baber/WOPTO huggingface dataset:
Patent GB-794821-A (GB)
Title: Improvements relating to the production of webs or the like of fibrous material
IPC: D04H1/4209
Filed: 1954-10-08
Abstract: 794,821. Agglutinated fibrous sheet materials; laminates. SUD-WEST CHEMIE GES. Oct. 8, 1954 [Oct. 9, 1953], No. 29085/54. Class 140. [Also in Groups IX and XXVIII] Webs or layers of fibrous material containing a binding agent which can be activated by subsequent heating are made by suspending fibrous material and a binding agent, supplied, e.g., from hoppers 1 and 2, in a gaseous medium, e.g. air supplied by a pump 4, and causing the suspension to pass in a spiral path through chamber 12 and to be applied, e.g., after passage through semi-circular duct 13, to a porous or perforated separating surface, which may be in the form of a rotating drum 15. Deposition is assisted by the action of sub-atmospheric pressure on the other side of the separating surface. As shown, the suction side of the pump 4 is connected by a pipe 19 to a fixed tube 18 about which drum 15 rotates. A slit 20 in tube 18 communicates in turn with chambers 17 into which the interior of the drum is divided by radial partitions 16. The fibres on the drum pass under a pressure roller 22, through a removing element 23 formed with a slit, and may then be wound on a take-up drum, or, as shown, carried on an endless band screen 24 to a cutting or laminating device. A hood 27 disposed above the band screen 24 has on the side nearer the cylinder 15 an intermittently-operating knife which cuts from the fibrous web sections corresponding to the length of the hood. A number of severed layers may be superposed by connecting the hood 27 by a duct 34 to the suction side of a fan, the pressure side of which may be connected by pipes 35, 36 to a pressure hood 30 disposed below the screen to facilitate removal of the cut sections. When the required number of sections have been accumulated beneath hood 27, it is rotated in a horizontal circular path around an axis consisting of the other end of duct 34 which is vertical, and deposits the assembled sections on an endless belt which feeds the pads to further treatment devices, e.g. an oven, a calendering cylinder, a pair of rollers, or a press. The air for suspending the fibres can be heated in a heater 5. Two or more spirals may be formed in chamber 12 by feeding in a suspension of fibres and binding agent at circumferentiallyspaced points; or fibres and binding agent may be fed in through a duct at one point, while air is blown in at the other. A rotating scraper 40 for removing accumulations of fibres from the bottom of chamber 12 may be driven by the incoming suspension of fibres. The fibres may be rock wool, slag wool, glass wool, asbestos, textile or synthetic fibres or mixtures, and the binding agent may be a powdered phenolformaldehyde resole.
Patent GB-1438442-A (GB)
Title: Agricultural machine
IPC: A01B61/04
Filed: 1974-07-01
Abstract: 1438442 Overload release G NAUD 1 July 1974 [29 June 1973] 29125/74 Headings A1B and A1P An overload release mechanism is provided on an agricultural machine and allows unlocking of a tool frame 1 to allow pivotal movement on a chassis 2 of the frame 1 when an obstruction is met. The mechanism comprises two auxiliary hydraulic control jacks 12 joined via calibrated valve 41 and non- return valve 42 to a main control jack 27. When an obstruction is met pressure increases in the jacks 12 due to relative movement of the frame 1 and chassis 2 and hence also increases in the main jack 27 thus releasing a retaining element 21 of the frame 1 from a locking member 23, which is moved away from the frame 1 on pressure increase in the main jack 27 and returns by a spring when the obstruction is passed. Calibration valve 41 is adjustable to alter the unlocking pressure. In another embodiment the jack 27 is activated by an electro-valve operated by two monostats connected to the jacks 12, or by a manual switch.
Patent GB-135839-A (GB)
Title: Improvements in or relating to Optical Measuring Instruments.
Inventor: JOHAN DAHL
Filed: 1919-11-22
Abstract: 135,839. Dahl, J. Nov. 28, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Theodolites.-The telescope of a tacheometer &c. can turn about the horizontal axis AA, a disk 4 carrying three concentric curves being centred on the same axis, but remaining stationary while the telescope turns. The curves are so chosen that, one being the zero-curve, the intercepts between it and the other two give direct readings of height, distances, &c. without calculation.
