baber/WOPTO huggingface dataset:
Patent GB-697884-A (GB)
Title: Improvements in or relating to devices for indicating or regulating angular velocities
IPC: H02P23/00
Filed: 1951-09-21
Abstract: 697,884. Electric correspondence control systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Sept. 21, 1951 [Oct. 11, 1950]. No. 22182/51. Class 40 (i). [Also in Groups XXXV and XXXVI]. The speed of a rotating body is controlled or measured by connecting the controlling or measuring device 3 in a rectifier ring demodulator 4 .. 7 which is fed by two voltages which are derived from a tacho-alternator 1 driven by the body 2 and are arranged to be in quadrature at the desired speed whereby the error signal at the device 3 is zero at the required speed and changes in polarity with the sense of the error. The two voltages may be obtained from a two phase alternator Fig. 3 (not shown) or by an R.C. phaseshifter 8, 9, 10 producing a voltage substantially in quadrature with the alternator output. The second voltage from an isolating transformer 14 is fed to a resistance 11 through a resonant circuit 12, 13 tuned to the speed frequency. The whole circuit operates in the manner of a conventional phase/frequency discriminator. The device 3 may be a D.C. regulating motor or moving coil galvanometer indicator or recorder. For alternator regulation further D.C. signal voltages may be introduced in series with the motor e.g. the difference between the actual power supplied by the alternator and that required by the load network. Alternatively for non-linear response, a non-linear resistor (e.g. rectifier) may be connected across the device 3.
Patent GB-281769-A (GB)
Title: Improved method of and apparatus for distilling crude oil from shale
IPC: C10G1/02
Filed: 1926-09-09
Abstract: 281,769. Spotz, C. A. Sept. 9, 1926. Carbonizing processes and apparatus. - Oil shale and the like are distilled by moving the material horizontally below the surface of a molten metal bath, allowing the finer particles of the residue to rise to the surface of the bath, removing the remainder of the residue from beneath the surface, and carrying off the volatiles arising from the surface, air being excluded. A retort 1 contains a molten metal bath 2 heated by hot gases in a flue 3. The shale from a hopper 6 is fed by a plunger 5 having an inclined face to below a partition 4 and a submerged perforated screen 7 which is suspended from and reciprocated by arms 7<a>, 7<b>. The volatiles are distilled from the shale and rise through the screen and the surface of the bath to an outlet 1<b>, the finer particles of the residue passing through the screen to the surface of the bath along which they are propelled, by blades 8 on rotary shafts 8<a>, towards an opening 9<a>. A discharging plunger 11 pushes the fine residue from i.he opening 9<a> and the coarse residue from below the screen to below the partition 10 so that the residues pass by an opening 1<c> to a conveyer. The plungers 5, 11, shafts 8<a> and the arms 7<a>, 7b are actuated from the same source of power through suitable gearing.
Patent GB-194254-A (GB)
Title: Improvements in and connected with spinning mules
IPC: D01H3/06
Filed: 1922-08-15
Abstract: 194,254. Soc. Alsacienne de Constructions MÚcaniques. March 1, 1922, [Convention date]. Mules.-In mules of the kind described in Specification 162,629, having a continuously-rotating driving-shaft, the speed of which varies between narrow limits, in order to obtain flexibility in the starting of the carriage on the outward run, means is provided to allow slip between the first motion shaft and the driving-shaft for a regulatable period at this change. The driving- shaft C is driven from the motor A or other first motion shaft by a belt B controlled by a tension pulley D carried by a counterweighted lever E. As the carriage runs in, an adjustable projection H engages a spring lever I and, through a cord K, draws down the lever E and slackens the belt. As the carriage runs out, the lever moves back and the pulley D re-engages the belt, increasing the tension gradually under the influence of the weights F, G, and enabling the shaft C, which has been rotating by reason of its inertia, to take up its normal speed. The lever I may be operated from the stop-rod L by the cam-piece M. The motor A can be started without any load and the load applied gradually to a smooth motion of the rod L. The mule can be stopped by means of the declutching device without stopping the motor A. Specification 14304/91 is referred to.
