baber/WOPTO huggingface dataset:
Patent GB-379047-A (GB)
Title: Improvements relating to built-up metal cutting and other tools or implements and toprocesses and apparatus for their manufacture
IPC: B22F7/06
Filed: 1931-07-06
Abstract: 379,047. Making metal-cutting and like tools. KRUPP AKT.-GES., F., Essen, Germany. July 6, 1931, No. 19416. Convention date, April 18. [Classes 83 (ii) and 83 (iv).] Forging-dies; welding.-Tips for metal-cutting or other tools and implements formed of sintered or fused carbides of metals of melting point over 2000‹ C., such as tungsten carbide, are united to a foundation body of a metal or alloy such as steel by subjecting them simultaneously to pressure and high temperature. The tip may also contain a metal of lower melting point such as cobalt, nickel or iron. The shank B of a turning tool, which has a recess preferably provided with a pin b<1>, is passed along a groove c<2> in a plate C through a slot in a mould E, the hard part G, which may be in powder form, poured thereon and a plunger D engaged by a carbon cap F inserted in the mould. The parts, which are inserted in a press, are connected through C, F to the electric current for heating the powder in about one minute to over 1400-1600‹ C so as to sinter the powder and under the pressure of about 140-280 lbs. per sq. in. to unite it to the shank B. The shank is heated to dull red heat during the process. Tips for turning tools or drill crowns may be united to the end of a shank B, provided with a pin b<2> by securing the shank to a block H serving as a support and inserting it axially into the mould and applying heat and pressure as in the first case. In forming a tip G on the end of a drill shank B, the shank is passed through a hole e<4> in a two-part mould containing an opposite pair of plungers D<1>, D<2>. The parts of the mould have a parting surface which may be radial, stepped or semicircular. The mould may be of wood carbon or graphite, or of wood carbon or ceramic material such as aluminium oxide, surrounded by a graphite sheath. The plungers may be of wood carbon, graphite or ceramic material. The tip, which may be of pure tungsten carbide or tungsten carbide alloy consisting of 90 per cent tungsten, 5 per cent carbon and 5 per cent cobalt, instead of being applied in powder form, may be applied as an unworked thin plate either preliminarily cold-pressed or preliminarily sintered, in which case it is sintered or finally sintered, during uniting, or it may be applied as a finally sintered or cast plate. A leaf or foil of a metal alloy such as 42 per cent nickel steel, having a coefficient of expansion approximately the same as that of the hard metal may be inserted between the foundation body and the tip, to reduce heat strains or cracks.
Patent GB-168045-A (GB)
Title: Improvements in and relating to impregnation of wood
IPC: B27K3/38
Filed: 1921-07-19
Abstract: 168,045. Soc. de Recherches et de Perfectionnements Industriels. Aug. 20, 1920, [Convention date]. Wood, treating with liquids. -Xylenols are emulsified in a medium inert to them and used as a cheap substitute for creosote. Soap or resin may be used as the emulsifier.
