baber/WOPTO huggingface dataset:
Patent GB-426882-A (GB)
Title: Improvements in engine starter controls
IPC: F02N15/06
Filed: 1933-10-23
Abstract: 426,882. Turning - gear. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Oct. 23, 1933, No. 29307. Convention date, Oct. 24, 1932. [Class 7 (v)] [See also Group XXXV] In an engine starter, means tending to bring the starter into operative condition is rendered ineffective upon self - operation of the engine. As shown in Fig. 1, the pinion 8 is driven from the shaft 9 of a starting motor 1 through a splined connection and an overrunning clutch 11, as described in Specification 322,329, [Class 7 (v)]. The pinion is normally maintained in mesh with the engine member 7 by a lever 12 connected by a link 18 to a piston 15 moving in a cylinder 19 and acted upon by a spring 23. The lever 12 also closes a switch 39 in the circuit of a solenoid 29 which switches on the motor 1. The cylinder 19 is connected by conduits 25, 26 to the engine exhaust and intake manifolds, so that the difference of pressure created when the engine is running will disengage the pinion 8 from the gear 7 and open the switch 39. The parts will then be retained in the disengaged position by the engagement of an abutment 37 on the piston rod 16 by a shoulder 36 on a plunger 31 carried by the core 32 of a solenoid 34, the circuit 35 of which is closed by the ignition switch 27. When the engine is stopped by opening the ignition switch 27, the spring 23 returns the parts to the position shown in Fig. 1, ready for a fresh start, and the abutment 37 is re-engaged by the plunger 31 under the action of a spring 33. In a modification, in order to prevent re-engagement of the pinion &c., when the ignition switch is opened, a second abutment on the upper side of the rod 16, slightly to the rear of the abutment 37, is engaged by a second shoulder on the plunger 31 until the ignition switch is closed for re-starting. In a further form, the lower abutment 37 is omitted and the solenoid 34 is connected to a second contact 48, Fig. 5, which is engaged by the ignition switch 27<a> when depressed at starting against a spring 51. During normal running of the engine, the spring 51 disengages the switch 27<a> from the contact 48 and the plunger 31 is held in engagement with the upper abutment on the rod 16 by the spring 33.
Patent GB-171682-A (GB)
Title: Improvements in metal bedsteads
IPC: A47C19/02
Filed: 1921-11-04
Abstract: 171,682. Blin, J. A., (Assignee of Soc. J. Blin et Cie). Nov. 19, 1920, (Convention date]. Frames, joints, and connections; ornamenting bedsteads. -The frame of a metallic bedstead comprises side rails a and a cross-tie b composed of two channelled strips engaging one another to form box-rails of hollow rectangular and square cross-section respectively, the side rails being connected to the end bars, and the complete frame being braced by hollow triangular diagonal bars d or by diagonal cables i, i' passing round pulleys on the crosstie b. An ornamental bar a' may be fitted in a recess a<2> of each side bar a. The tie b may carry, at its ends, wings b<1> adapted to engage in sockets c on the side bars, and the diagonal bars d may be similarly secured.
Patent GB-1174103-A (GB)
Title: Extrusion Die
IPC: B29C48/09
Filed: 1967-01-03
Abstract: 1,174,103. Extrusion dies. NATIONAL DISTILLERS & CHEMICAL CORP. 3 Jan., 1967 [3 Jan., 1966; 14 Jan., 1966], No. 29431/69. Divided out of 1,174,102. Heading B5A. The subject matter is identical to that of Specification 1,174,102, in conjunction with Figs. 5-8 thereof, but the claims relate to the extrusion die described per se.
