region of one conductivity type surrounded by an outer region of the opposite type, etching away parts of the outer region to expose sites in the inner region to which ohmic source and drain electrodes are applied and applying an ohmic contact or contacts to the outer region to serve as a gate electrode or electrodes. In Fig. 5 the source and drain electrodes are 66 and 68 and electrodes 70 and 72 are gates: in Fig. 6, 98, 100 and 102, 104 are the corresponding electrodes. The N-type inner region of the devices shown is nitrogen doped and the P-type outer region has been formed by a subsequent thermal diffusion of aluminium into the surface. The etching is performed electrolytically in a bath (Fig. 3, not shown) of HF in methyl alcohol, using the wafer as anode; under these conditions the outer P-region dissolves readily but the inner N-region does not. The electrodes may be of gold, tungsten, tantalum or alloys thereof which may be alloyed to the crystal, but are preferably of silicon which may be vapour deposited. As shown the electrodes are silicon, doped with phosphorus in the case of the connections to the N-region and boron for the P-region. Each electrode is capped by a silver foil contact, e.g. as at 78, Fig. 5.
Patent GB-153861-A (GB)
Title: Improvements in and relating to the treatment of clay
IPC: B28C1/10
Filed: 1919-06-02
Abstract: A process for the treatment of clay comprises suspending the clay in water with the aid of a deflocculator such as sodium carbonate and then, before any settlement takes place, evaporating the whole suspension to dryness.  The clay may be first mixed with sufficient water to give a pasty mass, and then sufficient deflocculator added to produce fluidity, with or without further addition of deflocculator until the fluidity decreases; or the clay may be directly worked up with water and deflocculator.  The clay may be first purified, for example by one of the processes described in Specification 106,890 or 121.191, [both in Class 87 (i), Bricks &c.]. The product may be used for incorporation with rubber.
Patent GB-295649-A (GB)
Title: Improvements in and relating to sheet feeding apparatus
IPC: B65H3/08
Filed: 1928-07-12
Abstract: 295,649. Soc. Anon. Anciens Etablissements L. Chambon. Aug. 16, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Sheet - separators. -Sheets or cartons are separated from a pile by means of reciprocating cylin. ders 7 of air pumps comprising also reciprocating pistons 8, which are moved re latively to the cylinders 7 alter suckers 29 on the cylinders 7 engage the bottom sheet of a pile resting on supports 4, 5. From the position shown in Fig. 5, in which the suckers are in the pile contact position, the pistons 8 are lowered to reduce the air pressure in the cylinders 7 and thus separate the bottom sheet. The pistons 8 are operated by lever mechanism and a cam on shaft 26. Then the cylinders 7 are also lowered as well as the pistons, and the detached sheet is carried to a position level with a pair of feed rollers 15, 16, and the cylinders remain at rest while the pistons are raised to restore the air pressure and release the sheet. Finally both the cylinders and pistons are raised to engage the next sheet. The cylinders 7 move in fixed guides 6, and are supported on a base 14 which is also reciprocated by lever mechanism and a cam on the shaft 26. Sheet-carriers.-The detached sheet is fed by rollers 15, 16 geared together and driven from the cam shaft 26. The rollers 15 are mounted in oscillating arms 22 and move to the right to grip the separated sheet, which is then advanced to the left by the rollers 15, 16.
Patent GB-263899-A (GB)
Title: Improvements appertaining to take-up mechanism for looms
IPC: D03D49/20
Filed: 1926-05-14
Abstract: 263,899. Hodgson, Ltd., G., and Bailey, F. May 14, 1926. Addition to 218,758. Take-up motions. - The takeup roll on the spindle s is normally driven through gearing 12, 14a, 14, 17, Fig. 1, by the usual pawl 18, Fig. 6; but for fringing purposes it is rapidly rotated through chaingearing 8, 7, 6, from the usual gear-wheel 4, the pawl 18 being raised out of engagement with the rapidly rotating wheel 17. The partly-toothed wheel 2 is shifted along the spindle 3 into gear with the wheel 4, and the pawl 18 is raised, by lever-andcord connections to dobbvlevers 29, 29a, Fig. 1. An additional retaining ratchetwheel 20, Fig. 6, is fixed on the take-up spindle s. A clutch between the wheels 8, 12 allows the wheel 12 to rotate without actuating the wheel 8. Letting-off warps.-A further dobby lever acts to release and to re-impose the friction let-off mechanism slightly before the rapid take-up begins and ends respectively. A lever acts through a cord 45 and levers 44, 42, to shift a cam 38 along a shaft 37 to engage with a lever 35 which is thereby actuated to raise the weight-lever 33 of the warp-beam brake mechanism.
