baber/WOPTO huggingface dataset:
Patent GB-1518260-A (GB)
Title: Semiconductor switching circuits
IPC: H03K17/00
Filed: 1975-09-12
Abstract: 1518260 Inverters NIXDORF COMPUTER AG 12 Sept 1975 [13 Sept 1974] 48661/77 Divided out of 1517545 Heading H2F [Also in Division H3] In a semiconductor switching device 41 on D.C. supply 43, switching repeatedly inductor 45 possibly in series with capacitor 46 and load 48, already protected by reverse diode 47 across the inductor, average power dissipated in the switch during the semiconductor decay period on switch-off is minimized by a reversepoled diode 49 in series with capacitor 50 connected across inductor 45 and load 48, with a charging circuit comprising at least forward diode 53 and second inductor 54 connected either to a fixed potential or to the junction of a second combination of capacitor 51 and reverse diode 52. On switch-ON capacitors 50, 51 charge via diode 53 initially in series to supply voltage, but inductor 54 rings and overshoots so that each capacitor is charged near to supply voltage. On switch-OFF, e.g. 33 Á.sec. later, the charge maintains near supply voltage on inductor 45 beyond the decay period of transistor 41, reducing the voltage across the transistor 41, and hence the mean power dissipated. Two such circuits may be combined in a pushpull inverter (Fig. 2), the switched inductors being two windings 23, 24 of a transformer; the ringing inductors 39, 40 being taken to a fixed potential, possibly being combined. Damping resistors across diodes 37, 38 are helpful, together with an RC circuit 31, 32 to connect the junction of diodes 29, 30 to a fixed potential. A.C. output is taken from a winding not shown.
Patent GB-1031350-A (GB)
Title: Improved coil former
Inventor: WARD HENRY DEWICK
IPC: H01F5/02
Filed: 1963-12-12
Abstract: 1,031,350. Coil formers. ERICSSON TELEPHONES Ltd. Jan. 1, 1965 [Dec. 12, 1963], No. 49131/63. Heading B8M. [Also in Division H1] A coil former comprises two co-operating parts each consisting of an end flange and a projecting portion, the projecting portion of one part being hollow and capable of receiving the projecting portion of the other part. The external surface of the projecting portion of the one part is preferably cylindrical, the internal surface being of frusto-conical form with the narrow end adjacent the end flange which has a hole bored therethrough of diameter equal to that of the narrow end of the internal surface. The other part has a frusto-conical external surface of substantially the same dimensions as the internal surface of the one part but with the broad end adjacent the end flange. A cylindrical bore of diameter equal to that passing through the end flange of the one part passes through the end flange and projecting portion of the other part. The two parts are preferably held together by friction, but adhesive may be applied. The end flange and projecting portion of each part are preferably moulded integrally from plastics materials, and are of polygonal cross-section.