Patent GB-1459938-A (GB)
Title: Root crop conveying apparatus
IPC: A01D25/00
Filed: 1974-05-20
Abstract: 1459938 Root crop conveying apparatus DEERE & CO 20 May 1974 [21 May 1973] 22366/74 Headings AIF and A1P [Also in Division B8] Apparatus for conveying root crops comprises a vertical auger 135 mounted within a housing 134, the housing 134 having at its bottom end a root inlet 132, a feed conveyor 110 for discharging the roots into the inlet 132, the auger 135 being rotatable for advancing the roots upwardly, and a rotatable root sweeping device mounted in a housing (198) Fig. 2 (not shown) and including a plurality of outwardly extending rotating arms 208, the device being located near the upper portion of the inlet 132 with its axis of rotation substantially horizontal and at the same level as the top 142 of the inlet 132 to maintain the beets within the auger housing 134, in use. The roots are lifted by a root removing unit 52, which comprises a plurality of a cooperating pair of rotatably mounted digger wheels 54 and paddle wheels 58, the wheels 58 being anti-clockwisely rotated by a shaft 60, which in turn is driven by a shaft 82. The paddle wheels 58 deflect the raised roots to an endless conveyor 94 for transferring them to the feeding conveyor 110, which comprises grab rolls 112 driven by shafts 118. An idler (130) Fig. 2 (not shown) is disposed to rotate alternate rolls 112 in the same direction thereby facilitating removal of dirt from the roots. The harvester is connected to a tractor via a hitch 32. The power for driving each of the components is obtained from a take-off power shaft in the tractor via a power shaft 48. The feeding conveyor 110 carries the roots to the auger conveyor 135, which is drivingly connected to a sprocket 156 of the shaft 82 with a bevel gear (158) Fig. 2 (not shown) at the lower end of the auger shaft 152. The roots are then received by a conveyor 182 disposed near the upper end of the housing 134, which conveyor comprises a flexible conveying element 190, drivingly trained around rollers 188 and operated by a pneumatic control 192. The roots are conveyed to an accompanying truck. The root sweeping device is defined by vertical walls 200 and 202 and an arcuate top wall 204 connected to the walls 200 and 202 and the auger housing wall 136. Within the housing (198) Fig. 2 (not shown) of the device is mounted a square shaft 206 which is rotatably supported at opposite ends in bearings 205 and 207. A paddle 208 is connected to each of the flat sides of the shaft 206. Each paddle 208 is composed of resilient member 210 which is also arcuate at its free end in order to lie concentric with the auger wall 136.
Patent GB-168595-A (GB)
Title: Improvements in or relating to a method of and tool for manufacturing spur wheels
IPC: B23F5/14
Filed: 1921-08-23
Abstract: 168,595. Aktiebolaget Svenska Kullagerfabriken. Sept. 2, 1920, [Convention date]. Gear-cutting. - In a process for generating straight or helical spur gears the blank 5 is continuously rotated at a speed such that it moves through an angle equal to the pitch of the teeth to be cut or a multiple thereof while a tool, comprising a number of toothed racks arranged to operate in succession, makes a complete reciprocation comprising a working and an idle stroke. The tool 1 is divided by transverse grooves 3 into a series of rack teeth 4 which are relieved to provide top and side clearance, the number of transverse rows depending on the degree of accuracy required in the tooth profiles. Fig. 6 shows the method of operation of a tool 1 having teeth of pitch D, on a blank 5. In one process the blank rotates through a pitch distance while the tool, having a stroke T, makes a complete reciprocation so that the tool engages successive teeth at each working stroke and moves through half a pitch during the cutting. The necessary tangential movement D/2 for correct rolling is imparted to the tool the path of which is inclined at an angle V1 to the blank axis, as shown at R, Fig. 6. Thus after one revolution of the blank all the tooth gaps will be partially generated, the cutting being completed after readjustment of the tool and blank. Alternatively, the blank may be rotated through a whole pitch during the working stroke of the tool so that after one revolution of the blank each alternate tooth is completely generated. Other methods of working are described. The feed movement of the tool towards the blank axis may be effected either before the generating proper commences, or during the generating, or alternatively the feed may be imparted to the blank. Figs. 6 and 8 show the construction and operation of a tool for cutting helical teeth, the path R of the tool being in this case determined by the difference between the helix angle V and the angle V<1>.
Patent GB-906393-A (GB)
Title: An improved method of lasting shoes and the like
Inventor: KURDASH AHMED
IPC: A43D11/00
Filed: 1959-06-30
Abstract: 906,393. Boots &C. MEXICO SHOES Ltd. June 29, 1960 [June 30, 1959], No. 22410/59. Class 17 (2). In the manufacture of pointed toe shoes the toe portion of the upper is stitched together along a line 3 (Fig. 2), and surplus material 8 cut away so as to leave a narrow strip 9 which is bent under the last during the lasting operation and secured to an insole 7 by tacking or adhesive.