Patent GB-280646-A (GB)
Title: Improvements in and relating to pumps, compressors and like apparatus for handling fluids
IPC: F04B45/073
Filed: 1926-08-19
Abstract: 280,646. Hales, S. E. Aug. 19, 1926. Flexible-chamber pumps; actuating by hydraulic motors.-A pump for delivering a definite or measured quantity of fluid, e.g. petrol, acid &c., or for compressing air comprises a collapsable container 10 which is filled with and then expels the petrol &c., the mechanism for collapsing the container comprising a closed circuit oil pump 27 which delivers and withdraws oil in and out of an annular space between the cylinder wall 7 and the container 10. Alternatively the container may receive and discharge the fluid to be pumped while the annular space receives the working oil. The bottom of the container or bag 10 is secured over a coned plate 9 provided with inlet and outlet valves 22, 24, and the top is secured to a plug 13 carried by a sealed tubular rod 15, the whole being movable up and down. The weight of the plug, bag &c. is balanced by a spring 19. The end of the rod 15 is connected to a recording indicator. The oil pump 27 is driven from a hand wheel 39 through bevel gearing and worm drive provided with self acting clutch mechanism to convert continuous action of the hand-wheel into reciprocating motion of the pump plunger, the clutch mechanism being set to deliver the petrol &c. in half-gallons &c. as desired. The upward motion of the plunger is reversed by engaging an adjustable trip bar to push over a lever 51 causing the clutch to gear with the other of the two bevel wheels 43. A similar reversal is effected at the end of the downward stroke To obtain quick reversal of the drive the lever 51 has a spring operated snap over mechanism.
Patent GB-381624-A (GB)
Title: Improvements in or relating to the steering of vehicles
IPC: B62D7/16
Filed: 1931-07-17
Abstract: 381,624. Motor vehicles. HAGENBURG, O. H. G., 34, Elisabethenstrasse, and HOFFMANN, G., 42, Viktoriastrasse, both in Darmstadt, Germany. July 17, 1931, No. 20565. Convention date, Oct. 21, 1930. [Classes 79 (iv) and 79 (v).] A stiff radius-rod framework connects the front or steering axle to the chassis frame and is pivoted to the latter at a point adjacent the virtual pivot on the frame about which the drag-link oscillates during springing movements. In the construction shown in Figs. 1 and 2 the radius rod comprises a pyramidal framework d, e having its forward ends fixed to the axle a and having its apex pivoted at h to the chassis frame, the pivot h being adjacent the pivot g by which the draglink f is connected to the drop arm g<1> of the steering gear. The suspension springs bare fixed to the axle and are slidably connected at both ends at c to the frame. In the construction shown in Fig. 3 an additional radius rod l is provided. The pivots g, h may be alongside each other as shown, or one may be nearer the front of the car than the other. The springs may be longitudinal as shown, or transverse.