Patent GB-757733-A (GB)
Title: Improvements relating to motorised spraying machines
Inventor: LAWRENCE NORMAN HILLSTED
IPC: A01M7/00
Filed: 1953-10-22
Abstract: 757,733. Crop sprayers. FOUR OAKS SPRAYING MACHINE CO., Ltd. Jan. 21, 1955 [Oct. 22, 1953], No. 29155/53. Class 69 (3). A wheeled chassis 1 carries a pump 5 driven by an engine 4 which supplies liquid to a transverse spray boom 12 from a cylindrical tank 3. The boom is carried at the ends of arms 11 mounted on diametrical pivots 9 so that the height of the boom above ground can be adjusted. A bracket 15 is secured to one of two members 14 extending between the arms and engages with a curved fin 7 attached to the rounded end of the tank. The fin has a series of spaced apertures 8 and the arms and boom are held in the desired position by a bolt inserted through holes in the bracket and a selected hole in the fin.
Patent GB-468327-A (GB)
Title: Improvements in and relating to strip feeding and aligning devices for recording machines
IPC: B41J11/30
Filed: 1935-12-30
Abstract: 468,327. Memorandum - appliances. GROVES, W. W. (Gilman Fanfold Corporation) Dec. 30, 1935, No. 29168 /36. Divided out of 468,284. [Class 16] [Also in Group XVI] In web-feeding devices for use in autographic registers and other recording-machines and comprising feed - pins mounted on a chain passing around sprocketwheels, one or more of the sprocket-wheels consists of a number of axially-spaced sections 59, 60, Fig. 3, and the pins 36 are secured to lateral brackets 34 on some of the chain-links 30. The brackets may be integral with transverse members 35. Preferably, the free ends of the pins are rounded and arranged near the pitch-line of the chain. The sprocket-wheel shafts 26 are mounted in a stationary block 52 which may be provided with a track 56 for supporting the brackets 34. A guide 37 for maintaining the pins in engagement with the webs S is formed with inclined ends, and a slot 38 for receiving the pins. The guide is formed on a plate 39 which is hinged to a support 41 and is engaged by a spring 42, the guide being adjustable by means of a screw 43.
Patent GB-484111-A (GB)
Title: Improvements in or relating to the colouration of textile and other materials
IPC: C09B29/08
Filed: 1936-10-27
Abstract: Azo dyes; cellulose esters, dyeing.-A dyestuff is obtained by coupling diazotized 2-chloro-4-nitraniline with N-di-(b -hydroxyethyl)-aniline or by treating with ethylene chlorhydrin the dyestuff 2-chloro-4-nitraniline --> aniline and is used for dyeing cellulose derivative, especially cellulose acetate, materials a deep wine-red colour resistant to fading. Compositions for use in the dyebath or in padding or printing preparations may be prepared by incorporating the dyestuff with dispersing or wetting agents such as turkey red oil, sulphuric acid esters of oleyl and other higher alcohols, alkylated naphthalenesulphonic acids or the dispersing agents described in Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819, or 273,820, [all in Class 15 (ii)].  The dyestuff may also be produced upon the materials.  Examples are given of (1) the production of the dyestuff by diazotizing 2-chloro-4-nitraniline, adding the diazo solution to a hydrochloric acid solution of N - di(b  - hydroxyethyl) - aniline and adding sodium acetate to complete the coupling, (2) the dyeing of a cellulose acetate knit fabric with a turkey red oil and soap dispersion of the dyestuff.  Specification 274,823, [Class 15 (ii)], also is referred to.
