baber/WOPTO huggingface dataset:
Patent GB-378899-A (GB)
Title: Improvements in or relating to the control of milling and like machines for copying & reproducing
IPC: B23Q35/12
Filed: 1931-02-13
Abstract: 378,899. Milling-machines. COATES, H., Annasley, Cassiobury Park Avenue, Watford, Hertfordshire. Feb. 13, 1931, No. 1218. Drawings to Specification. [Class 83 (iii).] A milling machine, for copying and reproducing work, has its tool and tracer, which is similar to the tracer described in Specification 330,882, [Class 83 (iii), Metals, Cutting], moved along three mutually perpendicular axes by three reversible motors, the contactors of which are electrically interlocked so that only one motor is operative at a time. A controller for each motor allows of manual control in either direction or the placing of the motor under tracer control. A master controller can be set for die-sinking operation, that is the tracer and tool are moved in horizontal or vertical traverses across the face of the work, each traverse being followed by an end-step either up or down or left or right before a reverse traverse commences, and the tracer and tool are fed in and out during each traverse according to the configuration of the work. The direction of the traverse and of the end-step movement is selected by another controller. Alternatively, the master controller can be set for a profiling operation on the edge of the work, that is the tool and tracer are moved in a single vertical or horizontal traverse with the tracer spring biased right or left or up or down, and during this operation there is no in or out feed. A repeater-device is arranged so that when the tracer-contacts close to energize one of the contactors for an in or out feed during die-sinking, or for an up or down feed during horizontal profiling, or for a right or left feed during vertical profiling, the repeater-device operates after a short interval to interrupt the circuit of the contactor, thus relieving the tracer-contacts from a circuit-breaking function, and causing the feed to be effected in a step-by-step manner so as to ensure accurate copying. At the end of a die-sinking traverse, a relay is de-energized and then immediately re-energized. During the retarded pick-up movement of this relay, it energizes a contactor for effecting an end-step. By adjusting the retardation, the closeness of adjacent traverses can be adjusted. When any contactor opens the corresponding motor is connected in a local rheostatic braking-circuit. Subsidiary apparatus includes an automatic overload device to stop the whole machine if the tool motor is overloaded, a pump-motor for circulating lubricant and a gyrostatic steadying motor for the tracer.
Patent GB-1333871-A (GB)
Title: Method and apparatus for making a drill screw with an extruded point
Inventor: REILAND B F
IPC: B21K5/02
Filed: 1971-01-11
Abstract: 1333871 Self-tapping screws; forging; making screws TEXTRON Inc 11 Jan 1971 [22 Jan 1970] 1302/71 Headings B3A B3H and B3N A drill point self-tapping screw is cold forged from a blank 54, Fig. 12, between a pair of cooperating dies 62, 63 which form longitudinal flutes 34 on the blank end portion 58 and allow unrestricted longitudinal extrusion of the end portion to form a drill tip with an elongated grain structure which has a greater tensile strength than the rest of the blank. The dies 62, 63 have offset jaws 66, 67, Fig. 15, and each die has a side face 73 which co-operates with the side of the jaw of the other die to completely surround the blank laterally. The jaws have inclined forward faces 70 to produce a rake angle of 5 degrees on the front face 39 of lands 36 between the flutes. The cutting edges 40, 41 of the lands 36 are machined after forging. The blank is then threaded, for example, by rolling.
Patent GB-606459-A (GB)
Title: Improvements in twist drill gauges
IPC: B23Q17/09
Filed: 1946-01-15
Abstract: 606,459. Angle gauges. ZIMMERMANN, E. Jan. 15, 1946, No. 1327. Convention date, Jan. 15, 1945. [Class 97 (iii)] An instrument for testing the angles of a twist drill comprises a channel member of V- section 10 adapted to receive the drill 26, a graduated quadrant 13 upstanding from the ridge of the channel member 10, an arm 15 pivoted at the centre of the quadrant and provided with an extension 18 moving over the scale and with means for locking, and a second arm pivoted at one end in a slot in the arm 15. 23 is a lock-nut for fixing the second arm 22. The ends 12 of the channel member 10 and 25 of the arm 22 are formed at suitable angles for testing the shape of the drill.
