baber/WOPTO huggingface dataset:
Patent GB-1461520-A (GB)
Title: Copolyamides containing caprolactam lauriclactam and 11-amino undecanoic acid
IPC: C08G69/08
Filed: 1974-05-10
Abstract: 1461520 Laminates PLATE BONN GmbH 10 May 1974 [12 May 1973] 18128/74 Heading B5N [Also in Division C3] Copolyamide contain units derived from the following monomers in the indicated proportions by weight: 20 to 40% coprolactam; 20 to 35% lauric lactam; 15 to 35% 11-aminoundecanoic acid, and 15 to 40% hexamethylene diamine salt of HOOC(CH 2 ) n COOH where n=4, 7, 8, 10 or 11. They are useful for heat sealing temperature sensitive substrates and may contain conventional additives, e.g. dyes, antioxidants, flame proofing agents, optical brighteners or fluorescent agents. They may be plasticized with up to an equal weight of a plasticizer, e.g. ArSO 2 NHR 2  where Ar is phenyl or tolyl and R 2  is H, C 1-6  alkyl or cyclohexyl, phenol carboxylic acid or esters such as butyl, octyl or lauryl p-hydroxybenzoate, or bisphenol A. They may be applied between the substrates as powders, film or fibres, for use with textile fabrics the are preferably formulated as powders in a weakly alkaline aqueous dispersion which may contain thickeners or stabilizers, e.g. polymeric organic acids or up to C 34  fatty acids. In specific examples adipic or azelaic acid is included as a molecular weight regulator to give products of melting ranges from 82 to 90 C. to 105 to 110 C. which are used to laminate a conventional interlining to polyester cotton fabric using a powder pointing machine and electric ironing press.
Patent GB-1472470-A (GB)
Title: Gas expanding polymers with hydrazodicarboxylates
IPC: C08J9/10
Filed: 1974-04-25
Abstract: 1472470 Hydrazodicarboxylates UNIROYAL Inc 25 April 1974 [26 April 1973 1 April 1974] 18133/74 Heading C2C [Also in Division C3] Blowing agents for polymers have the formula wherein R is a C 3-5  secondary or tertiary alkyl group and R<SP>1</SP> is a C 1-8  alkyl, a C 5-8  cycloalkyl, a C 6-10  aryl, a C 7-10  alkaryl or a C 7-10  aralkyl group. When R and R<SP>1</SP> are identical the compounds may be made by reacting a secondary or tertiary C 3-5  alkyl chloroformate with hydrazine. The compounds may also be made by reacting a carbazate with a chloroformate.
Patent GB-1159005-A (GB)
Title: Liquid Fuel Injection Pumps.
Inventor: ELLIS ARTHUR JOHN
IPC: F02M59/26
Filed: 1966-05-10
Abstract: 1,159,005. Fuel injection pumps. BRYCE BERGER Ltd. May 9, 1967 [May 10, 1966; April 20, 1967], Nos. 20632/66 and 18152/67. Heading F1A. The primary control edge 13 of the spill recess 14 of a fuel injection pump plunger 11 is stepped to give a throttling action on initial opening of the recess by the primary edge to the cylinder port 17. The stepped or secondary edge may be parallel to the primary edge or the distance between the two edges may increase progressively towards the top or bottom of the plunger and the portion between the edges may take various forms Figs. 2a-2d, (not shown). A normal control recess may be formed on one side of the plunger and a recess in accordance with the invention on the other.
Patent GB-637529-A (GB)
Title: Yarn furnishing mechanism
IPC: B65H51/10
Filed: 1947-07-09
Abstract: 637,529. Knitting-machines. SPECIALTIES DEVELOPMENT CORPORATION. July 9, 1947, No. 18189. Convention date, Sept. 6, 1946. [Class 74 (ii)] [Also in Group IX] A yarn - furnishing mechanism comprises a pair of feed rollers, one of which, 11, has a hard surface, and the other of which, 14, has a softer surface, an arm 20 which is pivoted at 21 and which supports the roller 14, a spring- urged plunger 26, which, acting on the arm 20 maintains it in a position whereby the surfaces of the rollers are in contact, and means, consisting of a lever 30 having a pin 31 which engages a cam face 32 of the arm 20, for moving the arm 20 to another position whereby the surfaces of the said rollers are out of contact with each other.