Patent GB-732717-A (GB)
Title: Improvements in shock absorbers
Inventor: SEDDON ROBERT MAXWELL
IPC: B60G11/22
Filed: 1952-08-16
Abstract: 732,717. Rubber spring units; road-vehicle spring-suspensions. DUNLOP RUBBER CO., Ltd. July 22, 1953 [Aug. 16, 1952], No. 20646/52. Classes 108 (2) and 108 (3). A shock-absorber comprises inner and outer telescopic tubular members 1, 6, the outer member 1 having an oil reservoir 1a into which an end of the inner tube 6 projects, a rubber cushioning element 18 compressible between abutments 2, 12, and making a close fit around the member 6 under static load, and a clearance fit under shock load, passageways 7 and 11 for oil flow from the reservoir 1a into the tube 6, to the clearance surrounding the tube 6, and an abutment 1b surrounding the element 18, so that on compression the element expands progressively into contact with the abutment 1b. The abutment 1b comprises a frusto-conical bore 5 so that as the outer diameter of the element 18 increases on compression, its effective length decreases. Alternatively the element 18 may be of frusto-conical form. The inner member has holes 11 which provide for flow of oil from the reservoir 3 to the bore of the element 18 when the latter is expanded by compression. The element 18 is enclosed by a metal sleeve 20 and a bellows 21. A recoil buffer 8 is mounted on the tube 6. As applied to a vehicle suspension, the member 1 is secured to a chassis-frame member 22 (Fig. 2). The inner member 6 has metal bearing 13 which bears in a rubber member 23 carried by a housing 24 rigid with a wishbone member 25. A rebound rubber buffer 15 is carried by a spindle rigid with the bearing 13. The wishbone member 25 carries a wheel at its outer end 26. Specification 663,195 is referred to.
Patent GB-1437183-A (GB)
Title: Compound fluid flow control valve
IPC: F16K1/38
Filed: 1973-05-02
Abstract: 1437183 Valves RADIATION Ltd 27 Sept 1973 [4 Oct 1972 2 May 1973] 45827/72 and 20776/73 Addition to 1292045 Heading F2V A compound valve assembly for gas appliances comprises an on/off lift valve member 14 having an actuating member 15 and a variable flow cross-section needle valve member 9, the valve member 9 being coupled to the member 14 by a connection which transmits rotary movement but allows relative axial movement between the members. The member 9 is located on a screw-threaded boss 8 engaged in a sleeve 2 fixed to a casing 1. The sleeve can be rotatably adjusted to align the member 9 relative to the orifice 6. The boss 8 is provided with flats to permit unrestricted gas flow. The connection shown is of the tongue and slot type. A resilient washer 13 acts as the seat for member 14 which is spring-biased to the closed position, and the washer is held against a shoulder by a second sleeve 11. The actuating member is provided with a niting pin 21 which co-operates with a cover 20. In further embodiments the casing is designed to allow all elements to be inserted from the niting cover end.
Patent GB-323244-A (GB)
Title: Improvements in systems for reducing the disturbances caused by apparatus capable of producing high frequency interference with radio receiving apparatus
IPC: H04B15/02
Filed: 1928-07-18
Abstract: 323,244. Gerhardt, O. July 18, 1928. Protective arrangements.-Apparatus capable of generating high frequency disturbances to which radio receiving apparatus may be sensitive is provided with a capacity in shunt to the source of such disturbances and a choking coil or coils in the supply leads to prevent transmission to external conductors. The capacity may be a condenser or may take the form of a metallic shield or casing permanently earthed or earthed through the body of the user. A motor M may have a condenser D across its terminals and inductances 8 in the supply leads. A dynamo-electric machine, Fig. 2, may be provided with auxiliary brushes c, d to each of which are connected condenser electrodes D', D<2> arranged between electrodes D<3>, D<4> connected to the main terminals. A trolly collector, Fig. 3, may have one or two auxiliary collectors H<1>, H' in parallel with the main collectors R with a condenser D<1>, D<3> in series. An inductance 8 may be placed in the lead supplying the lighting circuit derived from the trolly. Therapeutic radiation and high frequency apparatus, Fig. 5, comprising a primary oscillating coil 1, interrupter 2 and Tesla transformer 4, 5 supplying a vacuum tube 6 may have choking coils 8 in the leading-in wires and a metallic casing G enclosing all but the radiating aperture H and permanently earthed or adapted to be earthed by contact with the hand of the operator or with the patient. The casing may be in separate portions, enclosing the tube, Tesla coil and primary oscillator respectively and connected together by sections of knitted metal-fabric sheathing enclosing the connecting wires or by a simple metallic connection. The condensers in series, D<2>, D<3>, Fig. 6, may be shunted between the leading-in wires with their common terminal connected to the casing, or one end of the Tesla coil secondary and the earthed casing may be connected to separate intermediate electrodes of a condenser D<2>, D<3> as shown in Fig. 8. Condensers for this purpose may be constructed as indicated in Fig. 7. The circuits of the Tesla coil may be connected as shown in Fig. 9, condensers D<2>, D<3> being in series with the leads from the primary oscillator and the coil windings being connected to the casing. The primary oscillating coil 1 may supersede one of the choking coils 8 in this arrangement. A vacuum tube lighting arrangement with similar supply circuits is shown in Fig. 11, the apparatus being enclosed in a metal casing having an opening for the tube with a metal shield 7 which may form a reflector behind. A system suitable for advertising has an external tube enclosed in a sheath of wire grating or netting connected with the casing.