Patent GB-993685-A (GB)
Title: Friction device operating mechanism
IPC: B60T17/16
Filed: 1963-12-13
Abstract: 993,685. Brakes operated by fluid pressure. WAGNER ELECTRIC CORPORATION. Dec. 13, 1963 [May 31, 1963], No. 49272/63. Headings F2E and F2F. An operating mechanism for a friction device comprises a housing 16 in which slides a piston 36 normally urged to move in the direction of its working end 60 by springs 63 and 64, displaceable means 68 engaged between the piston, at 67, and the housing at 43, to prevent the said movement, an expansible fluid pressure chamber 55 in the housing and means responsive to fluid pressure therein above a predetermined amount to maintain the displaceable means 67 in engagement. The mechanism forms part of an actuator 9 which operates a slack adjuster 15 through a rod 34. A compressor 2 is connected at 42 to the actuator by way of a reservoir 6 and a control valve 4. The valve 4 can be turned to vent the actuator from the orifice 42 through the outlet 11 whilst cutting it off from the reservoir 6. The reservoir 6 is also connected to the actuator at 38 by way of an operating valve 13. A spring 35 keeps the inner end of the rod 34 pressed against a diaphragm 33 which itself rests on the front face 60 of the piston 36. In normal operation the valve 13 is used to admit pressure to a space 37 to cause the diaphragm to move the rod 34 and operate the slack adjuster. A hollow piston 50 is slidable in recesses 39, 40 in a hub 30 on the housing 16 against the force of a spring 56. Pressure admitted to a space 55 through the orifice 42 keeps the piston 50 in the forward position shown in Fig. 2 with the spring 56 compressed. In this position balls 68, which are the aforementioned " displaceable means," are retained by the counterbored front end 58 of the piston 50 in a groove 67 in an extension 65 of the piston 36 which passes through the piston 50, thereby locking the piston 36 to the housing against the force of springs 63 and 64. If, by operation of the control valve 4 or otherwise the pressure in the space 55 falls below that necessary to counterbalance the spring 56, the piston 50 will move back to abut a face 41 on the housing (Fig. 2, not shown). This will free the balls 68 from the groove 67 so that the springs 63 and 64 move the piston forward, and with it the diaphragm 33, to operate the slack adjuster. To withdraw the pistons to their original positions it is necessary first to admit pressure into the space 37 so as to separate the diaphragm 33 and the piston face 60. Pressure admitted to the space 55 will then move the piston 50 forward against the spring 56 so that it will again retain the piston 36 locked back in the housing. For manual adjustment of the piston 36 a screwed stud, normally accommodated at 73, can be screwed through a hole 66 in the housing into a screwed recess 69 in the end of the piston extension 65. A dust shield 71 is provided.
Patent GB-1533298-A (GB)
Title: Tape recorder control arrangement
IPC: G11B15/02
Filed: 1976-11-26
Abstract: 1533298 Tape-recorder controls ETAB PUBLIC DE DIFFUSION "TELEDIFFUSION DE FRANCE" and FRANCE MINISTRY OF POST AND TELECOMMUNICATIONS 26 Nov 1976 [28 Nov 1975] 49459/76 Heading G5R In a tape recorder adapted for programmed or remote control, each function is activated by means of a respective rod 27 driven by its associated control lever 6 carrying a solenoid 12 and a tumbler 15; brief energization of a selected solenoid 12, Fig. 4, rotates its associated tumbler 15 into the path of a cam 17 which is driven by an electric motor through one revolution to push the tumbler 15 and hence the control lever 6 into an operative position, Fig. 5, in which the lever 6 is releasably locked by a locking bar 31, Fig. 6, and the solenoid is then de-energized to return the tumbler 15 to its rest position, Fig. 7.
Patent GB-1092258-A (GB)
Title: Photographic colour processing method
Inventor: WRISLEY KENNETH LEE
IPC: G03C7/407
Filed: 1964-12-09
Abstract: 1,092,258. Processing photographic colour materials. EASTMAN KODAK CO. Dec. 9, 1964 [Dec. 9, 1963], No. 50076/64. Heading G2C. A multi-layer colour-coupler-incorporating photographic silver halide material is colourdeveloped, treated with a stop-bath containing bisulphite ions, then with a bleach stabilizer containing alkali metal and/or ammonium ions, ferricyanide, bichromate and thiocyanate ions, and finally with a stabilizer containing alkali metal and/or ammonium ions, bisulphite and thiosulphate ions. A washing operation is not required at any stage and the process may be used for rapid processing of coloured oscillograph records.
Patent GB-1087727-A (GB)
Title: Improvements in or relating to sulphamyl-benzoic acid amides
Inventor: JUCKER ERNST
IPC: C07D295/32
Filed: 1964-12-11
Abstract: Novel sulphamoyl benzamides of the formula <FORM:1087727/C2/1> wherein X is -O- or -CH2- and R1 and R2\t are each C1- 4 alkyl radicals are made by reacting a 2,4-dichloro-5-sulphamoyl-benzoyl halide with the appropriate N-amino dialkyl piperidine or morpholine, preferably in an inert solvent in the presence of an acid-binding agent.  Pharmaceutical preparations having anti-hypertensive activity comprise the above compounds and an inert carrier, in forms adapted to enteral or parenteral administration e.g. tablets, drage<\>aes, syrups, injectable solutions or suppositories.