Patent GB-660441-A (GB)
Title: Apparatus for the hanging storage of documents and the like of large dimensions
IPC: B42F15/06
Filed: 1949-07-26
Abstract: 660,441. Filing papers &c. GABS AKT.-GES. July 26, 1949 [Dec. 23, 1948], No. 19673/49. Class 146 (i). Apparatus' for the hanging storage of large drawings or the like comprises files 2 adapted to be suspended on supporting rails 1 in or on a storage device, the drawings 6 being hung on rake pins 5 in the files 2 and each file 2 having means, such as handles 9, by which it can be lifted from the rails 1 and connected to a withdrawal device 12 having a rake 17 with pins 18 corresponding with the pins 5, the device 12 having a manually operated closing device which brings the rake pins 5 and 18 into aligned contact in the closed position and in the opened position separates the pins 5 and 18 to enable drawings to be added to or removed from the file 2 connected to the withdrawal device. The supporting rails 1 are of U-shape with the outer limbs longer and supporting the withdrawal device. Each file 2 comprises end plates 3, which run on the shorter inner limbs of the rails 1, connected by a rake 4 provided with the pins 5 and having a channel 24 to fit over a bar 14 of the withdrawal device 12. The device 12 comprises cross bars 14, 15 connected by side limbs 13 which carry rollers 16 to run on the rail 1, and the rake bar 17 is supported by lever arms 19, 20 pivoted at their upper ends to the side limbs 13 and disposed so that in the closed position, Fig. 3, the pins 18 are horizontal and in the opened position, with the pins withdrawn, they are slightly inclined with the ends of the pins 18 higher than the bar 17 so that drawings do not slide off. The bar 17 is operated by a stirrup-shaped piece 22 rigidly secured to the levers 20, the levers 20 pivoting about the rod 21. The drawings 6 may be retained on the pins 5 by a locking device which may comprise a perforated bar 7 held by small springs 8 or, in a modification, may comprise a hold down device of a pivoted curved member suspended in the handles 9 and stressed by a spring. The files 2 and the withdrawal device 12 can be removed as desired by lifting upwardly, the device 12 being used on a different set of rails if required. The device 12 may be rigidly secured in or on a storage device or may have fixing means by which it is mounted at predetermined points above the files 2.
Patent GB-870389-A (GB)
Title: Steroid compounds and the preparation thereof
IPC: C07J75/00
Filed: 1959-06-09
Abstract: The invention comprises a compound having the formula (including the D 1-, the D 6- and D 16-analogues thereof):  <FORM:0870389/IV (b)/1> wherein R1 is hydrogen or methyl, R2 is hydrogen, fluorine or methyl, R3 is hydrogen or hydroxyl, R4 is hydrogen, methyl, fluorine, methylene, hydroxyl or acylated hydroxyl, at least three of R1, R2, R3 and R4 always being hydrogen, the acyl group being derived from mono and dicarboxylic acids containing up to ten carbon atoms and alkali and alkaline earth metal salts of the dicarboxylic acids, X is hydrogen, a -halogen, a -methoxy or a -ethoxy, and Y is keto or b -hydroxyl, and a process for preparing compounds of the Formula I (including the D 1, D 6, and D 16 analogues thereof), which comprises reacting in a lower oxygenated aliphatic solvent the corresponding a -hydroxy-b -chloropropanoyl compound and bismuth trioxide.  The reaction may be effected at 50 DEG -60 DEG C. Illustrative products of the invention are 17b -pyruvoyl-D 4-andostene-11b ,17a -diol-3-one, the corresponding D 1, D 6 and D 16 compounds and the 9-halo-6-alkyl, 16-methylene and 16-methyl derivatives thereof. Specifications 870,387, 870,388 and 870,390 are referred to.ALSO:Pharmaceutical compositions comprise, in admixture with a pharmaceutically acceptable carrier, a compound of the formula <FORM:0870389/VI/1> (or a D 1-, D 6- or D 1,6-analogue thereof), wherein R1 is hydrogen or methyl, R2 is hydrogen, fluorine or methyl, R3 is hydrogen or hydroxyl, R4 is hydrogen, fluorine, methyl, methylene, hydroxyl or acylated hydroxyl, the acyl group being derived from a mono or dicarboxylic acid containing up to 10 carbon atoms or an alkali or alkaline-earth metal salt of a dicarboxylic acid, at least three of R1, R2, R3 and R4 always being hydrogen, X is hydrogen, a -halogen, a -methoxy or a -ethoxy, and Y is keto or b -hydroxyl.  The compositions may be in the form of tablets, aqueous suspensions, elixirs, ointments and salves. Specifications 870,387, 870,388 and 870,390 are referred to.