Patent GB-486114-A (GB)
Title: Improvements in electric motor control systems
IPC: B65H23/182
Filed: 1936-10-29
Abstract: 486,114. Control of two D.C. motors. ENGLISH ELECTRIC CO., Ltd., and CARNEGIE, H. S. Oct. 29, 1936, No. 29445. [Class 38 (iii)] Varying E.M.F.; field control.-A main motor 2 driving for example a strip rolling mill, and a second dynamo-electric machine 1 coupled to another part of the machine such as a coiling drum, or roller table, and acting as a motor or generator, are fed from a common variable voltage source 3 and varied in speed together, and the speed of the motor 2 may be varied independently of its armature voltage by means of a field regulator, means 4 acting in response to such speed control being provided to apply a corresponding additional voltage to the armature of the motor 1. The field 3a of the Ward-Leonard generator 3 supplying the machines 1, 2 is varied by a regulator 3b, and between the generator 3 and the machine 1 is connected a booster machine 4 having a field winding 4a connected to the generator 3 in series with a generator 5 driven by the motor 2. The voltage of the generator 5 opposes the voltage of the generator 3 and is equal to it while the field of the motor 2 remains at its maximum value. Thus the field 4a of the booster 4 is not excited. When the voltage of the generator 3 reaches a maximum and the field of the motor 2 is decreased, the voltage of the generator 5 exceeds the voltage of the generator 3 and the booster 4 applies a corresponding additional voltage to the machine 1. The booster 4 may have an additional field 4b for " inching " or for maintaining a tension in the material at standstill. In a modification, the field 4a of the booster may be supplied solely from the generator 5. In a further modification, the voltage of the generator 5 is less than that of the generator 3 and the booster 4 applies a bucking voltage to the machine 1 while the field of the generator 3 is varied. When the voltage of the generator 3 reaches a maximum and the field of the motor 2 is regulated, the booster 4 reduces its bucking voltage until the machine 1 receives the voltage of the generator 3 or this voltage increased by a boosting voltage from the booster 4. The arrangement may be combined with the systems described in Specifications 465,527 and 474,287.
Patent GB-713560-A (GB)
Title: Improvements relating to filters for extracting solids from gases
Inventor: RILEY HARRY LISTER
IPC: B01D46/24
Filed: 1951-12-17
Abstract: 713,560. Gas filters. UNITED COKE & CHEMICALS CO., Ltd. Dec. 2, 1952 [Dec. 17, 1951], No. 29509/51. Class 8 (2). A gas filter comprises a hollow rigid frame 1, Fig. 2, having one end open for. the outlet of clean gas and wrapped with wool felt or staple cloth of glass or like fibre held in position by glass or like tape. The frame 1 comprises a perforated steel tube open at one end and closed at the other and having imperforate end portions 2, 3 (not shown) to which the wrapping is secured by glass cord 12. The wrapping which comprises alternate layers 4, 5, Fig. 3, of glass fabric woven from continuous filament yarn and of glass felt held by openly wound glass tape 6 and also of alternate similar layers 7, 8 held by openly wound glass tape 9 and a close winding 10 is held in position by clipped metal bands 11. Cleaning is effected by reverse flow of gas. Instead of glass, slog wool, silica fibres or vitreous aluminium silicate may be used.
Patent GB-1095675-A (GB)
Title: The production of a doped zone in a body of semiconductor material
IPC: H01L21/00
Filed: 1965-06-12
Abstract: 1,095,675. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. July 12, 1965 [July 10, 1964], No. 29519/65. Addition to 1,014,288. Heading H1K. In a process as claimed in Specification 1,014,288, in which a diffused zone in a semiconductor body is produced by providing a layer of dopant in an oxide of the semi-conductor material on the body and heating above 1000‹ C. in air, the subsequent cooling is effected at a rate of at least 300‹ C. per hour from 600‹ to 350‹ C. In the embodiment described, N-type silicon discs are subjected to a current of oxygen containing boron iodide at a temperature of 1100‹ C. for 2 hours, washed, the coated discs then heated in air to 1280‹ C. for 25 to 60 hours to effect diffusion and cooled by 20‹ C. per minute over the temperature range 600‹ to 350‹ C. The process may be used to provide rectifiers, transistors or controlled rectifiers.
Patent GB-465045-A (GB)
Title: Method for increasing the efficiency of nuclear reactions and products thereof
IPC: G21C5/00
Filed: 1935-10-25
Abstract: 465,045. Atomic disintegration. GIANNINI & CO., Inc., G. M. Oct. 25, 1935, No. 29521. Convention date, Oct. 26, 1934. [Class 39 (i)] A radio-active element is produced by bombarding a body with neutrons and a layer of a substance containing an element of atomic weight less than 14, which reduces the neutron speed, is interposed between the neutron source and the bombarded body. Hydrogen containing substances such as hydro-carbons, paraffin and water may be employed. The bombarded body should be one in which a radio-active isotope of the bombarded element is produced. Copper, silver and iodine are stated to be suitable. A neutron source and the irradiated body may be placed in two apertures of a paraffin block. According to the Specification as open to inspection under Sect. 91 and as shown in the Figure, a radon-beryllium source 11 is placed in an aperture in a paraffin block 10. The body 12 rests on this block and is surrounded by a block, 13. In a modification the bombarded body is dissolved in a liquid interposed substance and the neutron source placed in the liquid. This subject-matter does not appear in the Specification as accepted,
Patent GB-409011-A (GB)
Title: Improvements in or relating to fire backs
IPC: F24B1/195
Filed: 1932-10-22
Abstract: 409,011. Open fireplaces. MASON, A., 101, Mount Pleasant Lane, Clapton, London. Oct. 22, 1932, No. 29537. [Class 126.] A fire-back for open fireplaces is formed from a back portion a, which may be in one or more parts and is shaped to provide a forwardly-extending throttle portion i and on each side of it vertical faces forming abutment surfaces for the edges of separate side cheeks b, the abutting surfaces of the back and side cheeks being formed with complemental projections and recesses so arranged that the side cheeks may be adjusted angularly and also bodily to and from one another to suit grates and fireplace openings of different sizes. In the form shown in Fig. 3, tongues e on the edges of the cheeks b loosely engage grooves d in the vertical side faces of the back, allowing angular movement of the cheeks as shown at x ; the tongues e are at one side of the rear edge, so that by interchanging the two cheeks the width between them at the back may be altered. A protector rib h may be provided on the front edges of the cheeks, as described in Specification 334,461, and may be on the centre line of the face in order to facilitate the interchanging of the two cheeks. Fig. 5 shows a modification in which hemispherical projections on the edge of each side cheek are engaged in one or other of a pair of grooves g in the back member, angular and bodily movement of the side cheeks being thus again provided for.