Patent GB-1023880-A (GB)
Title: Improvements in the manufacture of cushions and the like
Inventor: HARPER DAVID AUGUSTINE
IPC: B29C51/16
Filed: 1963-12-23
Abstract: 1,023,880. Seat covers; upholstery. STOREY BROS. & CO. Ltd. Dec. 21, 1964 [Dec. 23, 1963], No. 50724/63. Heading A4M. A loose cover for a vehicle or other seat and having an underlayer of a knitted fabric and an outer layer 18 of a thermoplastic material is formed by stretching the under layer over a rigid wooden former 22, placing an outer layer 18 formed from a sheet 26 of plasticized polyvinyl chloride coated with heat sensitive adhesive 28 over the under layer, the sheet 26 being clamped in a frame 30 to form with the table 24 and sides 32 of the machine a sealed region 34, heating the sheet 26 by heaters 38 and evacuating air from the region 34 through conduits 36 to suck the layer on to the underlayer and bond it thereto. A sheet of foam plastic 42 may be locally secured to the cover by high frequency welds 44 and may be secured to the seat padding 50 by adhesive 54, the edges of the cover 16 being wrapped around the edge 48 of the seat belt and a resilient channel member 56 clipped over the edges (Fig. 6).
Patent GB-1391135-A (GB)
Title: One step synthesis of caprolactam
IPC: C07C67/00
Filed: 1973-11-02
Abstract: 1391135 Caprolactam SUN RESEARCH & DEVELOPMENT CO 2 Nov 1973 [3 Nov 1972] 50948/73 Heading C2C Caprolactam is prepared by contacting cyclohexanol with ammonia and oxygen or air in the presence of a catalyst which is a salt of a group IA or IIA metal and a peroxide initiator at an elevated temperature. Exemplified group IA and IIA metal salts are the halides and thiocyanates of Li, Na, K, Mg, Ca, Sr and Ba. Suitable peroxide initiators are methyl ethyl ketone peroxide and benzoyl peroxide.
Patent GB-1489870-A (GB)
Title: Sensing arrangements for fluid flow meters
IPC: G01F1/32
Filed: 1975-01-28
Abstract: 1489870 Measuring fluid-flow EMI Ltd 28 Jan 1975 [3 Nov 1973] 51141/73 Heading G1R A fluid flowmeter sensing arrangement comprises first and second bluff bodies 106, 109 spaced apart over at least part of their cross-tube length, the overall length of the bodies and gap in the direction of flow being no greater than the height of the upstream body 106 as seen in Fig. 1(a). The tube is rectangular in section and may be tapered in the region of the bodies, Figs 2 and 3 (not shown). Sensors e.g. strain gauges may be arranged in the gap or downstream of body 109.
Patent GB-1278806-A (GB)
Title: Improvements in and relating to the production of octadienes
Inventor: WRIGHT DONALD
IPC: C07C2/74
Filed: 1969-10-17
Abstract: 1278806 Octadienes IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Oct 1970 [17 Oct 1969 28 April 1970 27 July 1970] 51151/69 20368/70 and 36198/70 Heading C5E 1,6- and/or 1,7-octadienes are prepared by contacting one or more acylic conjugated diolefins with Pt, Pd, Rh, Ru, Os or a compound thereof in a polar solvent in the presence of a reducing agent. The reaction, presumably a dimerization and selective hydrogenation, may be effected at 20-200‹ C. The reducing agent may be gaseous H 2  but is preferably a liquid miscible with the solvent such as hydrazine, formaldehyde, a lower alcohol or, preferably, formic acid. Suitable catalysts are the chlorides, carboxylates and complexes of Pt and Pd. The preferred solvent is DMF. Examples describe the preparation of 1,6- and 1,7-octadiene from butadiene; 3,7-dimethyl octadiene-1,6 from isoprene; and 3-methyl octadiene-1,6 from a mixture of butadiene and isoprene Vinyl cyclohexane is formed as a by-product in some of the examples. When effected in a stainless steel reactor a copper salt or a phosphine may be added as catalyst promoter.
