baber/WOPTO huggingface dataset:
Patent GB-195217-A (GB)
Title: Improvements in compressor unloading mechanism
IPC: F04B49/10
Filed: 1922-02-01
Abstract: 195,217. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Feb. 1, 1922. Controlling compression.-In compressor unloading mechanism in which a relief valve on a branch forms the discharge pipe between the cylinder and a discharge check valve is controlled by fluid pressure regulated by a pilot valve, the pilot valve is controlled by a speed governor to open the relief valve at low speeds at starting and stopping, and to hold it closed at higher speeds. The horizontal compressor cylinder A is furnished with the inlet and discharge valves a, b, and with a check valve c in the discharge passage C. Between the valves b, c a by-pass connection 10 leads through a valve port 12 to an outlet 11 to atmosphere; the port is closed by a valve d depressed by a spring-pressed plunger 13 working in a casing connected by a pipe 17 with a port 3 in the casing of a pilot valve e, the stem of which is connected to a centrifugal governor f. A second port 4 in the valve casing is connected by a pipe 18 with the discharge beyond the valve c. At starting, air flows through this valve c until the pressure is high enough to lift the valve d and allow air to escape. As the speed rises afterwards, the governor raises the pilot valve e, putting the port 3 which was open to atmosphere into communication with the port 4 and thereby allowing air to pass through the pipes 18, 17 to the back of the valve d and to close it.
Patent GB-270213-A (GB)
Title: Improvements in and relating to key controlled sash locks
IPC: E05F11/00
Filed: 1927-02-03
Abstract: 270,213. Cushley, J. Feb. 3, 1927. Fastenings for sliding windows; locks, attaching; lockmechanism, tumbler-type and slidertype.-A sash lock operated by a key comprises a casing S secured to the lower sash 2 by concealed screws 10 and housing a bolt 14 adapted to engage one of the slots 7 in a bar 3 secured by concealed screws to the upper sash 1. The bolt 14, pivoted on a shaft 15, has an extension 17 adapted to be held by a pair of spring-pressed tumblers 18 after the bolt has been swung by its handle 28. The tumblers are disengaged by a key 26 engaging the ends 21 thereof. In a modification, Fig. 10, the swing bolt is replaced by a sliding bolt 33 operated by rack and quadrant 34, 35, and held in the locked position by sliders which are released by a key.
Patent GB-127020-A (GB)
Title: Improvements in or relating to Propellers.
Inventor: PAULHAN LOUIS
IPC: B64C11/20
Filed: 1917-03-02
Abstract: 127,020. Paulhan, L., and La ChevardiÞre de la Grandville, H. J. L. M. de. April 6, 1916, [Convention date]. Screw propellers. - A wooden laminated propeller with fabric between the joints is subjected to heavy compression to bend it into shape. Metal sheets covered with canvas may be inserted between the blades, and the insertions are cut so that their outer edges lie within the propeller.
Patent GB-547744-A (GB)
Title: Improvements in or relating to liquid pressure remote control systems
IPC: G08B9/14
Filed: 1941-03-08
Abstract: 547,744. Hydraulic remote control systems ; ratchet gearing. AUTOMOTIVE PRODUCTS CO., Ltd., EVES, F. S., CHADBURN'S (SHIP) TELEGRAPH CO., Ltd., and BAMFORD, G. M. D., and BAMFORD, D. C., [Representatives of BAMFORD A. C.] March 8, 1941, No. 3165. [Class 69 (ii)] [Also in Group XXIV] In a liquid pressure remote control system such as is described in Specifications 540,980 and 542,986 for operating ship's or like telegraphs, accuracy of the signals received is assured by fitting to the shaft 36 of the receiving unit a spring- actuated locating device which is loaded by the initial movement of the motor unit and then reacts to move the controlled member independently of the said motor unit. The device comprises a star-shaped wheel 47 with rounded teeth which are engaged by rollers 48, 49 carried by a pair of curved levers 50, 51 pivoted to the casing 26 of the receiving motor uni s and connected to tension springs 54, 55. On initial movement of shaft 36 the levers are moved outwards to store up energy in the springs which is utilized during the latter part of the movement step to turn the shaft 36 to the precise angular position required.