Patent GB-573440-A (GB)
Title: Improvements in and relating to automatic control valves actuated by hydraulic pressure
IPC: F15B21/00
Filed: 1943-11-03
Abstract: 573,440. Valves. TOWLER, J. M., and TOWLER, F. H. Nov. 3, 1943, No. 18197. Addition to 566,240. [Class 135] In a control valve according to the parent Specification, the transfer passages in the main valve plunger 31 for connecting the inlet 41 to the outlet 33 leading to the auxiliary mechanism are constituted by one or more grooves 51 which may be helical in form and which run from the lower (inner) end of the plunger, where they are permanently open to the inlet, to a point short of the outer end of the plunger. Inlet pressure liquid has access to the top of the dashpot piston 40 through the space existing between the sleeve 38 and the loosely-fitting stem 39 of the dashpot piston. Specifications 565,730 and 573,075 are referred to.
Patent GB-828953-A (GB)
Title: Polymerization process
IPC: C08F10/00
Filed: 1957-06-11
Abstract: Olefins are polymerized at pressures of not more than 500 p.s.i.g. in the presence of a catalyst comprising an alkyl aluminium compound and a reducible metal compound of Group IVa, Va or VIa, the polymerization being carried out in the presence of a diluent consisting essentially of a liquefied normally gaseous saturated hydrocarbon having 2-5 carbon atoms per molecule, the diluent being separated from the resulting solid polymer in a flashing step wherein a low enough pressure is maintained to flash off the diluent. Specified olefins are ethylene, propylene, n-butenes, isobutylene, butadiene and isoprene while ethane, propane, butane, isobutane and neopentane are the specified diluents.  The catalyst may be inactivated by adding an alcohol prior to the flashing stage.  The catalyst may be prepared by mixing the reducible metal compound with some of the alkyl aluminium compound, additional aluminium compound being added during the polymerization.  Apparatus for carrying out the process is described.
Patent GB-842612-A (GB)
Title: Concrete mixers
IPC: B28C7/08
Filed: 1956-06-14
Abstract: 842,612. Concrete mixers. URBAN, H. June 14, 1956, No. 18389/56. Class 86 In a rotary drum type concrete' mixer having a skip 15 which can'be hoisted up for placing concrete-making materials in the drum 1, the skip has an associated shogging hammer or hammers 20, keyed to a shaft 19 and operated by an adjustable pitman 16 to aid the emptying thereof. The drum, supported by a cradle (not shown), is mounted in a framework comprising structural members 2a, 2b, 2c and two channel members 21 attached to a pair of sloping stays 14, the members 21, 14 being provided with struts 21a, 14a, respectively; it is rotated by a shaft 3 through bevel gearing 4, 4a, and its supporting cradle permits it to be tilted about a horizontal axis. The skip is adapted to be hoisted by a cable 11b which is attached to its rear portion and passes over a guide pulley 11c to a winch 11a a driving flange 10 of which can be made to engage a driving cylinder 6 on the shaft 3, and during such movement front and rear wheels 15a, 15b on the skip run in and on, respectively, the channel members 21 which constitute rails. At the upper position the wheels 15a. engage in the downwardly sloping tops of the rails 21, whereupon continuing tension of the cable 11b causes the skip partly to somersault forward. The hammers 20 are then operated by rocking the shaft 19 through the pitman 16, by an eccentric 16b on the shaft 3 to cause them to jolt the front wheels 15a of the skip.
