baber/WOPTO huggingface dataset:
Patent GB-769494-A (GB)
Title: Steroid compounds
IPC: C07J9/00
Filed: 1954-04-06
Abstract: The invention comprises a D 8(9)-7-keto-22,23-dihalo-ergostene, a D 8(9)-7-keto-dehydrotigogenin acylate and a process which comprises reacting in the presence of water a D 8(9)-polyhalo - cyclopentanophenanthrene compound having at rings B and C the formula <FORM:0769494/IV(b)/1> with a compound of a metal whose halides are water-insoluble, e.g. silver nitrate, silver acetate, silver oxide, mercurous acetate, lead nitrate and lead acetate, to produce the corresponding D 8(9) - 7 - keto - allo - cyclopentanophenanthrene compound.  The reaction may be effected in dialkyl ethers, lower alkanols, chloroform and carbon tetrachloride below - 10 DEG  C. Examples disclose the production of D 8(9)-3-acetoxy-7-keto - 22,23 - dibromoergostene.  Also mentioned are D 8(9) - 3 - acetoxy - 7 - keto - 22,23 - dichloroergostene, D 8(9) - 3 - acetoxy - 7 - keto - 22, 23 - dibromo - stigmastene, D 8(9) - 3 - acetoxy - 7 - keto - 22(23) - dichloro stigmastene and D 8(9) - 7 - keto - 23 - bromo - dehydrotigogenin acetate.  The halogen in the side chain of the products thus obtained may be removed by means of zinc and acetic acid to produce D 8(9),22 - 3 - acetoxy - 7 - keto - ergostadiene, D 8(9),22 - 3 - acetoxy - stigmastadiene and D 8(9)-7-keto-dehydrotigogenin acetate.  Starting compounds: D 8(9)-polyhalo-cyclopentanophenanthrene is obtained by reacting a D 7 - allo - cyclopentanophenanthrene with a chlorinating or brominating agent, e.g. bromine, chlorine, N - bromosuccimide, N - bromoacetamide, N - chloroacetamide or N - chlorosuccinimide.  The D 7-allo-compound is obtained by treating a D 5-allo compound with N-bromosuccimide to produce a D 5-7-bromo compound, treating said D 5-7-bromo compound with a t.-amine to produce a D 5,7 compound, and treating said D 5,7-compound with hydrogen in the presence of Raney nickel.  Among the D 8(9)-polyhalo steroids mentioned are D 8(9)-3-acetoxy - 7,11,22,23 - tetrabromo- or tetrachloro-ergostene and the corresponding stigmastenes, D 8(9)-7,11-dibromo- or dichlorodehydrotigogenin acetate, D 8(9),22-3-acetoxy-7,11-dibromo- or dichloro-ergostadiene and the corresponding stigmastadienes; also mentioned are 3 - acetoxy - 7,8,9,11,22,23 - hexabromo - or hexachloro-ergostane and the corresponding stigmastanes, 7,8,9,11 - tetrabromo - tigogenin acetate, polyhalogenated sapogenin compounds in which the saturated C-17 side chain contains one or more bromo or chloro substituents, D 7 - 3 - acetoxy - 7,11,22,23 - tetrabromo - ergostene and the corresponding stigmastene, D 7 - 9,11 - dihalo - dehydrotigogenin acetate, D 9(11) - 3 - acetoxy - 7,8,22,23 - tetrabromoergostene and the corresponding stigmastene, and D 9(11) - 7,11 - dibromo - dehydrotigogenin acetate.  Specification 764,322 is referred to.
Patent GB-1102297-A (GB)
Title: Centrifugal mills
Inventor: DUBROVIN BORIS NICKOLAEVICH
IPC: B02C13/04
Filed: 1965-03-10
Abstract: 1,102,297. Bearings; lubricating. VSESOJUZNY NAUCHNO - ISSLEDOVATELJSKY I PROEKTNY INSTITUTE MEKHANICHESKOI OBRABOTKI POLEZNYKH ISKOPAEMYKH. 10 March, 1965, No. 10119/65. Heading F2A. [Also in Division B2] In a roller-and-ring mill, the grinding rollers 13 are secured to journals 16 of a rotor by means of supports 14 and axles 15, the rollers 13 and journals 16 being provided with rubber bushings 17 which are supplied with water through conduits 21 connected to the compartments of a reservoir 20 to which water is supplied by a sprinkler 19 provided on a conduit 18.