Patent GB-803620-A (GB)
Title: Improvements in or relating to television and sound broadcast receivers
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: H04B1/26
Filed: 1956-02-01
Abstract: 803,620. Frequency modulation receivers. RANK CINTEL, Ltd. Jan. 25, 1957 [Feb. 1, 1956], No. 3180/56. Class 40 (5). In a television receiver including a frequency modulator V.H.F. channel the vision I.F. signal is applied to a known I.F. amplifier 5 and display circuits, the sound I.F. signal being applied to both the amplitude modulation detector 15 and discriminator 16, the output of the latter being fed to a low-pass filter 20 and automatic frequency control circuit 21 in order to stabilize the local oscillator 4 on both vision and F.M. reception. The lowpass filter may either exclude all but the very low frequency output of the discriminator, or may pass audio frequency, thus providing frequency compression by varying the oscillator frequency as a function of the audio output.
Patent GB-380702-A (GB)
Title: Improvements in light-sensitive silver halide emulsions
IPC: G03C1/16
Filed: 1932-02-03
Abstract: A selenocyanine dye in the form of its alkyl halide or alkyl sulphoalkylate is used for sensitizing silver halide emulsion to blue rays.  The products may have the formula:  <FORM:0380702/IV/1> wherein R1 may be a substituent such as methyl, methoxy, ethoxy, or chlorine.  Naphthoselenocyanines may also be used.  1 : 1<1>-Diethylbenzoselenocyanine iodide is prepared by heating 2-methyl-benzoselenazole ethiodide with acetic anhydride and a little amyl nitrite, and re-crystallizing the product from alcohol.
Patent GB-249823-A (GB)
Title: Improvements relating to the automatic operation of the controlling dampers of stoves
IPC: A01K31/19
Filed: 1926-02-04
Abstract: 249,823. Henquin, M. G. March 24, 1925, [Convention date]. Air supply and draught, regulating.-The controlling dampers of a stove are operated by a thermostat consisting of a bent tube, one end of which is secured to the wall of the stove. As shown applied to a brooder stove having a hood 1, the ash-pit door 5 is connected by a rod 7 of adjustable length to a lever 8 pivoted at 9 and connected to the free end of a. looped expansion tube 11 secured to the stove. The end of the lever 8 also operates the charging-door 4 by contacting with an arm 6, there being an adjustable amount of lost motion between the two so that the door 4 is not opened until the ash-pit door is partly closed. The tube 11 contains a liquid such as ether or alcohol.
Patent GB-469132-A (GB)
Title: Improvements in or relating to the production of cotton-like materials from hemp
IPC: D01C1/00
Filed: 1936-02-03
Abstract: In a process for obtaining from hemp a product similar to cotton, the hemp is treated with a ferment or diastase at about 45 DEG  C., then washed, treated at a pressure of 3--5 atmospheres, e.g. in an autoclave with a resin soap or an alkali and a resin adapted to form a soap, again washed, if desired neutralized, and then bleached, dried and mechanically defibrated.  Hemp staples are initially disintegrated by a hatching or steeping treatment and are then treated for 20--24 hours at 45 DEG  C. in a tank containing water and a suitable ferment.  After washing several times with water, the fibrous mass is treated with an aqueous alkali, e.g. caustic soda (2,5 DEG  B<\>ae.) to which is added \ba1/2\be--1 kilo of resin /100 kilos of hemp.  This treatment is conducted at 150--155 DEG  C. and about 5 atmospheres for not less than 5 hours.  Excess caustic soda is employed so that it may be continuously circulated.  The resin soaps formed dissolve the gums and resins constituting the cortical tissue of the plants.  The mass is washed three times with clear warm water, neutralized with sulphuric acid, again washed and bleached with an oxidizing bath, e.g. a chlorine solution for at least 4 hours.  Treatment may be by immersion or the solution may be circulated.  Washings with warm water, with dilute sulphuric acid and again with water follow.  The mass is then dried, and treated in usual manner to defiltrate it.  The product may be spun and the waste used as absorbent cotton.