Patent GB-1415987-A (GB)
Title: Keyboard instrument player system
IPC: G10H1/00
Filed: 1974-04-26
Abstract: 1415987 Automatic musical instruments R H PETERSON and R A FINCH 26 April 1974 [26 April 1973] 18416/74 Headings G5J and G5X A keyboard instrument system comprises an automatic rhythm device 108 controlled by an on/off switch 114 and giving an output from loud-speaker 152, an organ tone generating system 125 controlled by organ key switches 122 and giving an output from loud-speaker 127, and means for recording and playing back the output of the rhythm device and position of the key switches during a performance so that the performance can be reproduced automatically. During the performance the position of the switch 114 and organ key switches is encoded by a digital encoder 130 and recorded on the first track of a magnetic record medium while the output of the automatic rhythm device is recorded on the second track; during playback the output of the first track is decoded by the digital decoder which operates electronic switches connected in parallel with the organ key switches 122 to duplicate the original organ performance, and simultaneously operates solenoid 147 if switch 114 was originally " on " to playback the recorded output of the automatic rhythm device.
Patent GB-151134-A (GB)
Title: An improved ointment
IPC: A61K47/00
Filed: 1919-07-25
Abstract: 151,134. Brien, M. ni. July 25, 1919. Ointments.-An ointment is prepared by dissolving mercury in nitric acid, adding the solution to a mixture of solid petroleum and liquid petroleum, and finally adding small quantities of oil of cajuput and eosin. According to the Provisional Specification, vaseline is used in place of the solid and liquid petroleum.
Patent GB-514595-A (GB)
Title: Process for improving nickel-beryllium alloys
IPC: C22C19/00
Filed: 1938-01-26
Abstract: 514,595. Alloys ; annealing. SERI HOLDING SOC. ANON. Jan. 26, 1938, No. 18564/39. Convention date, June 30, 1937. Divided out of 513,773. Drawings to Specification. [Classes 72 and 82 (i)] Nickel alloys contain 1.4-1.7 per cent. of beryllium, and also one of the following : 0.3-1 per cent. of molybdenum, up to 3 per cent. of tungsten, up to 2 per cent. of tantalum, or up to 5 per cent. of chromium, with or without up to 4 per cent. of iron. The alloys may be quenched from 1,000-1,020‹C. and annealed, for example, at 485-550‹C. This may be followed by magnetic or electric treatment, e.g. with supersonic waves. Specification 404,012 and U.S.A. Specification 1,941,368 are referred to. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specifications 513,773, 514,593 and 514,594. This subject-matter does not appear in the Specification as accepted.
Patent GB-1436662-A (GB)
Title: Photographic camera
IPC: G03B7/085
Filed: 1974-04-29
Abstract: 1436662 Cameras FRANKE & HEIDECKE GmbH [trading as ROLLEI-WERKE FRANKE & HEIDECKE] 29 April 1974 [13 July 1973] 18679/74 Heading G2A On depressing a shutter release 10 the diaphragm 1 closes right down and then re-opens to a value determined by a photo-receptor 4. This obviates the problem of accurately halting a rapidly closing diaphragm. As shown, depressing release 10 pivots a lever 9 which via a pawl 15 pivots a lever 8 connected by a pin and slot 7a, 7b to a plunger 3. Plunger 3 moves a plunger 2 to stop down the diaphragm 1. Movement of lever 9 also moves a lever 17 having teeth 17b which rotate a pawl 18 clockwise. Pawl 18 is connected by a spring 21 to a cam disc 22 which rotates with pawl 18 until an electromagnetically operated lever 6 controlled by the photo-receptor 4, pivots to latch cam disc 22 in a position memorizing the required diaphragm value. The diaphragm continues to close until it reaches its minimum aperture. In this position pawl 18 rotates past a locking detent 19 and pawl 15 is rotated by a stop 15b to free lever 8 from lever 9. A spring 28 then returns plunger 3 and lever 8 to re-open the diaphragm until plunger 3 abuts the cam disc 22. A cord 24 connects a diaphragm indicator pointer 25 to the disc 22. For SLR cameras a measuring key (11), Fig. 3 (not shown) is provided to operate lever 9, the key also operating a lever (30) which displaces the cam disc 22 from the path of the plunger 3 so that the diaphragm returns to its fully open position, the pointer 25 indicating the value of the aperture that would have been set.