Patent GB-558043-A (GB)
Title: Improvements relating to the flaps of aircraft
IPC: B64C21/08
Filed: 1942-07-21
Abstract: 558,043. Controlling aircraft. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., LLOYD, J., and MURRAY, C. V. July 21, 1942, No. 10157. [Class 4] A flap normally rested beneath the trailing edge of a wing or other aerofoil is supported upon downwardly convergent arms 20, 21 pivoted near the upper surface of the aerofoil, the forward arms 20 being pivoted to brackets 18 extending forwardly from the leading edge of the flap. Fig. 2 shows the position for taking off, but for landing the arm 20 is moved to the position shown at 20a and the flap is further tilted. An aileron 16 is mounted on the flap and is actuated by the linkage shown or by linkage movable by chain gear passing over sprockets coaxial with the end pivots of the arms 20. The maximum rearward movement of the flap is about 25 per cent to 30 per cent of the average chord of the aerofoil.
Patent GB-747528-A (GB)
Title: Improvements in arrangements for retaining bobbin-cases in loop-takers for sewing machines
IPC: D05B57/20
Filed: 1954-04-07
Abstract: 747,528. Sewing-machines. MESSERSCHMITT AKT.-GES. April 7, 1954 [April 9, 1953; May 6, 1953; Oct. 7, 1953], No. 10193/54. Drawings to Specification. Class 112. [Also in Group XXXV] A bobbin-case in a sewing-machine is held stationary during operation with respect to a rotary loop-taker by means of magnetic force which is employed either for pressing or for attracting the bobbin-case to or into the looptaker. The force may be provided either by permanent magnets or by electromagnets. Several embodiments of the invention are described in the Specification.
Patent GB-161962-A (GB)
Title: Improvements in machines for use in making boxes, crates and the like
IPC: B27M3/36
Filed: 1921-04-06
Abstract: 161,962. Wirebounds Patents Co., (Assignees of Thoinpson, O. C.). April 20, 1920, [Convention date]. Shearing.-In a machine for making wirebound boxes, crates, &c. the feeding mechanism for the work acts continuously, and the mechanism for severing the binding wires between successive groups of box parts acts while the work is being fed. The separate blanks are carried and fed forward by conveyer chains 2, Figs. 1 and 4, carried by sprockets 6, 7 which are adjustable towards one another, the sprocket 6 being continuously driven from a shaft 15 through reduction gear. The links of the chains, which are adjustable laterally, are formed to receive the cleats c of the blanks and carry adjustable spacer blocks 9 for spacing the sections of a blank and for spacing successive blanks. The binding wires, which are drawn by the work from reels, through rollers 13 and under a roller 14, are. severed between one group of box parts and another by cutters 57, 58, Fig. 10, each suspended from brackets 56 on the carriage 27 and riding upon the work in their inoperative position. The knife 57 of each cutter is secured to a lever 59 pivoted in the bracket 56 and is slidably encased by a casing 63 to which the knife 58 is pivoted at 61, Fig. 20, the casing being pivoted by a lever 65 to the bracket 56. The casings are connected by a shaft 74 and the outer casings carry gauges 68 which contact with the advancing block 9 when the cutters have dropped, under the actions of springs 69, into the space between adjacent groups of box parts and the consequent movement of the work relative to the movement of the brackets 56 causes the cutters to pivot about their respective centres 60, 64, thus causing relative movement of the knives 57, 58 to sever the binding wire which has already snapped within the notch 66 of the knife 58 which is controlled by a spring 67. The completed blanks are removed from the machine by stripper bars. Specifications 156,741, 156,746, and 156,747 are referred to.
Patent GB-1137388-A (GB)
Title: Semiconductor device
IPC: H01L21/331
Filed: 1966-03-08
Abstract: 1,137,388. Transistors. RADIO CORPORATION OF AMERICA. 8 March, 1966 [17 March, 1965], No. 10221/66. Heading H1K. A transistor has an emitter lead making contact to a portion of the emitter region of relatively high resistivity; this portion acts as a ballast resistor for the less resistive active emitting portion of the region. In an embodiment (not shown) a low resistivity monoorystalline silicon substrate (4) and a more resistive epitaxial layer (6) contiguous thereto act as the collector region. The base layer is formed in the epitaxial layer by two B 2 O 3  or BBr 3  diffusion steps, the first producing circular high resistivity base portions (10) and the second producing the low resistivity remainder (12) of the base layer. The emitter regions are formed by two POCl 3  diffusion steps to form many high resistivity circular non-emitting portions (14) and their surrounding annular low resistivity active portions (16). The combshaped emitter electrode (20, 24), formed by the vapour deposition of aluminium, makes contact with the non-emitting emitter areas through circular holes in a silicon dioxide layer (18). The interdigitated aluminium base contact (26, 30) makes contact with the low resistivity portions (12) of the base layer through holes (28) in the oxide. These holes are spaced evenly around each emitter site to obtain a substantially uniform distribution of potential between the base connection and all emitting parts, and are defined by arcuate edges the centre of curvature of each of which is the centre of the nearest emitter.