Patent GB-436913-A (GB)
Title: Improvements relating to wire fabric seating surfaces
IPC: B60N2/70
Filed: 1934-07-05
Abstract: 436,913. Spring surfaces. JAMES, Ltd., A. A., and JAMES, W. E., Lombard Street West, West Bromwich. July 5, 1934, No. 19751. [Class 52 (iv)] A meshwork surface consists of linked rows of zigzag wires a carried by stout side wires c and arranged in two parts connected by helical springs b.
Patent GB-1553621-A (GB)
Title: Process for extruding a synthetic resin body having portions of different thickness
IPC: B29C48/325
Filed: 1976-05-14
Abstract: In a process for forming a resin body, the thickness of the body is altered by altering the feed rate of raw material to an extruder and the screw rate of the extruder screw in such a relationship to alter the quantity extrusion rate without altering the amount of resin within the extruder.
Patent GB-184681-A (GB)
Title: Improvements in or relating to the steering and driving of motor vehicles
IPC: B62D11/08
Filed: 1921-07-26
Abstract: 184,681. Wilson, P. M. July 26, 1921. De-clutching for steering.-Each driving roadwheel is driven through a pawl which is disengaged for steering by the application of a brake, causing relative rotation between the pawlcanying member and the brake disc. A driven gear-wheel e, loosely mounted on the road-wheel hub, carries a pawl g swinging in a slot f in the gear-wheel. An arm g<1> on the pawl works in a V-shaped slot i in a brake disc j, which is loosely mounted on the hub of the gear-wheel and is normally held so that the pawl arm g<1> is at the apex of the V by means of counteracting springs k. The pawl is then in the position shown in full lines in Fig. 1 and engages one of a number of lugs q fixed to the road-wheel hub c so that the gear-wheel e drives the road wheel. When the disc j of either road-wheel is braked it rotates relatively to the gear-wheel, the pawl arm g<1> moves along the slot and the pawl is disengaged, so freeing the road-wheel and causing the vehicle to turn to that side.
Patent GB-625378-A (GB)
Title: Ultra-high-frequency electromagnetic wave-measuring arrangements
IPC: G01R21/00
Filed: 1947-07-25
Abstract: 625,378. Current and voltage measurements. SPERRY GYROSCOPE' CO., Inc. July 25, 1947, No. 20097. Convention date, Aug. 18, 1943. [Class 37] [Also in Group XL (b)] A transmission line 11, 12, Fig. 1, for highfrequency is coupled to a second transmission line 31, 32 so that for energy flowing from left to right an antinode is formed at B and a node at A, while for energy flowing from right to left, an antinode is formed at A and a node at B, and a meter 21 is connected to A and a terminating impedance 16 is connected to B so that the meter is affected only by the energy flowing from right to left. The meter may be graduated to read voltage or power, and the apparatus can be used to measure reflected power and thus to test matching (zero reflection). In Fig. 2, the system is reversely duplicated to measure both input and reflected power or voltage, and is further modified by replacing the probes 33, 34 of Fig. 1, spaced #/4 apart, by a conductor 1 having a length of #/2. In Fig. 3, the meter 24 measures the ratio of reflected power to input power, the conductor 13 having its end impedances matched by short-circuited stubs 22, 23, so that energy flowing from right to left energizes detector 19<SP>11</SP>, while detector 19<SP>111</SP> is energized only by 'energy in the other direction. The conductor 13 may be in line with the outer conductor 12, Fig. 4 (not shown).
Patent GB-418128-A (GB)
Title: Improvements in electric arc lamps
IPC: B60L15/04
Filed: 1934-07-10
Abstract: 418,128. Arc lamps; discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gliihlampen ; 11, Ehrenbergstrasse, Berlin.) July 10, 1934, No. 20257. Convention date, Aug. 24, 1933. [Class 39 (i).] In an arc lamp in which the arc is enclosed in a gas-filled chamber the filling comprises hydrogen and cadmium vapour with or without nitrogen, carbon monoxide, hydrocarbons and rare gases. The gas may be 25 per cent hydrogen and 75 per cent nitrogen, the pressure at room temperature being 20 mm. of mercury. A small proportion of mercury may be added to the cadmium. The electrodes are of refractory material such as carbon, carbides, borides or nitrides, or refracting metal, with or without theria.