Patent GB-177648-A (GB)
Title: Anti-splash device for wheels of road vehicles
IPC: B62D25/18
Filed: 1921-01-27
Abstract: 177,648. Henderson, J., and Hilson, J. Jan. 27, 1921. Lateral-splash guards. - A splash guard A is carried by spring-controlled rods H, J passing through a member G having a ball-bearing mounting on a detachable extension of the wheel hub. The member G is coupled to a depending rod by means of a lug M, or springs N, P connected to fixed parts of the vehicle are employed.
Patent GB-547978-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B49/04
Filed: 1941-03-12
Abstract: 547,978. Valves. KLEEN, N. E. AF. March 12, 1941, No. 3384. Convention date, Feb. 27, 1940. [Class 135] [Also in Groups XIII and XXXVII] Reversal from heating to cooling of the generatorabsorber vessels 10, 10a, Fig. 1, of dual absorption refrigerating systems working out of phase is effected by a single bellows member 22 in a chamber connected to sensitive elements 21, 21a located in or near the generatorabsorber vessels, the bellows member acting through a thrust rod 25 to rock a pivoted arm 26, having a snap-action spring 34, and thereby control a double switch 40, 41, 41a in the heating circuit and a double valve 37 in a circuit for the cooling medium. The cooling-medium is preferably an evaporating-condensing medium in a closed circuit including vessels, 16, 16a within the generatorabsorber vessels, condenser elements 18 and a reservoir 19 above the valve chamber 20. The thrust rod 25 is held by a spring 27 in a position to engage surfaces 30, 31 on the rocker arm 26. In one modification, Fig. 3, the actuating bellows 48 communicates with a chamber 45 in the cooling medium circuit and containing the rocker 26, a second rocking block 33a, and the valve rod 53. The switch is actuated by a rod 55 attached to the bellows 48 and passing out through a bellows packing 56. In another form, Fig. 4, the bellows 48 rocks a disc 66 with a snap-action spring 70, and the disc is connected with the valve, lever 74 through a pin and slot connection. The Specification, as open to inspection under Sect. 91 comprises also a construction Fig. 7 (Cancelled) (not shown) in which the actuating bellows carries a cylinder protruded to form a stop to hold the rocker in a neutral position until the pressure around the bellows is reduced after its actuation, when the movement of the rocker is completed by a spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-208503-A (GB)
Title: Improvements in connection with apparatus for distilling water
IPC: B01D1/12
Filed: 1923-02-05
Abstract: 208,503. Appareils et Evaporateurs Kestner. Dec. 16,1922, [Convention date]. Distilling w a t e r ; separate heater and evaporator apparatus.- In apparatus for distilling water in which the water circulates between a vapour separator 2, and a tubular heater 1, the feedwater is softened to prevent incrustation of the heating - surfaces. The feed-water, mixed with softening-agents such as lime or sodium carbonate in a device 9, falls on to a perforated or notched tray or overflow basin 11 supported in the vapour space, and thence into the circulating current. The water passes down a funnel 5 and upwards round the outside to a pipe 4 leading to the heater. Sediment deposited in the base of the vessel is withdrawn through a trap chamber or by a pump or otherwise.