Patent GB-1211440-A (GB)
Title: Arrangement for automatically controlling the intensity of the electron beam of a television camera tube
IPC: H04N5/228
Filed: 1968-03-01
Abstract: 1,211,440. Television; cathode-ray tube operating circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISSBRANDT. 1 March, 1968 [2 March, 1967], No. 10233/68. Headings H4F and H4T. The intensity of the beam of a television camera tube of the type in which a portion of the beam modulated by the target information is reflected therefrom (e.g. a tube of the image orthicon type) is controlled in accordance with the peak video signal produced i.e. in accordance with the maximum intensity of illumination of the scene being televised, to maintain a desired modulation percentage. Referring to Figs. 1 and 2, pulses A and B are supplied during blanking intervals to the control grid 5 and the target 3 respectively of an image orthicon tube 1 the pulses A resulting in the production of an "ultra-white" level output signal CA and pulses B resulting in the production of the black level signal CB. The composite output waveform C is then supplied via pre-amplifier 6 and video amplifier 7 to a pair of peak-to-peak detectors 12, 14, the former operating to produce an output proportional to the difference between the levels CA and CB and the latter producing an output proportional to the difference between the peak video signal level CU and the black level CB. The output of detector 12 is representative of the beam current and that of detector 14 representative of the peak video signal so that by attenuating the output of detector 12, e.g. by means of potentiometer 13, to a value which expressed as a percentage of the maximum output, is equal to the desired percentage modulation of the beam by the video signal and by comparing this attenuated output with the output of detector 14 in a comparator 15, departure from this desired percentage modulation produces a control signal which is applied via a D.C. amplifier 16 to the control grid 5 to vary the beam intensity such that the desired percentage modulation is restored. The pulses A are preferably applied to the control grid during frame blanking periods rather than during line blanking periods to avoid the production of parasitic signals due to capacitance between the grid 5 and the photomultiplier 4 and since pulses A completely eliminate the beam current disturbance in the operation of the conventional clamping circuits (9, Fig. 1) is avoided by inhibiting clamping during the occurrence of the pulses A. When optimum operation requires the depth of modulation to vary according to a desired function, instead of being constant, a circuit having the required characteristic is inserted between comparator 15 and either detector 12 or 14. In a modification the gain of amplifier 7 is controlled by the output of detector 14 and by including a supplementary amplifier in the channel to detector 12 and varying the gain of this amplifier according to a desired function by the control fed to amplifier 7 the depth of modulation may be correspondingly controlled (Fig. 4, not shown).
Patent GB-250980-A (GB)
Title: Improvements in and relating to apparatus for constructing thin concrete walls and erecting the same
IPC: E04G11/32
Filed: 1926-04-19
Abstract: 250,980. Sargeant, J. M. April 18, 1925, [Convention date]. Moulding walls in situ.- Thin concrete wall portions are cast in moulds in a horizontal position and are raised into the vertical position for erection on a concrete foundation previously prepared. Tubular uprights 16 are secured in sockets 15 bolted to the concrete foundation, and carry upper and lower journal castings 43, 19 which are clamped to the post at the desired positions. A trussed pivot shaft 46 is carried by the upper brackets of a pair of posts and this shaft supports a number of bearing arms 56 which receive cross-bars 58 acting as bearers for the mould frame, which is adjustable for different sizes of wall blocks. The cross-bars are trussed to adjust the tension and are tied together at their ends by bars 60 to which cables 41, 42 are attached for rotating the frame from the horizontal to the vertical position. Each cable is tensioned by passing around an upper drum 54. The lower journal castings carry a cross shaft 31 to which are secured the drums 40 for the cables and eccentrics 35, and operating shafts. The cross shaft is rotated by gearing 30, 32 from the operating shafts and the mould is rocked during casting by the eccentrics 35 and rods 63. Screw-adjusting lifting rods 68 are also secured to the eccentric sheaves so that the mould, when turned into the vertical position, may be lowered to deposit the cast wall upon the foundation. In a modification, the mould is positioned wholly over the cast foundation so that trees and other objects near to the foundation do not interfere with the casting operation. For this purpose, channelled bars 72 are supported by the screw adjusting rods 68 from the eccentrics and the upper journal castings 69 are provided with runners 71 to run in the channels, and the cables 41, 42 are operated to tilt the mould and also to draw the journal casting from the moulding position, shown in Fig. 8, to the depositing position over one of the posts 16. The cast wall is retained on the mould during the tilting operation by screw adjusting rods 66 on the mould support engaging the reinforcement 67 in the wall.