Patent GB-900623-A (GB)
Title: Improvements in programmed electric positional control systems
IPC: G05B19/425
Filed: 1958-09-16
Abstract: 900,623. Electric copying machines. MICRO PATH Inc. Sept. 16, 1958 [Sept. 23, 1957], No. 29605/58. Classes 38 (6) and 40 (1). [Also in Group XL (c)] Incremental pulses for controlling the movements of the work-table of a machinetool are recorded on a magnetic tape in accordance with either the movements of a stylus which is manually guided round a drawing of the part to be machined, or in accordance with the settings of potentiometers which introduce control signals similar to those generated by deflection of the stylus; four trains of pulses are recorded to provide for movement in either direction along two axes. The stylus 110, Fig. 5, is pivotally mounted on a support 12 which is dependent from a carriage which can be moved over the table 10, Fig. 1, by motors 40, 54 and lead-screws 42, 56. The stylus 110, Fig. 5, is mounted between two E-type pickoffs 120, 128 which are at right angles to provide A.C. signals varying in amplitude and phase-sense for movements of the stylus along either of the two axes. Considering one axis only, as the other is merely a duplicate, the A.C. signals are amplified, and demodulated at 20-a detailed circuit is given in Fig. 7 (not shown)-to provide a D.C. signal of variable amplitude and reversible polarity which is integrated at 28 and signals of one polarity are applied to control a first pulse modulator 36 and signals of the opposite polarity, i.e. indicating movement in the opposite direction, are applied via a phase-inverter 30 to a second pulse modulator 38. The integrator 28 (see Group XL (c)) phase inverter and pulse modulators are disclosed in detail in Fig. 8 (not shown). The integrator, of the Miller type, has negative feed-back from a later amplifying stage via biased diodes so as to produce no output over a small range of input signals, and thus provides a dead-band. The integrator has a longer timeconstant for signals that are increasing in magnitude than for decreasing signals so that the motors which are eventually controlled by the record are brought to rest more quickly than they are accelerated. The pulse modulators consist of mono-stable multivibrators that are tripped more frequently as the control voltage increases. The output pulses are not only recorded on the magnetic tape 62, but are also used to energize the motors 40, 54 so as to restore the stylus 110 to a perpendicular position. In addition to this restoring action, movements of the stylus 110 are opposed by coils 140, 144 which are energized in accordance with the D.C. control signal at unit 20 so as to act against the deflecting force and so tend to recentre the stylus. Specification 900,624 is referred to.
Patent GB-1102582-A (GB)
Title: Improvements in or relating to nuclear radiation flux measuring apparatus
Inventor: FOWLER ELIOT PATRICK
IPC: G01T3/00
Filed: 1964-07-22
Abstract: 1,102,582. Detecting neutrons. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 15 July, 1965 [22 July, 1964]. No. 29635/64. Heading G6P. In a nuclear reactor period meter, a neutronsensitive ionization chamber supplies a tuned circuit the output from which is applied to a logarithmic A.C. amplifier which in turn feeds a linear rectifier. The output from the latter supplies a neutron flux level meter and, in parallel, a D.C. amplifier and differentiator which provide a signal representing the reciprocal of the reactor period. The tuned circuit comprises a resonant series LC circuit of high-Q value. The logarithmic amplifier includes both D.C. feedback to stabilize against temperature variations of the parameters and A.C. feedback through semi-conductor diodes to provide the logarithmic characteristic. Phase correcting networks are inserted to prevent instability in the feedback loop caused by integrating effects. The linear rectifier comprises an A.C.-coupled saturating amplifier associated with an earthedcollector chopper transistor, driven in synchronism with the input waveform. In an alternative arrangement, a D.C. logarithmic amplifier is employed.