Patent GB-1173842-A (GB)
Title: Improved Door Retaining Latch
IPC: E05B85/24
Filed: 1967-01-24
Abstract: 1,173,842. Latches. "BOMORO" BOCK-LENBERG & MOTTE K.G. 24 Jan., 1967 [28 Jan., 1966], No. 3442/67. Heading E2A. A latch, e.g. for car doors, comprises a base plate 8, adapted to be secured to the door edge, and a plate 8a, extending perpendicularly from the base plate and adapted to be secured against the inside surface of the door (in the right hand part of Fig. 1, the plate 8a is shown in the same plane as the base plate 8). A ratchet 9 is secured on a rotatable axle 5, which extends through the baseplate and carries a bifurcated bolt 4, Fig. 12. Upon door closure, the bolt engages a fixed striker pin 2 and rotates to a door-fastening position _in which it is retained by a pawl 17, pivoted at 21, engaging the ratchet 9. The bolt may be released from outside by depressing a push button 33 to rotate a release lever 13 about pivot 22, a surface 13a of lever 13 thus rotating an angle lever 15 through lug 15a, the angle lever being connected to the pawl by a pin and slot mechanism 18. To release the bolt from inside the car, a lever 25 is rotated about pivot 26, the lever 25 being connected at 23 to a plate 24, a lug 24a of which then contacts a lug formed on the pawl. A lever 12, pivoted on the bolt axle 5, carries the release lever pivot 22 and is engaged by the notched end of a safety lever 29. Clockwise rotation of the safety lever from the position shown results firstly, in a projection 29a abutting a projection 25a on the lever 25, thus preventing actuation of the latter, and secondly, in an anticlockwise rotation of the lever 12, which in turn moves the release lever 13 to a position in which a recessed surface 13b Fig. 1 is opposite the lug 15a, so that rotation of the release lever about its pivot no longer rotates angle lever 15 to disengage the pawl 17. If this clockwise rotation is imparted to the safety lever while the door is open, then upon door closure a pin 10 carried by the ratchet 9 will contact portion 16b of a lever 16 to rotate the latter about its pivot 21 and bring its other end 16a into contact with a lug 13c of the release lever, thus restoring the latter, the lever 12 and the safety catch to their former positions. However, if during this door closure, the push button 33 is held depressed, then the lever end 16a does not contact lug 13c and the levers 13, 12 and 29 remain in the doorlocking position. This door locking position can also be established by rotating the pushbutton 33. e.g. by means of a key, to move lever 13 downwardly and thus displace levers 12 and 29. When the door is in its fastened position, parts of a head 2a of the striker pin 2, are located behind the bifurcated bolt 4 to provide an anti-burst device. A flange 7a on a channel shaped member 7 is located, with respect to the collar 2a, to provide a similar effect.
Patent GB-1325831-A (GB)
Title: Conveyor system
IPC: B65G17/36
Filed: 1972-01-25
Abstract: 1325831 Xerographic drum cleaning XEROX CORP 25 Jan 1972 [28 Jan 1971] 3463/72 Addition to 1296764 Heading G2H Apparatus for recovering and recycling residual xerographic toner, as in Specification 1296764 (Xerox Ca-pn) includes a conduit 71 with a chain conveyer inside, made up of hollow balls 93 joined by links 97, and clearance holes 100 are provided in the balls to allow toner which enters through link apertures 95 to escape.
Patent GB-929327-A (GB)
Title: A separator for separating mist or liquid droplets from a stream of air or gas
Inventor: REAVELL JAMES ARTHUR
IPC: F22B37/28
Filed: 1962-01-30
Abstract: 929,327. Separating liquid particles from gases. KESTNER EVAPORATOR & ENGINEERING CO. Ltd. March 7, 1962 [Jan. 30, 1962], No. 3520/62. Class 123 (3). Apparatus for separating liquid droplets from a gas stream comprises a vessel 10 divided by a vertical filtering wall 15 extending downwardly from the vessel top and by a transverse wall 16 into an inlet and depositing chamber 13 having a particle-laden gas inlet 18 and a liquid outlet 11 and into an outlet chamber 14 having a drain tube 17 leading to the inlet chamber 13. As shown, wall 15 comprises three spaced baffle plates.