Patent GB-583142-A (GB)
Title: Improvements in or relating to coating insulating surfaces with metal
IPC: C04B41/51
Filed: 1944-09-29
Abstract: 583,142. Heating by induction. - STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Sept. 29, 1944, No. 18686. [Class 39 (iii)] [Also in Group XXXVI] A metal coating is fired on to a ceramic base by the use of high-frequency eddy currents, e.g., by locating an inductor coil in proximity to the metal, the ceramic being independently heated by means of a high-frequency electrostatic field. The frequency for the eddy-current heating may be 1 to 5 Mcs. and that for the dielectric heating 20 Mcs.
Patent GB-1544680-A (GB)
Title: Digital control system for an electro discharge machine
IPC: B23H7/20
Filed: 1976-05-07
Abstract: The control arrangement serves to control an electrical discharge machine tool on the basis of commands delivered by a punched-tape reader (1) via a decoder (10). The machine tool has a work table which can be moved in two coordinate directions X and Y. The tool can be moved in the third direction Z perpendicular to the two said directions. A device (13) for differentiating the control commands is attached to the output of the decoder (10), this device (13) being connected firstly via a device (14) for ending the movements of the work table to a control block (12) and secondly to a control device (2) for the reader (1). A further input of the device (14) for ending the table movement is connected via a monitoring device (49) for the position of the tool electrode in the direction of the Z-coordinate to a comparator (47) for the position of the tool electrode. The monitoring device (49) for the position in the direction of the Z-coordinate is attached via an electronic amplifier (50) to a feed regulator (51) for the tool electrode. A further output of the device (14) for ending the table movement is attached to the control device (2) for the reader (1). A control arrangement of this type enables the entire working sequence of the electrical discharge machine tool to be automated. <IMAGE>
Patent GB-279544-A (GB)
Title: Improvements in or relating to a method of and means for separating solids or semi-solids from liquids by drying or concentrating
IPC: B01D1/18
Filed: 1926-07-27
Abstract: 279,544. Reavell, J. A. July 27, 1926. Liquids, treating with gases.- Apparatus for evaporating liquids comprises a chamber a into which the liquids are sprayed by an atomizer b. A heated current of gas is introduced through a pipe g and is given downward helical motion by passage through an annular chamber h, Fig. 2, having slots i provided with baffles i or through annular conduits m formed with ports n. The gas current after deposition of the solidified particles is removed between an annular baffle o and the lower wall of the vessel a. A cold current of gas is blown through a pipe e on to the atomizer b to prevent over heating and deposition of solid particles thereon.
Patent GB-480931-A (GB)
Title: Improvements in and relating to paper cutting appliances
IPC: B26D5/04
Filed: 1937-07-06
Abstract: 480,931. Cutting paper. HAUBOLD AKT.-GES., C. G. July 6, 1937, No. 18732. Convention date, Dec. 15, 1936. [Class 31 (i)] In a cutting-appliance in which paper is cut longitudinally by co-operating cutting discs 2, 3, the upper disc 3 is mounted in a bearing 5 which can be rocked about an axis 6 to move the cutter to an inoperative position 3a. The bearing is rocked by a handle 14 and held in various positions by a spring-pressed detent 15 engaging one of a number of notches in the bearing support 13. The support 13 is carried by a rod 7 slidable and rotatable in a guide 8 which is adjustable along a rod 9 whereby the cutter may be adjusted angularly, vertically and horizontally. The cutter 3 is urged by a helical spring ring 4 against the cutter 2.