Patent GB-594458-A (GB)
Title: Improvements in or relating to button hole sewing machines
IPC: D05B93/00
Filed: 1944-05-26
Abstract: 594,458. Buttonhole sewing-machines. NEWTON, E. P. (International Button Hole Sewing Machine Co.). May 26, 1944, No. 10260. [Class 112] Thread-cutters; starting and stopping gear.- The operation of the thread-trimmer is made dependent upon the retraction of the buttonhole-cutter so that the two devices cannot conflict if the latter sticks; it is effected by power other than that derived from the: momentum of the, machine in stopping (which latter actuates. the buttonhole-cutter) so that its operation isindependent of the amount of energy taken.- by the cutter. The trimmer is. connected to the manual means for raising the work-clamp, so that if the work has to be removed at any time before the end; of a cycle it is not held by the thread. In the machine shown, provided with stop-mechanism as described in Specification 586,162, the button-hole cutter lever 55 is: depressed and then raised by the stop-arm. 34 just before the, machine comes to rest, the former movement being produced by the momentum of the machine and the latter by a spring-plunger 45 bearing on the stop arm. The hand-lever 63 actuating the work-clamp 18. has a spring-pressed latch 69 which engages a lug on the tail of the cutter lever 55 when the latter is depressed (raising its tail) so that on retraction of the cutter the lever 63 is pulled downwards to open the clamp and, by a linkage 87 and rock-shaft 78, to actuate the sliding threadtrimmer 74. The, latch 69 is released, to allow the clamp to close and to retract the threadtrimmer, by the starting-lever 46. Specification 586,328 also is referred to.
Patent GB-558969-A (GB)
Title: Improvements in or relating to electro magnetically-operated step-by-step mechanism
IPC: H02K7/065
Filed: 1942-07-24
Abstract: 558,969. Counting-apparatus. IGRANIC ELECTRIC CO., Ltd. (Cutler Hammer, Inc.). July 24, 1942, No. 10385. [Class 106 (i)] [Also in Group XXXVII] A predetermined number of impulses in an electromagnet 9 cause the step-by-step rotation of a ratchet wheel 2 till a switch or other device is operated ; the ratchet wheel is later released by energization of a release magnet 10 or operation of a hand lever when it returns under spring bias till an arm 60 on the spindle 13 of the ratchet wheel engages a stop 62 on an adjustable dial 61 graduated to indicate at 66 the number of impulses necessary to actuate the switch. The armature 17 of magnet 9 is pivoted at 19 and carries an arm 23 carrying the operating pawl 21 which is connected by springs 25 with a retaining pawl 22. A member 40 also prevents overrun of the ratchet wheel by impeding the pawl 21 at the end of its driving stroke. Energization of the release magnet 10 causes a member 30 to push both pawls 21, 22 out of engagement with the ratchet wheel, the member 40 being also moved so as not to obstruct this movement. The spindle 13 of the ratchet wheel carries a radial arm which is adapted to operate a contact carrying plunger, Fig. 5 (not shown).
Patent GB-1467554-A (GB)
Title: Air conditioning system
IPC: F25B41/04
Filed: 1975-03-13
Abstract: 1467554 Refrigerating FORD MOTOR CO Ltd 13 March 1975 [13 April 1974] 10468/75 Heading F4H In an air conditioning system for a vehicle comprising a compressor, a condenser, a thermal expansion valve, an evaporator and a suction throttling device connected in series in a closed circuit, the thermal expansion valve is responsive to the pressure in a by-pass equalizing passage which provides a controlled flow around the suction throttling device and to the temperature at the evaporator. As shown in Fig. 4, a housing 58, 60 contains a thermal expansion valve and a suction throttling valve 74 and is provided with fittings 60, 62, 66, 86 for connection to the evaporator outlet the evaporator inlet, the condenser outlet and the compressor inlet, respectively. The fittings 62, 66 are connected by a passage 68 including a valve 70 connected to a valve actuating diaphragm 80. The chamber beneath the diaphragm communicates with a passage 78, 88 which by-passes the suction throttling valve 74 and which is provided with calibrated flow-restricting orifices 90, 92. The suction throttling valve is such that the pressure differential produced is greater at lower evaporator outlet pressures than at higher evaporator outlet pressures, thereby reducing the compressor power consumption for low load operating conditions, and may be constructed as illustrated in Fig. 2 (not shown). A sealed temperature sensor bulb 82 is located between the diaphragm 80 and an operating rod 84 engaging the valve 70.