Patent GB-1496451-A (GB)
Title: Cylinder head for a reciprocating piston internal combustion engine
IPC: F02B3/06
Filed: 1976-01-14
Abstract: 1496451 Cylinder head for IC engine KLOCKNER-HUMBOLDT-DEUTZ AG 14 Jan 1976 [29 March 1975] 01375/76 Heading F1B A cylinder head 1 of cylindrical shape, which is held to a crank-case, cylinder block or cylinder liner by tie-rods (not shown) extending through lugs 7, is provided with a frusto-conical internal wall 10 to take stresses while the thinner external wall 3 is free to expand and contract and form a good seal with a gasket 6. The wall 10 divides the head 1 into two coolant chambers, an inner chamber 11 and an outer chamber 12 to which water is supplied by a branching duct (not shown) to one side of the head. At the opposing side there is a connection between the two chambers 11, 12 and an outlet (also not shown). In the inner chamber 11 the water may be directed downwardly along the frusto-conical wall 10 towards the head base 2. Gas pockets 13 are formed adjacent inlet and exhaust poppet valves and interupt the frusto-conical wall 10. However to take load, the outer walls 14 of the gas pockets are made the same thickness as the frusto-conical wall 10.
Patent GB-685545-A (GB)
Title: Improvements in or relating to refuse collecting vehicles
Inventor: DEAR ALEXANDER THOMAS CAMERON
IPC: B65F3/18
Filed: 1950-01-16
Abstract: 685,545. Road sweeping machines. LEWIN ROAD SWEEPERS, Ltd. Jan. 19, 1951 [Jan. 16, 1950], No. 1406/50. Class 107 [Also in Group XXX] A refuse collecting vehicle of the kind comprising a refuse receiving compartment and conveyer means for feeding refuse to the compartment (especially a road sweeping machine) has the refuse compartment 27 at the rear of the vehicle, a sloping floor 28 down which the refuse slides by gravity to the rear end, conveyer means 16 feeding the refuse to the upper front end of the refuse compartment (whence is passes through opening 25) and a refuse discharge opening at the lower rear end of the refuse compartment, closed by a door 34. The door 34 is actuable from the forward driving compartment 15, and when fully opened is elevated to such a height relative to the ground as to clear the full charge of refuse gravitationally discharged from the discharge opening. The front, steerable, wheels 14 are driven by engine 11. The space 46 forms a water tank and is filled by pump 50. The space 54 may form a fuel tank. The door actuating means is double acting hydraulic rams 42 controlled from the cab by valve 44. An opening 57 is provided for the insertion of bulky objects. The sweeping brush may be supplied with water as disclosed in Specification 685,550. The further features disclosed in Specification 685,546, 685,547, 685,548, 685,549, 685,550, and 685,551 may be incorporated.
Patent GB-157744-A (GB)
Title: Improvements in the arrangement of circuits for thermionic amplifiers
IPC: H03F3/36
Filed: 1921-01-10
Abstract: 157,744. Massolle, J., Engl, J., and Vogt, H. Oct. 9, 1919, [Convention date]. Addition to 157,733. Thermionic amplifiers. - Relates to modifications of the multi-valve amplifying arrangements described in the parent Specification, in which the grid-filament space g2-k2 of a valve II is connected in series with the anode-filament space a1-k1 of the preceding valve I. The present invention relates to methods of modifying the constant potential of the grids. In the arrangement shown in Fig. 1, an auxiliary negative potential is applied to the grids of the valves by means of resistances w1, w2 and batteries h1, h2 connected in parallel with the grid-filament spaces. Resistance variations across the selenium cell Z affect the potential distribution of the batteries b0 and h1 such that the two variations of potential on the grid g<1> are additive. Thus if the resistance of Z diminishes, the positive potential applied to the grid g1 by the battery b0 will increase, whilst the negative potential applied by the battery h1 will decrease, and the resultant variation of the grid potential will be the sum of the two variations. Changes in the anode-filament resistance of the valve I similarly affect the grid of valve II. In another modification, Fig. 2, the auxiliary battery h1 is connected in series with the grid-filament space g1-k1 and the reverse condition obtains, the resultant variation of potential of grid g1 being the difference of the two individual variations. The auxiliary negative potential h2 is applied in the second valve to a second grid gh2. According to a still further modification, Fig. 3, suitable for the amplification of alternating currents, the grid potentials may be modified by the insertion of condensers c1' c2, and further by the insertion of suitable resistances in parallel with the condensers c1, c2, or with the grid-filament paths. An auxiliary negative potential eh may be applied to the grid g2, or to a second grid, through a resistance wh. Another arrangement is described in which the variable element Z and both anode circuits are fed by a common battery. Each succeeding valve may be constructed to take a greater anode current than the preceding one, or valves may be connected up in parallel for a like purpose.