Patent GB-504134-A (GB)
Title: Improvements in or relating to the control of the lighting and the warning devices for vehicles
IPC: B60Q1/14
Filed: 1937-10-26
Abstract: 504,134. Mechanical switches without quick action. QUILLERY, H. P. M. Oct. 26, 1937, No. 29188. Convention date, May 10, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1938.] [Class 38 (v)] [Also in Group XXXVIII] In a switch for the combined control of the lighting and warning devices on a vehicle, a lever 36 carries teeth 45, 46 engaging in ratchets 48, 49 to rotate a plate 12 to alter the lighting, the lever being returned to its central position by a spring 42. The lever moves in a T- shaped slot, so that when in its central position it may be depressed to give a warning signal, the signal being different for different positions of the contact plate 12, and consisting of an audible signal or a change in the vehicle lighting. The battery potential is applied over spring 31 to contact strip 27 connected to a strip 22 wiping over contact studs (not shown) on base-plate 1 and in the four positions of the plate 12 gives, respectively, no effect, lighting of the side lamps, dipped head lamps and head lamps. Upon the lever 36 being depressed, the connection is broken with strip 27 and made to strip 28 connected to contact strip 23 to complete circuits to the town audible device, the dipped head lamps, the head lamps and the dipped head lamps respectively. When the lever 36 is further depressed, spring 31 contacts with terminal 10 connected to the road warning device. The contact strip 21 in the three last positions completes a circuit to the rear lamp. A window (not shown) is provided in the casing to indicate the position of the lighting switch. A spring-urged ball within the cylinder 19 co-operates with grooves on plate 1 to locate the plate 12. The Specification as open to inspection under Sect. 91 comprises also a combined switch mounted on the steering column, Fig. 5 (Cancelled), the lever 16 being rotatable to change the vehicle lighting, and upon the lever 12 being raised contacts A1, 3 close to give an audible warning or effect a change in the vehicle lighting. Further raising of the lever closes contacts A2, 9 to complete the circuit of the road warning device. In a further modification, the plates 1, 22 are slotted and the casing 20 is in two parts so that the device may be applied to the column without removing the steering wheel. This subject-matter does not appear in the Specification as accepted.
Patent GB-762109-A (GB)
Title: Improvements in and relating to the control of flow through a duct of powdered or granulated or finely divided or other solids in a gaseous or liquid medium
Inventor: PEARSON ROBIN
IPC: G05D7/01
Filed: 1953-10-22
Abstract: 762,109. Pneumatic conveyers. PARSONS & CO., Ltd., C. A. Jan. 8, 1954 [Oct. 22, 1953], No. 29228/53. Class 78 (1). The flow of finely-divided solids in a freely-flowing state, or in a state of suspension in a fluid, through an outlet 6 from a tank 1 to the combustion chamber of a gas turbine, is controlled by introducing into the inlet portion 7 of the pipe 6 a variable amount of fluid under pressure. The part 7 is porous, or formed with holes 12, Fig. 2, and is surrounded by a cylindrical casing 9 of larger diameter. High pressure air is admitted to the space 8 between the parts 7, 9 through a pipe 10, the amount admitted being controlled by a valve 11 which can be actuated manually or by the governor of the gas turbine. The pipe 6 discharges into a larger pipe 5 through which air passes from a compressor to the combustion chamber. The tank 1 has a porous bottom 2 through which air supplied by the pipe 4 passes upwards to fluidize the material.
Patent GB-1019983-A (GB)
Title: Means for coupling two or more parts including at least one part of circular cross section
IPC: F16L23/028
Filed: 1962-07-30
Abstract: 1,019,983. Pipe Joints. L. M. C. SEAMARK. July 25, 1963 [July 30, 1962], No. 29258/62. Headings F2G and F2H.  A coupling for two pipes 1, 2 or other parts, one at least being circular in section, comprises an inner split or slotted sleeve 7, having teeth 8 on its inner surface and buttress threads 9 on its outer surface, which is mounted on the circular section within an outer sleeve 4 which bas corresponding internal buttress threads and means to cause relative movement between the two sleeves with radial inward movement of the inner sleeve causing its teeth 8 to bite into the end of the pipe 2. As shown in Fig. 1 the sleeve 4 is a loose flange on the pipe 2 and the means for relative movement of the sleeves is provided by a number of nuts 10 and bolts 12 arranged around the flange to connect it to the fixed flange 3 of the pipe 1. A flexible sealing ring is provided in a recess 13. Figure 3 (not shown) illustrates an embodiment consisting of a nut threaded on to a sleeve surrounding the smooth stem of a bolt and having an external buttress thread and internal teeth as at 8 of Figure 1 which bite into the stem of the bolt when the nut is moved against the slope of the buttress thread.
Patent GB-249183-A (GB)
Title: Improvements in or relating to curtain supports
IPC: A47H13/10
Filed: 1925-09-05
Abstract: 249,183. Griffin, G. E. Sept. 5, 1925. Curtains, suspending.-The flange 2 of a curtain rail 3 is trough shaped and the roller 6 of the runner 5 is of disc-like form with a rounded periphery, so that in the event of a lateral pull on the runner the roller can pivot laterally about its place of contact with the flange and run without contacting with the flange or web of the rail. In a modification, shown in Fig. 5, the rail 3 has two trough shaped flanges 2. The rollers may be arranged in tandem and their peripheries knurled.