Patent GB-146862-A (GB)
Title: Improvements in or relating to artificial respiration apparatus
IPC: A61M16/20
Filed: 1920-07-05
Abstract: 146,862. Drõgerwerk H. & B. Drõger. April 10, 1916, [Convention date]. Respiration, appliances for promoting.-Relates to apparatus of the kind described in Specifications 20182/08 and 23109/13, wherein the flow of oxygen through a system of passages fitted with a reversing valve and connected to a face mask causes both forced inhalation and forced exhalation, and consists in the use of a reversing valve so constructed that in addition to positions for forced respiration it may be adjusted for the supply of oxygen for natural breathing. Fig. 1 shows the general arrangement of the apparatus, Fig. 2 the oxygen nozzle d, circulating passage i, face-mask connexion f, and four-way reversing valve e with the valve plug g in the position for forced inspiration. Fig. 5 shows a modification in which the circulating passage and reversing valve are arranged adjacent the mask m, the plug g being in the position for natural breathing.
Patent GB-818777-A (GB)
Title: Method of manufacturing water or hydrogen sulfide rich in deuterium
Inventor: HARTECK PAUL
IPC: C01B5/02
Filed: 1956-06-18
Abstract: <PICT:0818777/III/1> <PICT:0818777/III/2> <PICT:0818777/III/3> Water or hydrogen sulphide rich in deuterium is manufactured by effecting transfer of deuterium between liquid hydrogen sulphide and water in a cyclic system connecting two zones at different temperatures in both of which the water and liquid hydrogen sulphide streams flow in countercurrent and intermingle enriched liquid being withdrawn between the zones.  In Fig. 1, the water is circulated by pumps 3, 4 through heat exchanger 11, heater 15, hot tower 1, say at + 40 DEG C. where D2 is transferred from H2O to H2S, heat exchanger 11, refrigerator 13, and cold tower 2, say at -40 DEG  C., where D2 is transferred from H2S to H2O, by pipes 5, 6, while liquid H2 is circulated by pumps 7, 8 and pipes 9, 10 through heat exchanger 12, refrigerator 14, cold tower 2, heat exchanger 12, heater 16, and hot tower 1.  The pressure in the system is sufficient to maintain the H2S liquid.  The water should contain a substance to lower the freezing point e.g. calcium chloride, and may also include a water-miscible inert organic liquid, e.g. alcohol, to make the heat capacities of the H2O and H2S streams approximately equal.  The rate of flow of H2S may be 1000 gals./min. and of water 200 gals./min.  A small stream of product is withdrawn at 17, and deuterium is replaced by withdrawing a small stream of H2S at 24 and passing it through an exchange unit 25, at the same temperature as tower 1, in contact with a counterflow of deaerated water from 26, before return at 28.  The water passes to separating unit 30 where H2S is recovered and compressed and returned to the cycle at 32.  The stream of enriched H2O 17 may be passed to an electrolytic enrichment unit 19, from which depleted water is returned through 20, or to further dual temperature enrichment units.  In Fig. 2 the stream 17 is led into hot column 11 of a system having cold column 21 in which liquid H2S and H2O are circulated in countercurrent as in Fig. 1, but the capacity of which is much smaller.  The enriched water is withdrawn to distillation desorption apparatus 40 in which H2S is removed as a gas, compressed, and returned to the circuit at 42, and a water stream containing all the freezing point depressant is recovered at 43 and returned to the water cycle at 44.  The enriched water flows through pipe 49 to electrolytic enrichment unit 45 containing several cells 46, 47, 48 (Fig. 3) from which deuterium oxide is recovered at 50, while the H2 and D2 evolved are converted to oxide by air or O2-enriched air in reactors 51, 52, 53, from which the condensates are returned to the preceding cell or, in the case of 51, to tower 11 at 55.  In an alternative arrangement (Figs. 4 and 5, not shown) heavy water is produced in a similar system, but enriched H2S is transferred from stage to stage. Specification 818,421 is referred to.