Patent GB-1419690-A (GB)
IPC: H01T13/46
Filed: 1973-03-05
Abstract: 1419690 Sparking plugs M WOLFF 10 July 1973 [5 March 1973] 10494/73 Heading F1B A sparking plug comprises an auxiliary electrode 26 in the form of a bar supported by the plug insulator 14, overlying but axially spaced from the inner end 27 of the line electrode and a portion 28 of the earth electrode, to form two spark gaps, so that for each high tension impulse one spark is produced between the live electrode and the auxiliary electrode and a second spark is produced between the auxiliary electrode and the earth electrode. In a modification the inner end 27 of the live electrode is offset with respect to the axis of the insulator. In another modification the auxiliary electrode is supported by a ring fixed to the inner end of the insulator. The auxiliary electrode may extend over diametrically opposite points of the earth electrode and over the live electrode.
Patent GB-1455159-A (GB)
Title: Pivoting tray sorting apparatus
IPC: B65H29/60
Filed: 1974-03-08
Abstract: 1455159 Delivering sheets XEROX CORP 8 March 1974 [9 March 1973] 10512/74 Heading B8R Sheets delivered from a xerographic copier are deposited in succession on to a plurality of trays 7, Fig. 2, the depositing means 120 carrying diverter fingers 175 moving along a vacuum conveyer 115 by engagement with a helical groove 124 in a rotating cam member 122, while at the same time an arm 154 pivoted to the means 120 is swung by a motor 161 through a one-way clutch, a chain 160, a gear 156 and a gear segment 152 on the arms 154 so as to widen the opening into the tray receiving a sheet by pivoting it by means of a hook portion 142 riding in a crescent-shaped cavity 144 in frame members 146, Fig. 3, a spring 162 then returning the arm to its initial position. In another form, Fig. 4, the arm 154 carries a second gear 174 engaging a gear segment 174 on the means 120 the gear 174 carrying a cam member 170 to increase the effective arc of the arm 154.
Patent GB-920018-A (GB)
Title: Process for recovering organic di-hydroperoxides
IPC: C07C37/08
Filed: 1961-03-22
Abstract: In a process for the production of dihydroperoxides by oxidation of dialkylated aromatic compounds of the general formula R2CH.Ar.CHR2 in which Ar represents an aromatic residue and R an alkyl radical and in which the oxidation product is extracted with aqueous alkali, the alkaline extract extracted with an organic solvent for by-products of the oxidation to obtain an organic phase containing said by-products and the organic phase subjected to hydrogenation and returned to the oxidation stage, the organic phase is extracted prior to hydrogenation with an aqueous alkaline solution.
Patent GB-865848-A (GB)
Title: A method for the preparation of chlorine-containing organic phosphorus-nitrogen compounds
Inventor: RUDY HERMANN
IPC: C07F9/24
Filed: 1959-03-26
Abstract: Di-chloroalkyl phosphate amides, imides and hydrazides are prepared by reacting a di-chloroalkyl halophosphate with a substantially equivalent amount of an organic amine, alkylene imine or hydrazide in admixture with an aqueous inorganic base e.g. Na2CO3. Di-(2-chloroalkyl) organosubstituted phosphate imides and hydrazides, di-(2-chloroalkyl) phosphate N, N-di-organo-substituted amides, and organo-diamine- N, N-bis phosphoric acid-di-(2-chloroalkyl) esters are claimed per se.  The products may be used in flame-proofing textile fabrics, wood, &c. (see Group VIII).
Patent GB-105527-A (GB)
IPC: E01B3/40
Abstract: 105,527. Valeri, O. Aug. 21, 1916, [Convention date]. Addition to 102,152. Sleepers, composite and pot; securing rails to; sleepers and parts, arrangements of tie-bars. -Improvements in the permanent way described in the parent Specification consist in forming the sleepers c with pivot edges k resting on supports l in transverse sleepers, the sleepers c being connected together by ties b which engage with rods h let into the sleepers c. Transverse tiebars f are attached by clamping-nuts to jaws affixed to the lower flange of the rails, drop-rods p engaging with the ties b. The rails are secured to the sleepers by clamping-screws carried by rods g, the lower ends of which engage with transverse rods m let into the sleepers c.