Patent GB-261777-A (GB)
Title: Heating devices with heat accumulators
IPC: F24B1/24
Filed: 1926-11-19
Abstract: 261,777. Popescu, T., Pais, A., and Pais, C. Nov. 19, 1925, [Convention date]. Addition to 258,413, [Class 126, Stoves &c.]. Electric stoves and furnaces. - Comprises constructions of cooking-stoves employing the heating devices forming the subject of the parent Specification, and relates inter alia, to the provision of electrical, steam, and other heating means alone or in combination. The stove shown in Fig. 1 comprises a heat-conducting and retaining block x forming a hot-plate and provided with a closed system of channels containing a heat-transmitting agent which is in the form of a saturated vapour at the operating temperatures. The block is mounted in a heat-insulated structure containing a solid-fuel grate 113, a removable gas burner 111, and an electric heater 125, the latter being in a chamber separated from the combustion space by an insulating wall 126. The gas burner may also be permanently or removably mounted in a separate compartment below the block x. The block may thus be heated by any one source or by a number simultaneously. Sliding heat-insulating plates 130 cover the portions of the hot-plate not in use, and an oven 106 is provided. Fig. 3 shows a modified construction occupying less space in which the plate x extend up one side and over the top of the oven 140, providing two hot-plate surfaces 141 and 142. Modifications are also illustrated in which the stove is of an angular or part annular form in plan to allow it to be set in a corner and also to enable all parts of the hot-plate to be easily reached by the operator. Figs. 9 and 10 show an apparatus comprising separate heating blocks x<1> which are heated from a common source and then taken to various points of use, and applicable for military, factory, and like purposes. The blocks are contained in heat-insulating casings the tops of which are formed with utensil openings with insulating covers 165. They' may be heated by means of electrical heaters 175 connected by plugs to a common supply, or by means of steam supplied from a pipe 168 to which they are temporarily connected by unions 173, the steam passing into one or more channels 171 in the blocks.
Patent GB-660977-A (GB)
Title: Improvements in and relating to the operation of x-ray apparatus
IPC: H05G1/56
Filed: 1949-11-16
Abstract: 660,977. Control systems for space discharge apparatus. GENERAL RADIOLOGICAL, Ltd., and QUITTNER, V. Nov. 16, 1949, No. 29331/49. Class 38 (iv). An electronic switching system for an X-ray tube 3 which permits control of the energization of the tube from a low-tension D.C. source 30 comprises a coupling transformer 24 having its primary 25 connected through a control switch 31 to the source 30 and a well-insulated secondary 26 connected between the cathode 15 and grid 16 of a control valve 14, the ratio of transformation and time constant of the transformer circuit being made such that the ride or fall of the primary current is prolonged so as to produce a voltage across the secondary of magnitude above the minimum necessary to render the tube 3 conductive and for the maximum desired duration of exposure. In the arrangement shown, upon closing switch 13 a decreasing negative voltage is applied to the grid of valve 14, rendering it non-conductive, whereupon a positive bias is applied to auxiliary valve 10 from resistance 21, and valve 10, receiving its energy from battery 19, then conducts and neutralizes the negative voltage from a high-tension source 18 applied to the grid 8 of the main switching valve 6 allowing it to conduct and permit high-tension current to flow through the X-ray tube 3. For kinematography purposes a rotary switch 32 is included in the primary circuit and synchronized with the film so as to make contact whilst the film is in the gate. Suppression of oscillations at the instant of switching may be effected by shunting a resistance 27 or a condenser 28 across the secondary 26 whilst a resistance 29 connected across the primary 25 reduces the voltage appearing across the primary. When the circuit is opened. The desired time constant is preferably obtained by working the transformer core along the steepest portion of its magnetization curve. The exposure may be effected by opening the switch 13 by reversing the necessary transformer connections (Fig. 4, not shown) and timing of the exposure may be obtained by simultaneously opening the circuit between a battery and condenser across the latter of which is connected a potentiometer resistance having part connected between the cathode and grid of a gas-filled valve shunted across switch contacts 31 so that the precharged condenser, holding off the valve, discharges through the potentiomter to a voltage value at which the valve conducts and completes the circuit between the switch contacts. Specification 637,082 is referred to.