Patent GB-1366076-A (GB)
Title: Bale pockets
IPC: A01F25/13
Filed: 1971-10-27
Abstract: 1366076 Covering bales S KORONKA 27 Oct 1971 [28 Oct 1970] 51159/70 Heading E1A Four pairs of edges 5, 6 of a flat sheet of black or transparent polythene are joined, by welding, sticking, or stitching to produce a parallelepipedic pocket having a rectangular opening at its bottom and which is suitable for covering bales of hay, straw or the like. In the pocket the joins are thus disposed obliquely in two opposite side walls; the joins in each side wall converge from adjacent corners of the top surface of the pocket to tie straps and loops; the tie straps can be tucked between rows of bales or tied around the bales to secure the pocket; weights may also be hung on the loops. The joins may be reinforced with the material of the tie straps.
Patent GB-1102847-A (GB)
Title: Estimated tap temperature calculator for basic oxygen furnace
IPC: C21C5/30
Filed: 1966-11-18
Abstract: 1,102,847. Measuring temperature electrically. LEEDS & NORTHRUP CO. Nov. 18, 1966 [March 14, 1966], No. 51705/66. Heading G1N. The temperature that the melt in a basic oxygen furnace will attain at the moment of tapping is estimated continually during the refining process by determining electrically the actual temperature of the melt, adding to this a signal representative of the temperature rise associated with the oxidation of all the carbon in the melt and subtracting from this a signal representative of the temperature rise associated with the oxidation of the tap carbon content, i.e. the carbon remaining in the melt at the moment of tapping. For low carbon melts the temperature rise associated with the oxidation of all or the tap carbon is non-linearly related to the actual quantity of carbon due to the concurrent production of slag (FeO). For high carbon melts the relationship is approximately linear because little slag is produced. For high carbon melts, the above signals are obtained respectively from a melt temperature computer 10, Fig. 1, which may be of the type described in Specification 1, 087, 439, a carbon content computer 14, in which the carbon content is measured and whose output signal is representative of the corresponding temperature rise, and an adjustable linear potentiometer 18, the signals being combined in amplifier 22 and the estimated temperature indicated at 26. For low carbon melts in which an appreciable amount of heat is evolved in the production of slag, this is allowed for by determining the carbon removal efficiency of the furnace, obtained by measuring the rate of removal of carbon from the furnace in computer (36), Figs. 2, 3 (not shown), and dividing this in divider (44) by a signal representative of the rate of flow of oxygen into the furnace, measured by flowmeter (40). The resultant signal also representative of the required temperature rise associated with the carbon content is fed to amplifier 22. The actual carbon content, non- linearly related to the above temperature rise, may be indicated at 69, Fig. 3 (not shown), on a non-linear scale, or at (54), Fig. 2 (not shown), on a linear scale, function generator (48) introduced between the connection to the meter (54) and divider (44) linearizing the signal, and a second function generator (58), introduced before the amplifier 22, producing a signal proportional to the input to function generator (48). Similarly to account for the non-linear relationship between the tap carbon content and the corresponding temperature rise, a function generator (30), Fig. 2 (not shown), may be included between the potentiometer 18 and amplifier 22 or alternatively a non-linear potentiometer, Fig. 3 (not shown), may be used.
Patent GB-1327398-A (GB)
Title: Method for producing granular manure
IPC: C05F3/00
Filed: 1970-10-30
Abstract: 1327398 Dispersible manure B DEBBELER 30 Oct 1970 [30 Oct 1969] 51801/70 Heading C1B A method for producing granular manure comprises mixing at least seven parts of poultry dung with one part of unslaked calcined lime and thereafter drying the mixture over several days. Preferably one part of lime is added to approximately nine parts of poultry dung. Other fertilizing substances, for example nitrogen, potassium and phosphorus compounds, may be added. The method is claimed to be an improvement on earlier methods wherein one part of dung is mixed with one part of lime.