Patent GB-1006068-A (GB)
Title: Improvements in or relating to electrical measuring instruments
Inventor: HAWKES HARRY DONALD
IPC: G01R21/02
Filed: 1961-06-05
Abstract: 1,006,068. Multiplying arrangements. ELLIOTT BROS (LONDON) Ltd. June 5, 1962 [June 5, 196 No. 20280/61. Heading G4G. [Also in Division G1] An electrical measuring instrument which indicates the product of the voltage of and the current supplied by an alternating current supply comprises an arrangement for deriving a first rectified current as a function of the magnitude of the voltage of the supply, an arrangement for deriving a second rectified current as a function of the magnitude of the current taken by a load and a first thermocouple having a heater responsive to the sum of the first and second currents to produce in the first thermocouple a first voltage which is proportional to the square of the sum of the first and second rectified currents. A second thermocouple has a heater responsive to the first rectified current to produce in the second thermocouple a second voltage proportional to the square of the first current and a third thermocouple has a heater responsive to the second rectified current to produce in the third thermocouple a third voltage proportional to the square of the second rectified current. A measure of the difference between the first voltage and the sum of the second and third voltages is then derived. When used in conjunction with a single-phase A.C. supply the input voltage is applied across terminals 1, 2 (Fig. 1) and the load across 3, 4. The full wave bridge rectifier 5 produces a rectified current proportional to the input voltage and this current, a, flows through the heaters 7 and 8 of the thermocouples 9 and 10. The secondary winding 12 of a current transformer 11 is connected across a further bridge rectifier 13. Across the other diagonal of this bridge are connected the heaters 7 and 14 of the thermocouples 9 and 15, through which will flow a current b proportional to the current passing through the primary winding of transformer 11 and thus through the load. A voltage proportional to (a + b)<SP>2</SP> is thus developed in the thermocouple 9 and voltages proportional to a<SP>2</SP> and b<SP>2</SP> are developed in the thermocouples 10 and 15. By arranging the thermocouples as shown in Fig. 3 so that the sum of the voltages from the thermocouples 10 and 15 is subtracted from the voltage from thermocouple 9, a voltage proportional to a.b and thus to the desired product is derived. A similar arrangement for use with a three-phase supply is described (Fig. 2, not shown).
Patent GB-358548-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M9/00
Filed: 1930-07-04
Abstract: 358,548. Direct call systems. BUROVOX, Ltd., and CAUTHERY, S., 121, Kingsway, London. July 4, 1930, No. 20292. [Class 40 (iv).] An office system comprises a main station with a loud-speaker and sensitive microphone and one or more minor stations preferably arranged so that no switching operation is necessary at the main station to answer a call. Transformers or combinations of transformers for matching the impedances of the talking instruments are provided. In one embodiment, Figs. 1 and 2 (not shown), there is a common 3-wire talking circuit to which the outstations can connect themselves at will and separate circuits are provided whereby each out-station can light an individual lamp at the central station and further separate circuits whereby the central station can call any out-station. The out-stations do not call each other but may have lamps indicating that the system is in use. In another embodiment, Fig. 3, separate 7-wire circuits are provided between each out-station and the main station, the appropriate circuit being connected up by a relay 27 at the main station individual to the out-station. In another arrangement, Fig. 4 (not shown), there are two stations only and each closes its own talking circuit. Both have loud-speakers and no other calling means. Reference has been directed by the Comptroller to Specifications 13311/06, 11347/07, [both in Class 40, Electric telegraphs &c.], 207,839, 308,811, and 325,274, [all in Class 40 (iv), Telephones &c.].