Patent GB-1036864-A (GB)
Title: Improvements in or relating to hay making implements
IPC: A01D78/10
Filed: 1963-03-11
Abstract: 1,036,864. Haymaking machines. C. VAN DER LELY N.V. March 11, 1963 [March 23, 1962], No. 1753/66. Divided out of 1,036,861. Heading A1F. The subject-matter of this Specification is identical with that of Specification 1,036,862 but the claims relate to the adjustment of the supporting groundwheels.
Patent GB-1009665-A (GB)
Title: Improvements in or relating to constant speed drives
Inventor: MOSS NORMAN
IPC: F16H3/44
Filed: 1961-01-16
Abstract: 1,009,665. Engine turning gear. PLESSEY CO. Ltd. Jan. 11, 1962 [Jan. 16, 1961], No. 1772/61. Addition to 1,006,653. Heading F1K. [Also in Division F2] In a constant speed drive of the type described in the parent Specification wherein constant speed of an output shaft 8 driven through a variable ratio planet gear 4 by a variable input 2 is obtained by speed responsive control of an auxiliary motor 1 which controls the ratio of the variable gear 4 the input shaft 16 of which is maintained above a predetermined speed, the auxiliary motor 1 drives the variable input 2 through gearing 1a, 23, 24 and one-way clutch 25 in parallel with the variable gear 4 to start the prime mover. The pinion 24 is axially slidable out of mesh with the pinion 23 to disengage the starter drive.
Patent GB-726835-A (GB)
Title: Permanent-magnetic coupling
IPC: F16D27/01
Filed: 1953-01-21
Abstract: 726,835. Magnetic couplings. FLENDER, A. F., [trading as FLENDER & CO., A. F.]. Jan. 21, 1953 [Jan. 21, 1952], No. 1777/53. Class 35. A permanent magnet coupling has each of its members provided with permanent magnets of alternate polarity. One member carries M<SP>1</SP> magnets and the other M<SP>2</SP> magnets and the section of each magnet is as shown in Fig. 6. Each magnet has a non-magnetic parting line I so as to provide a N and a S pole near the air-gap separating the two coupling members. In a modification, the magnets M<SP>1</SP> are subjected to centrifugal forces against a spring F so that, if the member carrying M<SP>1</SP> is the sensing member, its magnets 17<SP>1</SP> move from a diameter D to D<SP>1</SP>, Fig. 5 (not shown), as the speed rises. The displacement of M<SP>1</SP> relative to M<SP>2</SP> causes an attractive force between the two coupling members. A mixture of oil and powdered iron or ferrocarbonyl may be provided between the coupling members.
Patent GB-1034631-A (GB)
Title: Improvements relating to pulse amplitude modulating circuits
IPC: H03K7/02
Filed: 1965-01-15
Abstract: 1,034,631. Pulse modulation circuits; gating circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 15, 1965 [Jan. 30, 1964], No. 1797/65. Headings H3T and H4L. In a pulse amplitude modulating circuit the input analogue signal UE1, Fig. 7, which is a slowly varying negative D.C. signal, is supplied to the base circuit of an NPN transistor T2 operating in the grounded collector mode and the negative-going gating pulses UE2 are supplied to the free end of the emitter resistor RE, the modulated output signal UA being taken from the emitter terminals A of the transistor. This arrangement is stated to avoid the overshoot which occurs in a known circuit, Fig. 1 (not shown), in which the gating pulses are connected to the collector of a similarly connected PNP transistor. An improvement in linearity may be effected by connecting a PNP transistor T3 in series with the load resistor RL of Fig. 7, Fig. 10 (not shown), the base of the transistor T3 being connected to the terminal A. A further improvement may be achieved, Fig. 12 (not shown), by connecting a suitably dimensioned resistor RK between the emitter terminal of transistor T3 and a source of voltage + V. The noise level may be reduced by arranging for the transistor T3 to be out off between pulses, Fig. 14 (not shown), a resistor R3 being connected between the base of transistor T3 and a source of positive voltage.
Patent GB-632053-A (GB)
Title: An appliance for securing parcels and other bundles to the carrier or framework of acycle, motor cycle or the like
IPC: B62J7/08
Filed: 1948-01-21
Abstract: 632,053. Straps and bands ; strap fastenings. GREENMAN, C. Jan. 21, 1948, No. 1894. [Classes 44 and 109] [Also in Group XXXI] A device for securing parcels on to the carrier or framework of cycles, motor cycles, and like vehicles comprises a strap fitted at each end with an anchoring member adapted to be secured either to the projecting end of a wheel axle or alternatively about one of the frame members. As shown, the strap is in the form of two lengths of strip rubber 1 or other suitable material. The ends of each strip 1 are threaded through slots 2 which may be oblong,' round or square, formed in the upper ends of the anchoring members 3. Each member 3 comprises a depending portion 4 formed with an opening 5 of sufficient diameter to engage about the rear wheel axle. The lower end of each anchoring member is formed with a hooked portion 10 to engage about a tubular frame member.