Patent GB-520110-A (GB)
Abstract: 520,110. Calculating-apparatus. UNDERWOOD ELLIOT FISHER CO. Oct. 27, 1938, No. 31079. Convention date, Dec. 31, 1937. [Class 106 (i)] An accounting machine having a travelling paper carriage and two main totalizer or crossfooters each h associated with means for engaging it with an actuator and controlled by selecting mechanism in one position of which (1, lever 19) one totalizer is engaged, in another position (2) both totalizers are engaged and in a third position (3) the other totalizer is engaged, comprises means on the paper carriage to control the movement of the selecting mechanism to its three positions selectively at predetermined points in the travel of the carriage. The invention is embodied in a machine of the type described in Specifications 499,027, and 401,904, which are referred to. The control lever 19 adjusts by means of a slide 26 and and a cam surface 29, the position of a stepped plate 30 which, in turn, controls the forward displacement of a slide 37 under the tension of a spring 49 when an arm 43 on the mainshaft 13 carrying a pin 42 engaging a projection of the slide 37, is rotated anti-clockwise. The position assumed by the slide 37 determines the positions of bail arms 46 and 64, and these control the engagement of the totalizers in known manner. The automatic control from the paper carriage is carried out with the lower lever 19 in its first position. Lugs of two different sizes are arranged on the paper carriage in desired positions. A short lug cams a lever 82 and a slide 84 downwards and hence sets the stepped plate 30 in the " second position"; similarly a longer lug moves it into the " third position." In the latter case, a projection 232 on the slide 37 initiates the printing of a special mark in known manner. Specification 223,866, [Class 106 (i)], also is referred to.
Patent GB-1068290-A (GB)
Title: Improvements in or relating to television line output transformers
IPC: H01F38/42
Filed: 1965-12-10
Abstract: 1,068,290. Transformers. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Dec. 10, 1965 [Dec. 17, 1964], No. 52472/65. Heading H1T. A line output transformer for television receivers comprises at least a primary and secondary winding 1, 2 arranged side-by-side on a magnetic core 3, in which the separation of the windings 1, 2 is regulated to vary the inductive coupling between the windings, and thereby tune the third harmonic of the flyback frequency of the horizontal deflection stage. The core may be a window or toroidal core.
Patent GB-1211535-A (GB)
Title: Device for handling discrete laminar articles
Inventor: CHAUHAN NAROTTAM MOHANLAL
IPC: B65B23/14
Filed: 1966-11-24
Abstract: 1,211,535. Cams; intermittent gearing. N. M. CHAUHAN. 21 Nov., 1967 [24 Nov., 1966], No. 52604/66. Headings F2K and F2Q. [Also in Division B8] Cam and intermittent gearing is identical to that described in Specification 1,211,536, but the claims (which relate to handling articles) are different.
Patent GB-1088508-A (GB)
Title: Container cap having frangibly connected sealing means
Inventor: PORTER ALVIN JEROME
IPC: B65D51/22
Filed: 1965-12-10
Abstract: 1,088,508. Caps for bottles. PRODUCT DESIGN & ENGINEERING Inc. Dec. 10, 1965, No. 52640/65. Heading B8T. A tamper-proof container cap A comprises a rotatable overcap 34 and a collar 10, secured to the container 30, having a diaphragm 16. The latter has an outlet 22, Fig. 7, the outer end of which is closed by means, e.g. a plug 24 connected to the upper surface of the diaphragm. On first rotating the overcap 34, the plug 24 is broken free by means carried on the former, and further rotation brings an outlet hole 48 on the overcap into alignment with the outlet passage 22. A projection 26 on diaphragm 16 limits rotation of the overcap by engaging a member 46, Figs. 7, 8, which projects downwardly from cap top 36. Member 46 includes the plug freeing means, a recessed portion 52 which holds the plug 24 in an interference fit once said plug is broken off; the outlet hole 48 also passes through member 46. The collar 10 may have an annular bead 20 to engage a corresponding bead 42 on a collar 40 of the overcap, or vice versa. The collar 10 can be secured to the container neck 28 by adhesive means 32, or screw or friction means (not shown). Alternatively Figs. 10-15 (not shown) tapered splines (54), (56), (58), (60) may be provided radially on the container neck 28 to engage corresponding grooves 62 on the collar, or vice versa.