Patent GB-1508022-A (GB)
Title: Triazine sulphenimides
IPC: A01N43/70
Filed: 1975-05-14
Abstract: 1508022 Triazine sulphenimides DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 14 May 1975 [24 June 1974] 20313/75 Heading C2C [Also in Division C3] Novel triazine sulphenimides of the Formula I in which X represents R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each, independently, H or C 1 -C 4  alkyl; and Y is -CH 2 CH 2 -, -CH 2 -CH 2 -CH 2 -, -OH(CH 3 )-CH 2 -, (where R<SP>5</SP> and R<SP>6</SP> are each, independently, H, C 1 -C 8  alkyl, alkylthioalkyl with a total of 2 to 8 carbon atoms, CH 3 -S-, alkoxyalkyl with a total of 2 to 8 carbon atoms, CH 3 O-, or phenyl), or -N(R<SP>7</SP>)-CO-N(R<SP>8</SP>)- (where R<SP>7</SP> and R<SP>8</SP> are each, independently, H, C 1 -C 8  alkyl, allyl or phenyl, are prepared by reacting a sulphene halide of formula in which Hal is Cl or Br, with an imide of formula in homogeneous phase at a temperature below 100 C., or in heterogeneous phase at a temperature below 25 C. The compounds of Formula I are used as processing aids for vulcanizing natural and synthetic rubber mixtures.
Patent GB-301520-A (GB)
Title: Improvements in or relating to vehicle signalling apparatus
IPC: B60R16/00
Filed: 1927-08-02
Abstract: 301,520. Waller, P. H. Aug. 2, 1927. Road-traffic signals on vehicles. -. Comprises a plurality of contact members moving as a unit with the speedometer or similar spindle and having relative movement between the said contact members to bring cooperating pairs together to close appropriate signal circuits. The contact a is fixed to the spindle s of the speedometer. The contacts c, d are mounted as a unit on a sleeve h as the spindle. Between the control a and the contacts c, d there is a relative movement. On the spindle s moving clockwise, Fig. 1, after the lost motion is taken up, the contact a meets the contact c and a " picking-up signal is given. On decreasing speed, the contact a leaves contact c and eventually meets contacts d to operate signal "slowing down." Stopping the contact a through the contact d presses contacts e, f and a " stop " signal is actuated. The parts e, f are fixed. In another form, a swinging arm movable with the pointer spindle carries a roller which has a limited movement about its axis imparted by drag friction against a surface as the arm rotates. The arm carries a fixed contact and two movable, spring contacts which are actuated by pins on the roller.
Patent GB-933752-A (GB)
Title: Variable-gain amplifier
IPC: H03G1/00
Filed: 1962-05-28
Abstract: 933,752. Photo-electric control systems. FERNSEH G.m.b.H. May 28, 1962 [May 26, 1961], No. 20397/62. Class 40 (3). [Also in Group XL (c)] In a cathode coupled valve amplifier 4, 7 or the equivalent transistor amplifier (Fig. 2, not shown), the coupling impedance 6 is a photosensitive resistor whereby the gain of the amplifier may be controlled by varying the light falling on the resistor. This variation may be effected by varying the current in a lamp, as by varying a resistor 15 or controlling a transistor replacing the resistor. Alternatively, a diaphragm or a variable density filter may be interposed in the light path. The resistor 6 may be a photo-resistor or a semiconductor photo-cell. The amplifier may be mounted on a revolving support such as a magnetic tape scanner and the light may shine along the axis of revolution on a photo resistor mounted on the end of the shaft (Fig. 4, not shown).
Patent GB-421620-A (GB)
Title: Improvements in magnifying lenses for reading purposes
IPC: G02B25/00
Filed: 1933-07-20
Abstract: 421,620. Magnifying -lenses. BIRCHALL, H. J., Glenwood, Oaks Road, Shirley, Surrey. July 20, 1933, No. 20439. [Class 97 (i)] A magnifying lens for reading purposes has a convex front surface 2 and a plane rear surface 5, the surface 2 being part of a surface of revolution generated by the rotation of an arc of a circle 3, Fig. 7, about its chord 4 which lies in the plane face 5, so that sections of the curved surface by planes at right-angles to the line 4 are circular arcs, the radii of which diminish continuously from the centre towards each end. The face 5 is in the form of an elongated strip which is connected to the edges of the face 1 by bevelled surfaces 6 coated with an opaque substance to bring the strip 5 into greater prominence. Projections 8 are provided to raise the face 5 above the surface to be viewed.