Patent GB-382419-A (GB)
Title: Improvements in or relating to plastic compositions
IPC: C08L91/00
Filed: 1931-10-23
Abstract: A composition for coating fabrics &c. consists of about equal parts of rubber and a vegetable or mineral wax and a smaller quantity of gutta percha pitch, Burgundy pitch, vegetable pitch or bitumen. Metallic oxides may be added for colouring purposes. Examples specify montan wax and paraffin wax; ozokerite, carnauba wax, and ceresin are also referred to.
Patent GB-762854-A (GB)
Title: Improvements in or relating to windscreen wiper apparatus
IPC: B60S1/12
Filed: 1952-11-21
Abstract: 762,854. Windscreen cleaners. O'SHEI, W. E. Nov. 23, 1953 [Nov. 21, 1952], No. 29456/52 Class 138(1) [Also in Group XXVI] A windscreen wiper apparatus comprises at least two double-acting differential fluid pressure motors, conduits connecting opposite sides of the motors in parallel, a single automatic valve controlling both or all of the motors, means actuating the automatic valve by movements of one of the motors, means mechanically coupling the motors to act in unison and means for disconnecting the supply of fluid pressure from the other or one or more of the other motors whilst maintaining the motor, which moves the automatic valve, connected to the supply of differential fluid pressure. As shown, two paddle type suction motors 1 and 101 are conected in parallel so that the manual control valve 7 and automatic valve 5 of the motor 1 control the supply of fluid pressure to both motors, :and are mechanically coupled .to work in unison by levers 23, 123 and a link 29, all in the manner described in the co-pending .Specification 762,853. A valve means 50 is interposed in tubes 27a, 27b and 28a, 28b interconnecting the motor chambers and connecting respectively with ports 51, 52 and 53, 54, in the valve seating. Slidable over the valve seating is a valve member '55 provided with two transverse cavities 56, 57, which in the position shown inter- - connect the ports 51. 52 and 53, 54. The valve member 55 is also provided with two through apertures 58, 59 which when the member 55 is moved in the downward direction of the arrow A, vent the ports 52, 54 to atmosphere. At the same time the member 55 seats-off the ports 51, 53. The valve member 55 is also connected by a flexible cable 70 to a clutch means 73 so that when the member 55 is in its lower position, the shaft 103 of the motor 101 is disconnected from the wiper spindle 103a. The valve member 55 and the main manual control valve 7 may be operated by separate controls but as shown only, a single control rod 63. is used. A helical cam member '65 is keyed to the rod 63 so as to be rotatable therewith, but to be slidable relative thereto. A pin 66 connected at 67 to the member 55 engages in the helical slot of the cam member 65. Longitudinal movement of the rod operates a pivoted arm 8 and thus 'the valve 7, 'whilst rotation of the rod causes the downward movement of the valve member 55 and the declutching of the shaft 103 from the spindle 103a. With this arangement the wipers may be operated respectively by their motors or the main motor 1 can operate both wipers when the wiper friction is small, e.g. under very wet conditions and a faster wiper speed is desirable. The invention may be applied to more than two motors and the motors may be of the diaphragm type.
Patent GB-1508636-A (GB)
Title: Apparatus for indicating fluid flow velocity
IPC: G01S15/58
Filed: 1976-10-07
Abstract: 1508636 Ultrasonic fluid flowmeters UNITED KINGDOM ATOMIC ENERGY AUTHORITY 7 Oct 1976 [14 July 1975]  29517/75 Addition to 1422791 Heading GIG In an ultrasonic fluid flowmeter as described in the Parent Specification, pulses are produced at the difference frequency between the two VFO's and are counted by an up/down counter 67 whose direction of counting is determined by the output of circuitry which determines which of the two VFO's has the greater frequency. As shown, AND gates 61, 63 and 65 determine coincidences between pulses B derived from the output of one VFO and pulses A2, Al and A3 respectively derived from the output of the other VFO, the pulses on output 64 of flip-flop 62 being at the difference frequency and the output of flip-flop 66 determining the direction of counting. Means may be provided for reversing the setting of the counter and for displaying a negative symbol when the counter counts below zero.