Patent GB-596821-A (GB)
Title: Improvements in apparatus for analysing vibrations in propellors or the like of aircraft
IPC: G01H1/00
Filed: 1945-07-21
Abstract: 596,821. Electric control systems. COWLEY, W. L. July 21, 1945, No. 18759. [Class 40 (i)] [Also in Group XXXVI] In apparatus for giving indications of the frequency and amplitude of transient vibrations such as those -occurring in an aircraft propeller, a strain gauge supplies signals to an amplifier valve provided a regenerative R.C. phase-shift feedback circuit and the potential and phase differences in the feedback circuit are employed to obtain indications of the quantities. As shown, an amplifying stage A passes the signals on to a regeneratively connected valve B. Phase meter PM detects the phase difference, which is assumed proportional to the incoming frequency, across the intermediate capacitor K2 of equal ganged variable capacitors K1-K3 and influences a beam of light falling on photo-cell PEC, the output of which is applied to an oscilloscope I to give an indication of frequency. The voltage across resistor R3 is applied to valve C so that its anode current which flows through oscilloscope I is proportional to the voltage across R3, this being assumed to be proportional to frequency and amplitude. The current from PEC is, however, also used to modify the indication given by the anode current of C. so that it is solely proportional to amplitude. To analyze an incoming signal, the ganged condenser is adjusted until the frequency at which maximum regeneration will occur is approximately that of a component of the incoming signal. If the control is calibrated in this quantity, the incoming frequency can be deduced from the phase shift. This is repeated for the various components. To increase the selectivity of the feedback circuit additional R.C. elements may be added to the feedback circuit.
Patent GB-530594-A (GB)
Title: Improvements in and relating to machines for grinding the threads of thread cutting tools
IPC: B24B3/18
Filed: 1939-06-28
Abstract: 530,594. Grinding screw-threads. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. June 28, 1939, No. 18794. Convention date, July 18, 1938. [Class 60] Trueing wheels.-Machines, as described in Specification 502,123, for grinding the threads of taps, screw-thread milling-cutters &c. have two cams, one for trueing the grinding-wheel to the required profile and the other for imparting the required backing-off when grinding the work. The work 20 is mounted between centres in a slide 16 fed by a lead screw 13 driven by change gearing from the driving spindle 8 and the grinding-wheel 21 is mounted on a slide 33 moving transversly to the slide 16, under the control of a rod 32 and servometer 31 from a control member 113. A cam shaft 3 geared to rotate at the same speed as the spindle 8 carries two cams 18, 19 acting on rollers 98, 99 respectively on a bar 97 controlled by a spring 120 in a casing 100 adjusted by a lever 100a. The bar carries a hinged frame 101 carrying rollers 103, 102 co-acting with the member 113 and with flat surfaces 107, 108 on pivoted bars adjusted by micrometer screws 109, 110. The trueing tool 40 is carried by the tailstock. When it is desired to true the wheel for grinding a particular type of thread the cam 18 corresponding to that thread is fixed on the spindle 3 the lever 100a is adjusted to bring the roller 98 into contact with the cam and the slide 16 is positioned so that the trueing tool 40 is opposite to the wheel 21. The combined action of the cam 18 and lead screw 13 then trues the wheel to the shape required. When it is required to grind a tap &c., a cam 19 corresponding to the number of flutes and shape of relief required is fitted and the lever 100a operated to bring the roller 99 into contact with the cam, the slide 16 being positioned so that the wheel 21 is opposite the work 20. A single cam 18 or 19 suffices for all pitches of the same type of thread and for all sizes having the same number of flutes the adjustment according to pitch or size being made by the micrometer screws. In a modification the rollers 102, 103 are carried by a hinged frame on a bar guided at each end and linked to the bar 97. If plain screw threads are to be ground the lever 100a is set in the central position and both cams are inoperative.