Patent GB-912642-A (GB)
Title: Improvements in or relating to foil containers
IPC: B65D1/34
Filed: 1960-01-19
Abstract: 912,642. Packages; foil containers. IMPALCO FOILS Ltd. Jan. 19. 1960 [Jan.22, 1959], No. 1983/60. Classes 66 and 94 (1). A foil container for packaging food is formed with a shoulder 20 on which is mounted a cover 14, an upstanding lip 24 being folded over the cover to secure it to the container. The lip is reinforced by a bead 40 which is interrupted at the corners 28 of the lip so that the lip willlie flat against the cover 14.
Patent GB-343698-A (GB)
Title: Improvements in or relating to the treatment of textile materials
IPC: D06M11/05
Filed: 1930-01-20
Abstract: <PICT:0343698/IV/1> The lustre of knitted fabrics or garments constructed of yarns of organic esters of cellulose such as cellulose acetate or organic ethers of cellulose, alone or mixed with silk, cotton, wool, or reconstituted cellulose is reduced by subjecting the goods to a delustring treatment while maintaining them in such a position that distortion or wrinkling is avoided or prevented.  The goods may be treated while stretched or while held substantially vertically in respect of the wales and courses.  In some cases, hosiery is suspended in a frame by attaching the toe and top portions of the hose by threads to opposite sides of the frame, or the hose is placed over wire frames which maintains it stretched. In another method, the goods are placed in open-mesh net bags 3, Fig. 1, weighted at 7 and suspended from rods by threads passed through their tops, the toes being weighted to maintain them vertical in a chest supplied with wet steam.  The delustring may also be effected by a soap bath at 95 DEG  C. for 30 minutes; or by a bath containing soap and Turkey-red oil in which the goods are treated for 1 hour 65 DEG C., 1/2 -hour at 75 DEG  C., 1/2 -hou at 85 DEG  C., and finally, 1/2 -hour at 92-93 DEG  C.  In some cases, the delustring is effected by precipitating in the goods white insoluble salts such as barium sulphate or zinc sulphide, for example, the material may be treated with barium chloride and then with sulphuric acid, or with zinc chloride, which acts also as a swelling-agent, and then with sodium sulphide.  Barium sulphocyanide, acting as a swelling-agent, may also be employed or a foreign swelling-agent as acetic acid may be added to the solution of the salt from which the precipitate is obtained. Dyes may be added to the delustring bath, or the goods may be dyed before or after the delustring treatment.  Specification 318,642, [Class 2 (ii), Cellulose &c.], is referred to.
Patent GB-752354-A (GB)
Title: Improvements relating to processes and apparatus for the manufacture of sulphur
IPC: C01B17/04
Filed: 1954-01-25
Abstract: <PICT:0752354/III/1> In the production of sulphur by passing a gaseous mixture of sulphur dioxide and hydrogen sulphide through an apparatus comprising two catalyst layers connected by an arrangement of valved conduits such that the gas mixture can pass through the two catalyst layers in succession or through one of the two layers, the other being disconnected, the valves between and immediately following the catalyst layers are liquid sulphur seal valves, the catalyst layers and liquid sulphur seal valves being housed in a single chamber.  As shown hydrogen sulphide is partially burned with air in combustion chamber 3 and the resulting sulphur dioxide-hydrogen sulphide mixture passed via valve 27 through catalyst layer 5, the liquid sulphur produced being collected at the bottom of the catalyst chamber and drawn off by means of valve 8. The gases then pass, via liquid sulphur seal valve 9, conduit 10 wherein the gas is cooled by a spray of liquid sulphur from nozzle 11, and valve 12, through contact layer 13.  The residual gas passes through conduit 14, liquid sulphur seal valve 15, conduit 16 wherein the gas is cooled by a spray of liquid sulphur from nozzle 17, and chimney 28.  When only the lower catalyst layer is to be used (Fig. 3, not shown) valves 8, 19, 23, 27 and 29 are opened, while valves 12, 18, 24 and 271 are closed. When only the upper catalyst layer is to be used (Fig. 4, not shown) valves 12, 18, 24 and 271 are opened, while valves 19, 23, 27 and 29 are closed.