Patent GB-620979-A (GB)
Title: Improvements relating to cupping devices
IPC: A61M1/00
Filed: 1947-02-06
Abstract: 620,979. Cupping appliances. DEVELAY, C., and GALVIER, G. M. Feb. 6, 1947, No. 3553. Convention date, Feb. 25, 1946. [Class 81(ii)] A cupping device comprises a cylinder a with an apertured cover b and a piston c attached to a tube d extending through the apertured cover, closed by a cap g and containing a spring f which abuts at one end against the cap g and at the other against a bar e riding in slots running longitudinally of the tube d. The piston and tube d is latched in the depressed position by a clip g<SP>11</SP> pivoted to the cover b and engaging the top of the cap g.
Patent GB-386139-A (GB)
Title: Improvements in or relating to manufacture of rubber footwear
IPC: A43B23/02
Filed: 1932-02-06
Abstract: 386,139. Making rubber boots. GOODYEAR'S INDIA RUBBER GLOVE MANUFACTURING CO., Maple Street, Naugatuck, Connecticut, U.S.A.-(Assignees of Zonino, F. ; 173, Ward Street, Naugatuck, Connecticut, U.S.A.) Feb. 6, 1932, No. 3613. Convention date, March 7, 1931. [Class 17 (ii).] A method of assembling parts to form footwear elements comprises feeding in sheet form rubber or rubberized material 2 carried on a drum 1 to a belt conveyer 4, where at various stations 6 &c. material is superposed to form spaced footwear assemblies. Waste material is removed at a further stage by a heated knife, and the assemblies are pressed between rolling bands 22 before discharge for further treatment. The device is applicable to flat parts of rubber boots, such as boot legs, uppers, gaiter uppers, &c. The sheet stock 2 is passed over a glass plate 3 strongly illuminated from below to permit inspection for flaws. Opened-out leg forms 5 are placed on the sheet by an operator from a pile 6. Ankle pieces 7, 8, and strapping pieces 9 are assembled by a second operator from piles 10, 11, &c. Heel stays 13 &c. are added at further stations, and then the parts are cut or melted out by an electrically-heated knife. The parts are pressed together by a short endless belt 22 on rollers 23, 24. The driven roller 24 is resiliently mounted and pressed down on belt 4 and preferably co-operates with roller 25 below the belt. Roller 23 is stationarily mounted.
Patent GB-219639-A (GB)
Title: Improvements relating to railway traffic controlling apparatus
IPC: B61L23/16
Filed: 1924-02-12
Abstract: 219,639. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Lewis, L. V.). July 26, 1923, [Convention date]. Electrical systems, automatic; lamp signals.- Electrically operated railway signal devices are supplied with current directly from electron tube devices without the intervention of relays having moving parts. The relative phases and magnitudes of the voltages impressed upon the plate and grid of each tube are adjusted to give the required indications and are made dependent upon the traffic conditions. Generally the lamps are arranged in the plate circuits of the electron tubes and the grid voltage is controlled and may be either reversed or cut off entirely. Several systems are shown and described in detail, some of which include three indication lamps; in some cases lamps are energized during both parts of the alternating current cycle. An arrangement of transformers is described for reversing the phase of the track current without a relay having moving parts.. Fig. 2 shows the entrance end of a section with a relay transformer H supplied with alternating current from the far end of the section. With the section clear, the potential on the grid of the electron tube D<1> is such the current passes from transformer 16, through green lamp G, wire 10 and transformer winding 17, the inductive action of which is counterbalanced by that of the winding 17<a> in circuit with rectifying tube K. No current is therefore supplied to the red lamp. When the track is occupied, the transformer H, lamp G and winding 17 are de-energized and the red lamp R is illuminated. Fig. 4 shows a system in whicn the circuit of the green lamp G includes a transformer L which determines the potential of the grid of the second electron tube D<2> controlling the red lamp R. Fig. 6 shows an arrangement ior supplying current during both halves of the alternating current cycle to the lamp G by the use of two electron tube devices D<1>, D<2>, the grids of which are of opposite potential, the plate circuits being in parallel through the lamp. Systems giving " clear," " caution," and "danger " signals are described dependent upon reversal of phase of the track-rail circuit of the next section when the red lamp circuit is energized, this circuit including a reversed secondary winding ot the track supply transformer.