Patent GB-1505662-A (GB)
Title: Clamping apparatus for releasably attaching one body to another body
IPC: B23Q1/00
Filed: 1975-05-15
Abstract: 1505662 Tool holders E MULLER [trading as FRITZ MULLER] 15 May 1975 [16 May 1974 27 March 1975] 20514/75 Heading B3H [Also in Division E2] An apparatus for releasably attaching a tool 2 to a ram or table 1 of a press comprises a T- headed clamping member 3 which is rotatable by a device 15 between a clamping position and a release position and which is axially movable by a rotatable member 7 to clamp the tool 2 in position. In one embodiment, Fig. 1, the tool 2 is clamped to the press ram 1 by supplying fluid through a conduit 22 into a cylinder 18 to cause a rack 15 attached to pistons 16, 17 to move to the right whereby a T-head bolt 3 is rotated into a clamping position (dotted lines). At the extreme right hand end position of piston 16, fluid is able to pass through a conduit 24 into an hydraulic motor 10 which rotates a sleeve 9 engaging a nut 7 on the end of the shaft of the bolt 3 whereby the bolt 3 is moved upwardly to clamp the tool 2 to the ram 1. The force is detected by a pressure sensitive member 8. When the tool 2 is to be released, fluid is supplied simultaneously to the motors 10, 16-18, the former motor 10 being supplied at a higher pressure. The operation of the motors is controlled by limit switching 12, 13, 20, 21. The bolt 3 may be retracted into a recess 36 in the ram 1. In another embodiment, Fig. 4, the bolt 3 is surrounded by a bushing 7a having an internal screw thread engaging a fixed screw 42 and an internal screw thread of opposite direction engaging a rotatable screw 43 connected to the bolt 3 by a pin 45. The tool 2 is clamped to the press ram 1 by supplying fluid to a motor 61a to move a rack 15a which rotates the screw 43 whereby the bolt 3 is swivelled into a clamping position and moved axially. At the end of its movement, the rack 15a moves a valve slide (55) (Fig. 5, not shown) causing fluid to flow through conduits (22a, 24a) to a motor 10a which moves a rack 41 to rotate the bushing 7a. The screw 43, which engages the rack 41, is caused to move upwardly thereby raising the bolt 3 into a clamping position. The fluid circuit for controlling the clamping apparatus also controls five other clamping apparatuses (Fig. 6, not shown). The bolt 3 may also be moved axially by cylinder (64) (Fig. 3, not shown).
Patent GB-682959-A (GB)
Title: Improvements in or relating to new asbestos-containing materials and processes of manufacturing the same
IPC: C08K7/12
Filed: 1949-08-08
Abstract: Asbestos is impregnated with a methyl polysiloxanic resin (of which the methyl groups are the sole organic groups present) and the impregnated mass heated at 300 DEG  to 500 DEG  C. at superatmospheric pressure for at least two hours.  Mechanically rigid materials, which have an electrical resistivity of at least 109 ohms per centimetre cube, even after soaking in water at room temperature for 24 hours, and which absorb less than 2 per cent of their weight of water after 12 hours' soaking, may be thus obtained.  The asbestos, with or without fillers or organic binders, may be in sheet form, or may consist of fibres obtained by shredding an asbestos wad, or may be an asbestos wad, fabric or felt.  The polysiloxanic resins are preferably used as solutions or dispersions, and may be present in proportions of from 3 to 70 per cent of the weight of the asbestos.  The impregnated material may be heated under pressure to insolubilize the resin, followed by heating with pressure at temperatures from 300 DEG  to 500 DEG  C.