Patent GB-655662-A (GB)
Title: Improvements in and relating to electric lamps and to base structures therefor
IPC: H01J5/56
Filed: 1946-07-12
Abstract: 655,662. Bending glass tubes. BRITISH THOMSON-HOUSTON CO., Ltd. July 12, 1946, No. 20924. Convention date, May 7, 1945. [Class 56] [Also in Groups XI, XXXVI and XL(a)] The tubular envelope of an electric lamp is bent to a closed configuration, the adjacent ends being directed towards one another and engaged by a common base member 10, as described in Specification 560,244. Metal discs 4 sealed to the respective ends of the envelope 2 are apertured for the passage of current leads 13, are formed with one or more annular shoulders 18, 19 having a cylindrical or frusto-conical outer surface, and are engaged by the common base member 10. The metal discs 4 may be flat or curved apart from the shoulders, and the central bosses 9 which have conical sides afford a grip by which an initially straight tube can be held to bend it to the desired closed configuration after heatsoftening.
Patent GB-171434-A (GB)
Title: Improvements in a method and apparatus for unloading pumps
IPC: F04F5/46
Filed: 1920-07-12
Abstract: 171,434. Alexander, A. E., (Surface Combustion Co.). July 12, 1920. Controlling.-The unused part of the fluid discharged from a pump or compressor 10 is bypassed back to an injector 14 and used to draw in fresh fluid from the inlet 12. The injector, which is preferably constructed as described in Specification 117,612, is, to begin with, shut off by a valve 35, closed by weights 39 on a bellows 37, and fluid enters the pump through a pipe 15. As the load increases, the pressure on the delivery side increases until the valve 35 is opened, when the injector comes into action. A check valve 16 prevents backward flow of fluid from the injector. An adjustable conical valve may be fitted in the throat of the injector, or, as shown in Fig. 3, the valve 35 may be prolonged and screwed into a conical member 42, which is thus adjusted automatically together with the valve 35. By turning a hand wheel 51 on a squared shank 45 the relative positions of the valves 35 and 42 are adjusted.
Patent GB-697234-A (GB)
Title: Improvements in or relating to hand-guided machine tools
IPC: B25D11/12
Filed: 1950-08-24
Abstract: 697,234. Reciprocatory filing; riveting. RUDKIN & RILEY, Ltd., and TARRY, F. H. Aug. 20, 1951 [Aug. 24, 1950], No. 20958/50. Classes 83 (iii) and 83 (iv). [Also in Group XXIII] The body of a tool for filing or riveting comprises front and rear sections 2, 3 having interfitting flanges 2a, 3a and secured together by screws 5. A handle 6 is formed integral with the rear section 3. The front section 2 has a bearing 7 with a bush 8 to receive the shank 9 of a chuck 10 holding the file &c. A connecting- rod 21, pivotally connected by a screw 22 to the forked inner end 9a of the chuck shank 9, is rigid with a circular strap 20 on an eccentric 19 secured, by screws 23, to a spur gear 17 meshing with a pinion 14 on a spindle 12. The spindle 12 is mounted in bearing-sleeves 11 in the front section 2 and intermediate its ends is shouldered and formed with a protuberance 13 to support and key the pinion 14. The lower end of the spindle 12 extends through the wall of the body and is coupled to a flexible shaft 15. driven by an electric motor; the coupling is surrounded by a tubular cover. 16. The front and rear. sections 2, 3 may be separated and sealed off from each other by a diaphragm whereby the front section 2 can function as a casing to contain oil in which the gearing, eccentric and connecting-rod run; the front section 2 has an oil plug 24.