Patent GB-265323-A (GB)
Title: Improved method and apparatus for the treatment of milk powder
IPC: A23C3/00
Filed: 1925-11-24
Abstract: 265,323. White, A. E., (Merrell-Soule Co.). Nov. 24, 1925. Joint-making packing. - In the treatment of milk powder pipes 18 leading to containers are put singly into communication with the suction pipe' 26 of a pump by means of a swivelling pipe 22. The ends of the pipe 22 are formed with angular flanges 31, 34, dipping into troughs 19, 20 containing sealing-materials, such as a mixture of paraffin and beeswax. Round the edges of the flanges 31, 34 are disposed pipes 32, 35 through which steam can be passed to soften the sealing- mixture. and cold water to harden it. The lids f the containers are provided with similar sealing-arrangements.
Patent GB-810522-A (GB)
Title: Improvements in or relating to cinematograph film projectors
IPC: G03B19/18
Filed: 1956-09-28
Abstract: 810,522. Lens mounts. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 28, 1956 [Oct. 1, 1955], No. 29697/56. Class 97 (1) An exchangeable objective holder for a kinematograph projector is slidable on a guide on the projector and carries a lug clamped between a resilient member and a screw carried on the projector. In the form shown the objective holder 1 is mounted on a base 3 slidable on a guide 2 and flanged to provide lateral location thereon. The lug 11 projects downwardly from the base between a spring loaded plunger 8 and an adjusting screw 7 operated by a knob 6. The spring 9 acts between the head 10 of the plunger and a loose collar 15. The plunger may be withdrawn to an inoperative position by pulling on the pin 12 sliding in a slot 13. The pin is withdrawn from the mouth of the slot and the plunger rotated to engage the pin in a shallow slot 14.
Patent GB-636079-A (GB)
Title: Electric switch intended to be attached to the lower end of a pendant cable for the operation of telphers and other hoists
IPC: H01H9/02
Filed: 1947-11-07
Abstract: 636,079. Retractive switches; controllers. TORNROS, E., CARLSSON, J. E., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. 'Nov. 7, 1947, No. 29703. [Classes 38 (iii) and 38 (v)] A switch for controlling the motors of a hoist and adapted at 3 for attachment to a pendant cable, has its contact mechanism mounted on an insulating block 4 positioned in the top of an insulating housing 1. The housing supports near the base an operating cam-shaft 13 controlled by a lever 19 which is protected against inadvertent operation by a cap 21 on a fixed. insulating grasping handle 20. The fineadjustment hoist motor is controlled by two pairs of snap-acting bridging contacts 5, 6, whilst the main hoist motor is controlled by a rocking contact 11. The snap-mechanism 24 for the contacts 5 comprises a link 32 pivoted on a fixed pin 31 and connected at 33 to a link 34 pivoted at 35 to a further link 36, the link 36 being connected to an insulating support 25 slidable in the block 4 and carrying the contacts 5, and a spring 39 being stretched between the pin 31 and a peg 40 on the link 34. An identical mechanism 241 is provided for the contacts 6. On rotation of the lever 19 clockwise by the insertion of a finger through an opening in the cap 21, springs 30 are stressed and a cam 16 engages a roller 23 on the link 32 whereby the spring 39 is moved over-centre and the contacts 5 move upwards to bridge contacts 7. Continued movement of the lever 19 causes a cam 14 to engage a roller 28 on the contact 11 which rocks about the pivot 29 to engage a contact 10. On release of the lever, the springs 30 return the cam-shaft 13 to its central position whereby the contacts 10, 11 disengage and the cam 16 opens the contacts 5, 7 by engaging a further roller 22 on the link 32. The contacts 6, 8 are similarly closed by a cam 15 and the contacts 9, 11 engaged by the cam 14 on counter-clockwise movement of the lever 19, whereby the hoist motors run in the opposite direction.
Patent GB-470177-A (GB)
Title: Improvements in or relating to lubricating apparatus
IPC: F16N7/32
Filed: 1936-11-27
Abstract: 470,177. Lubricant conveyed by fluid. TAYLOR, R. C. Nov. 27, 1936, No. 29796/35. [Class 12 (iii)] Oil from the container A is drawn up by the atomizing jet C' and the oil mist passes out to the engine inlet by the orifice F. Then inlet of air to the container is controlled by a valve D. From the outlet F the oil mist is led to the engine induction pipe through the ripple L, which is provided at its end with a wire coil L<1>, this facilitating the reatomization of any condensed oil from the inlet which may dribble on to it.