Patent GB-550211-A (GB)
Title: Improvements in rotary disintegrators of the disc type
IPC: B02C13/20
Filed: 1942-03-19
Abstract: 550,211 Impact pulverizers ; hook fastenings ; bolts. BEECH, A. S. March 19, 1942, No. 3686. [Class 59] [Also in Groups XXV] In a rotary disintegrator suitable for breaking up foundry sand comprising two or more rotating discs 22, 26 connected to rings 24, 28 respectively by spaced pins 30, 32, the pins 30, 32 are formed at their threaded ends 40 with rectangular shanks 46 to allow their insertion or removal laterally through keyhole slots 34 in the discs and rings. The outer ring 24 is formed on its inner periphery with a notch 50 which can be brought opposite each slot 34 of the inner ring 28 in turn to facilitate the removal or insertion of the inner pins. To give access to the rings the disintegrator casing is provided with an opening 66 fitted with a quick-release rubber cover 60 pivoted on a pin 64 at one end and secured at the other end by a threaded eye bolt 70 passing through a slotted tension block 78 carrying a hook 80 engaging a stop bar 82 on the casing.
Patent GB-1022247-A (GB)
Title: Drill
Inventor: DAUNTON DEREK
IPC: B23B51/04
Filed: 1963-01-29
Abstract: 1,022,247. Drills. SODERFORS HAMA A.B. Jan. 29, 1963, No. 3715/63. Heading B3C. A deep hole, or tube drill, comprises main cutting edges 2, 3, and secondary cutting edges 6, 9, the edge 6 intersecting the axis of rotation 5, as an acute angle a not exceeding 25 degrees, all of the cutting edges being backed off. The edges may be formed on the drill, or on inserts, and a hole 15 is provided for supplying oil.
Patent GB-256867-A (GB)
Title: Improvements in or relating to means for use in the inflation of pneumatic tyres
IPC: B60S5/04
Filed: 1926-02-10
Abstract: 256,867. Roper, W., and Sanders, E. F. Feb. 10, 1926. Stuffing-box joints, with valves.-In a pump connector of the type comprising a tubular body member 1 adapted to fit over the end of the valve tube 3 of a tyre and to receive an air supply nozzle member 6 adapted to be depressed with the body member 1 so as to compress a rubber &c. buffer 10 and thereby seal the joint between the valve tube and the nozzle member 6, the feed pipe 5 of said member 6 engages a cam slot formed in the bodv member 1 so that when it is partially rotated it will compress the buffer 10 and simultaneously cause the valve stem 9 to be depressed by a projection 8 provided on the nozzle member. The body 1 is preferably formed from a sheet metal blank, and is provided with an integral handle 7.
Patent GB-1202136-A (GB)
Title: Improvements in or relating to a metal cutting tool
IPC: B23B27/16
Filed: 1969-01-23
Abstract: 1,202,136. Cutting tools. VEREINIGTE DRAHTWERKE A.G. 23 Jan., 1969 [2 Feb., 1968], No. 3792/69. Heading B3T. A cutting tool comprises a tool holder 2 and a cutting tip 1, which is clamped on a seat 2b on the holder and wherein means is provided to prevent the cutting tip from slipping, when in use and clamped on the seat. The means comprises a pin 8 located in a hole 2g in the seat, the upper end 8a of the pin projecting above the seat and engaging in a depression 1a in the underside of the cutting tip. A slot 2e provided in the holder below the seat and parallel thereto permits the formation of a resilient tongue 2f which supports the pin and which in use urges the pin end into the depression la in the tip. The pin end and depression may be conical or spherical and are slightly offset whereby the force exerted by the pin effects the urging of the insert into the corner of the seat. A support 3 may be provided between the seat and the bit.