Patent GB-1102508-A (GB)
Title: Process for purifying polyolefines
IPC: C08F6/02
Filed: 1967-01-16
Abstract: Crystalline polymers of alpha-olefines, e.g. propylene, are made by polymerizing the olefine in the presence of an alkylaluminium compound and a reduced titanium halide in a diluent to form a slurry, quenching the slurry with an alkanol, treating the alkanol-quenched slurry with an acid selected from phosphoric acid of concentration about 85% or higher, and sulphuric acid of concentration 98% or higher, in an amount of acid about 0.5 to 2 equivalents per equivalent of halogen residue calculated to be present in the slurry, and thereafter extracting with an aqueous alkaline reagent.  The exemplified catalyst is TiCl4 reacted with aluminium sesquichloride, "aged" at 0 DEG  to 3 DEG  C. overnight, and heated for 4 hours at 85 DEG  to 125 DEG  C., and this product mixed with Al(C2H5)2Cl.
Patent GB-448894-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/04
Filed: 1935-01-23
Abstract: 448,894. Sets. STEUART, D. S. S., St. Mark's House, St. Mark's Square, and HAMILTON & BRANDON, N. B. M. DOUGLAS - HAMILTON, DUCHESS OF, 25, St. Edmund's Terrace, both in Regent's Park, London. Jan. 23, 1935, No. 2271. [Class 40 (iv)] A set designed to leave the user's hands free comprises a sensitive microphone which, with the aid of a sound collecting mouthpiece of the kind described in Specification 448,864, can be operated at a distance of about two feet, and an ordinary receiver or an earpiece connected by flexible tubing with a sensitive moving coil receiver carried by an extensible support controlling springs which replace the usual hook switch. In the arrangement shown in Fig. 2, the receiver 6 is carried on a telescopic arm controlling a switch 15, 16 and having an indicator 17 to show the condition of the switch. The arm is mounted so that it can be arranged on either side of the transmitter or two arms and receivers may be provided. The set includes also Bowden or lever mechanism or both for controlling the application of a damping member to the microphone diaphragm and a lever for actuating a spring-operated harmner for agitating the granules to prevent packing. An alternative damping device comprises an inflatable bulb mounted to press on the diaphragm. The dial mav be mounted in the mouth of the soundcollector, Fig. 7, and provided with a sounddeflecting cone 28<1> at the rear. As shown in Fig. 8, a sensitive moving coil receiver is mounted in the same casing as the microphone and is connected by a pipe 48 to an ear-piece 49 carried by lazy-tongs 51. The switch controlling the line circuit is arranged to be actuated by the extension of the lazy-tongs and by removing the ear-piece from its clip without extending the lazy-tongs.
Patent GB-309248-A (GB)
Title: Improvements in or relating to duplicate-writing appliances
IPC: B41L3/20
Filed: 1928-01-24
Abstract: 309,248. Gilbert, A. Jan. 24, 1928. Bock-keeping; books with tear-out portions.- A device for facilitating the making of duplicate entries on account sheets and the like comprises a backing-plate 1, Fig. 3, of metal or other hard material, and a clamping-bar 5 carried at its ends by arms 6 pivoted to the backing-plate at points spaced inwardly from an edge along which the sheets are held by swinging the bar downwardly. The bar 5 is made of metal, of angle-section, and carries a pivoted catch 8 for fastening it at the edge of the plate. Adjacent to its edge the plate may be provided with two or more vertical posts 3 which project through corresponding apertures in the sheets and are closed at their tops by the clamping-bar when the latter is fastened. The account sheets are preferably in the form of a bound pad, with carbon-coated underfaces, and may have a series of spaced apertures to receive a line of pins 4 on the base 1, these pins serving as lateral stops for registering a record card which is inserted beneath an account sheet to receive the duplicate entry. A sheet of cardboard or the like hingedly mounted at the right-hand edge of a fabric sheet which is held beneath the pad of account leaves is arranged to be swung beneath a record card receiving an entry, in order to prevent the marking of the sheets beneath it. A removable case or cover to enclose the backing- plate and pad comprises a metal plate 15, Fig. 7, with a side channel 1 to receive their lefthand edge, apertures 17 being provided on an edge of the plate 15 to receive corresponding studs on the underside of the backing-plate 1. A pivoted catch 19 on the backing-plate holds the latter in postion on the plate 15 of the cover. The cover is completed by a hinged leather 20 flap with side and end pieces to enclose the contents. For use with a single account-sheet, or a thin block of sheets, the backing-plate may have a marginal stop formed by an edge strip, the pins 3 being dispensed with.