Patent GB-235513-A (GB)
Title: Improvements in or relating to electric water heating apparatus and the like
IPC: F24H1/10
Filed: 1924-09-05
Abstract: 235,513. Henneman, K. F., and Kerkhoven, P. June 13, 1924, [Convention date]. Heating by electricity.- An apparatus for heating liquids comprises tubes 1 arranged side by side and through which the liquid flows in parallel, each tube being coated internally with insulating material or fitted internally with a glass tube 4 and containing a bare heating wire 13 preferably of spiral form, the heating wires being connected to separate supply leads at one end 12 and connected together in star fashion at the other end 16. The apparatus possesses two inlet connections 18 and two outlet connection 15, so that a, number oi heaters can be coupled together. The heater may be enclosed in a casing 19 covered with cork or slagwool. The apparatus may be provided with an interconnected cock and switch. Specification 206,834, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-1006003-A (GB)
Title: Push-button mechanisms
Inventor: ANGOLD EDWARD BARNABAS
IPC: H01H13/74
Filed: 1962-05-31
Abstract: 1,006,003. Latching switches. PLESSEY CO. Ltd. May 29, 1963 [May 31, 1962], No. 21064/62. Heading H2B. In a push button mechanism, an operating member 2 has a wedge-shaped catch 13 into which the base 8B of a U -shaped latch bar engages when a pushbutton 7 is depressed, the latch bar being raised before it engages catch 13 so that any previously depressed button is released. The latch bar pivots in channels 10 in the cover 5 and is held in these channels by the ends 12 of a spring 9, Fig. 3 (not shown), a tongue 9A of which biases the latch bar against the operating member 2.
Patent GB-460249-A (GB)
Title: Manufacture of n-(aminoalkyl)-anthranilic acid alkyl esters
IPC: B61F17/20
Filed: 1935-07-25
Abstract: N-Aminoalkyl-anthranilic acid alkyl esters are prepared by treating an anthranilic acid alkyl ester with an aminoalkyl halide or by esterifying an N-aminoalkyl-anthranilic acid with an alcohol.  The products possess therapeutic properties.  Examples are given of the preparation of (1) N-b -diethylaminoethylanthranilic acid ethyl ester by heating anthranilic acid ethyl ester with b -diethylaminoethyl chloride in chloroform solution: (2) N-b -diethylaminoethyl - anthranilic acid butyl ester by esterifying N-b -diethylaminoethylanthranilic acid, obtained by reacting anthranilic acid with b -diethylaminoethyl chloride, with butyl alcohol either by heating the acid and excess of alcohol in the presence of hydrogen chloride or by interaction of the alcohol with the hydrochloride of the acid chloride, prepared by treating the acid with phosphorus pentachloride in benzene solution.  The Specification as open to inspection under Sect. 91 describes also the preparation of (3) N-b -aminoethyl - anthranilic acid ethyl ester by heating anthranilic acid ethyl ester with the hydrochloride of b -aminoethyl chloride; (4) N-b -butylaminoethyl-anthranilic acid ethyl ester by using b -butylaminoethyl chloride, obtainable from b -butylaminoethanol and hydrochloric acid gas at 200 DEG  C. with distillation of the water formed, in the process of (3); (5) N-b -piperidinoethyl - anthranilic acid ethyl ester from b -piperidinoethyl chloride and anthranilic acid ethyl ester.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to French Patent of Addition Specification 22,632.
Patent GB-1210710-A (GB)
Title: Flow measuring device
Inventor: CLEARY ROBERT EUGENE
IPC: G01F1/37
Filed: 1968-05-03
Abstract: 1,210,710. Measuring fluid flow. R.E. CLEARY. May 3, 1968, No.21165/68. Heading G1R. In a fluid-flow measuring device a differential pressure measuring device 50 has one side 52 connected to an opening 38 between the ends of a flow passage 30 of a progressively increasing crosssection in the direction of flow its second flow passage of a progressively reducing cross-section 92 downstream of the passage 30 is connected between the ends thereof to the other side 54 of the differential pressure measuring device. The fluidflow through the device can be obtained from the differential pressure readings.