Patent GB-1365745-A (GB)
Title: Propylene oxide
IPC: C07B61/00
Filed: 1972-06-27
Abstract: 1365745 Oxidation catalyst BP CHEMICALS INTERNATIONAL Ltd 29 May 1973 [27 June 1972] 29954/72 Heading B1E [Also in Division C2] A catalyst for the oxidation of propylene to propylene oxide comprises metallic silver modified by an additive which is compound of a metal from Group VA or VIA of the Mendeleef Periodic Classification, the metal compound covering at least partially the surface of the silver. The catalyst may be supported on an inert carrier, e.g. alumina, pumice, silicon carbide and silica. Suitable metallic compounds are, for example, vanadium trichloride, vanadium trichloride, chromium trichloride, chromyl chloride, molybdenum pentachloride, tungsten hexachloride and alkali metal chromates and dichromates. The catalyst may be activated by treatment with 1, 2-dichloroethane, 1, 1, 2-trichloroethane and 3-chloropropane.
Patent GB-1516284-A (GB)
Title: Process for the recovery of petroleum
IPC: C09K8/584
Filed: 1976-07-19
Abstract: 1516284 Oil recovery TH GOLDSCHMIDT AG 19 July 1976 [19 July 1975] 29985/76 Heading E1F An oil recovery process comprises flooding an oil deposit with an aqueous solution containing from 0.001-10% by weight of a surface-active betaine having, as the hydrophilic radical, at least one quaternary ammonium group which is capable of forming an inner salt intramolecularly with an acid group, and, as the oleophilic radical, at least one radical derived from a napthenic acid. Preferably the betaine has the formula: in which R<SP>1</SP> CO is a radical derived from a napthenic acid, R<SP>2</SP> is a C 2 -C 6  alkylene radical R<SP>3</SP> and R<SP>4</SP> are the same or different and are a C 1 -C 4  alkyl radical, R<SP>5</SP> is a C 1 -C 3  alkylene radical, R<SP>6</SP> is the same as R 3  or R 4 , and the two nitrogen atoms are constituents of a heterocyclic ring. The betaine may also be the reaction product of a halogeno carboxylic acid with a compound of the formula in which R<SP>7</SP> is the acid radical derived from a napthenic acid, R<SP>3</SP> is as above, and R<SP>8</SP> is an amino, acrylic or cyclic alkylamino or hydroxy group.
Patent GB-692259-A (GB)
Title: Improvements in or relating to press tools for making cardboard boxes
IPC: B31B50/46
Filed: 1949-11-23
Abstract: 692,259. Cutting-out presses. STANGEL, A., and GAMBLE, H. Nov. 21, 1950. [Nov. 23, 1949] No. 29996/49. Class 31 (i). [Also in Group XVII] In a press tool of the kind which cuts a cruciform blank from a flat sheet and folds the side wall portions of the blank against the sides of a former in one operation, the male cutters 14, Fig. 4, which engage the cut-out portions 51, Fig. 8, of the blank, are carried by the upper portion of the press, and the cut-out portions fall clear of the press through holes 15, Fig. 5, in the base of its lower portion. The male cutters are mounted on a reciprocating plate 12 which presses the blank against a fixed former 11. The female cutters 20 Fig. 5, are mounted on a spring plate 21 and are depressed by stripper members 17 as the plate 12 descends. Folders 13 push down the side wall portions against the former, the strippers 17 removing the formed box as the plate 12 ascends. In a modification, Fig. 1, the former 1 reciprocates relative to a lower fixed plate 2 and fixed folders 3 surround the plate, their adjacent edges forming the female cutters. The male cutters 4 reciprocate with the former 1 while the strippers 7 are fixed and are carried on either side of the plate 2. Heaters 8 are provided and members 44 position the blank during cutting.
Patent GB-684687-A (GB)
Title: Improvements in or relating to rubber latex compositions
IPC: F02F1/24
Filed: 1949-11-23
Abstract: 70 Rubber latex preferably ammoniated is stab ilized by mixing therewith urea, casein and formaldehyde.  Preferably the casein is first dis solved in a mild alkali e.g. ammonia or borax. Conveniently the mixture contains 1/2 -4 parts casein to 1 part of urea and at least 1 1/2 per cent casein based on the weight of rubber in the latex.