Patent GB-1469580-A (GB)
Title: Method and apparatus for completing assembly of a dynamo electric machine
IPC: H02K15/16
Filed: 1974-12-06
Abstract: 1469580 Assembling dynamoelectric machines; multi-spindle nut setters FARLOW ASSOCIATES Inc 6 Dec 1974 [29 April 1974] 52824/74 Headings B3A and B3N A housing 194, rotor and end plates 190, 192 of a dynamoelectric machine 92 are assembled together whilst simultaneously rotating a shaft 90 of the machine 92 in order to avoid binding of the shaft 90 after the assembling operation. A loosely assembled dynamoelectric machine 92 with tie bolts 188 extending through the end plates 190, 192 and housing 194 is positioned on a platen 30 after nuts to be screwed on to the bolts 188 have been placed by an operator in sockets 104a-104d, Fig. 2, of nut runners 54a- (54d), Fig. 1, attached to a feed plate 42. The platen 30 is moved by a piston-rod 84 beneath a frame 68 which is moved downwardly by a cylinder 82 to clamp the bolts 188 of the machine 92. A shaft extending from the lower end plate 190 of the machine 92 is positioned within a collet 156, Fig. 4, which is clamped on to the machine shaft by lifting by means of a cylinder (130) (Fig. 3, not shown) a plunger 174 which cooperates with balls 178 to lift a tube 152 for inwardly camming the collet 156. The clamped shaft is rotated by an air motor 60 whilst the plate 42 is raised by cylinders 48a, 48b to allow the nut runners 54a-(54d) to rotate the nuts on to the bolts 188. A shaft 90 extending from the upper end plate 192 of the machine 92 may be rotated by a similar driving mechanism 74 mounted on the frame 68. The nut runners 54a-(54d) are attached by links 114c, 114d to cylinders 56a, 56b so that the sockets 104a- 104d may be aligned with one or the other of sets of holes (93, 97) (Fig. 11, not shown) in the end plates 190, 192.
Patent GB-1159429-A (GB)
Title: Brake Actuators
IPC: B60T17/08
Filed: 1967-11-22
Abstract: 1,159,429. Fluid pressure brakes. WESTINGHOUSE BREMSENUND APPARATEBAU G.m.b.H. 22 Nov., 1967 [3 Feb., 1967], No. 53065/67. Addition to 1,143,036. Heading F2F. A brake actuating member 23, 24, can be depressed either by fluid pressure on a diaphragm 15, or by a spring 6 acting on a piston 4, the member 23 being movable through a greater distance by the spring actuation than by pressure actuation (as in the parent Specification) and in addition a conical spring 22 forces the brake actuating member 23 against the diaphragm 15. The diaphragm 15 receives fluid pressure from a port 28 and acts on a diaphragm plate having two parts 16, 19 which move together until the edge 21 of the part 19 engages the wall of the chamber 3. Further depression of the part 16 is possible by a rod 11 and bearing member 10 carried on the piston 4, until pins 31, 31a, in the part 16 and in a flanged tube 25, respectively, engage the ends of axial slots 32, 32a in a cylindrical extension 20 of the part 19 of the diaphragm plate. The flanged tube 25 is movable away from the diaphragm plate 16, 19 whereas in the parent Specification it is attached to it. An aperture in the end wall of the chamber 3 is large enough to allow the flanged tube 25 to pass through it, thus increasing the distance through which the brake actuating member 23, 24 can be moved by the spring loaded piston 4.