Patent GB-1344223-A (GB)
Title: Coated cemented carbide products
IPC: C22C29/00
Filed: 1972-05-12
Abstract: 1344223 Al 2 O 3  coated cemented carbides GENERAL ELECTRIC CO 12 May 1972 [26 May 1971 17 Dec 1971] 22446/72 Heading ClA An aluminium halide vapour, water vapour and hydrogen are passed over a cemented carbide substrate at 900-1250 C., the weight ratio of H 2 O to H 2  being 0À025-2À0 to form a substantially fully dense coating consisting substantially of α Al 2 O 3  of 1-20 microns thickness. The halide is preferably the chloride and the H 2 O may be formed in situ by the reaction of H 2  and CO 2 . The resulting product has a rupture strength of 150,000 psi. The cemented carbides used comprise one or more transitional carbides of a metal of Groups IVb, Vb and VIb of the Periodic Table cemented by one or more matrix metals of the group iron, nickel and cobalt. An intermediate layer is formed between the substrate and the coating and is believed to be the aluminate of the matrix metal.
Patent GB-241688-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L21/06
Filed: 1924-09-24
Abstract: 241,688. Fyffe, T. L., and Fyffe & Co., Ltd. Sept. 24, 1924. Joints with yielding outer part compressed.- A keyed, fluid-tight joint between a gun-metal, copper, brass or other " soft-metal " pipe and a second member such as another such pipe, a tap, a blind flange closure &c. comprises a tubular liner 7 integral with or connected in a fluid-tight manner to the second member and provided with one or more circumferential grooves 9 so that when the outer " soft-metal " pipe is compressed by means of clamping members 10, the pipe wall is caused to fit closely into the grooves, the depth of which is such as to constitute a keyed connection.
Patent GB-987472-A (GB)
Title: Circuit arrangement for generating a train of impulses
IPC: H03K4/72
Filed: 1962-06-13
Abstract: 987,472. Transistor sawtooth circuits. FERNSEH G.m.b.H. June 13, 1962 [June 14, 1961], No. 22685/62. Heading H3T. A circuit for generating a train of impulses having rectangular and sawtooth components comprises a first transistor T 1  switched on by rectangular driving impulses F and a sawtooth generator S driven by the same impulses, the output signals from the two circuits being fed to a resistive load 2 via transformer 22 such that the transistor T, and generator S are matched to the load. As described a train of rectangular pulses E are fed through an amplifier comprising transistors 9, 13 to the bases of transistors T 1 , 21, and the output B from transistor T 1  is fed to a tapping on the secondary winding 22<SP>1</SP> of transformer 22. The collector of transistor 21 is connected to a capacitor 24 which charges and discharges as transistor 21 is switched off and on, producing a sawtooth waveform G at the tapping on the load inductor 25, which is fed via transistor T 2  to the primary 22<SP>11</SP> of transformer 22. The turns ratio of the transformer windings is made to match the transistors to the load 2 which comprises the deflection coils 3, the load being made resistive by the addition of capacitor 6 and resistors 4, 5. In a modification, Fig. 2 (not shown), the transistors are connected to separate windings of the transformer 22.
Patent GB-1167165-A (GB)
Title: Apparatus for Automatic Welding.
IPC: B23K9/16
Filed: 1966-10-03
Abstract: 1,167,165. Welding by fusion. BATTELLE DEVELOPMENT CORP. 3 Oct., 1966 [20 Oct., 1965], No. 22749/69. Divided out of 1,167,163. Heading B3R. Apparatus for automatic arc welding spaced metal plates comprises a welding head carrying a contact tube biased towards one side wall of the gap between the plates, the contact tube being maintained at the correct spacing from the side wall by an interposed spacer. The apparatus is identical to apparatus described in Specification 1,167,163.
Patent GB-603724-A (GB)
Title: Feeding device for a continuous record strip, such as in an autographic register
IPC: B41L5/06
Filed: 1945-09-04
Abstract: 603,724. Feeding webs. WILLIAMS, W. P. (Standard Register Co.). Sept. 4, 1945, No. 22763. [Class 100(i)] [Also in Group XV] A feeding device for advancing a continuous record strip, e.g. in an autographic register, through successive step by step movements, comprises power means for producing vibratory movements, means for transmitting the movements to impart a unidirectional feed to the strip, means for arresting the strip feeding device when the strip has advanced a desired total amount, and means for disengaging the arresting means when desired thereby enabling the power means to continue the feed. As shown in Fig. 1, a rack 5 attached to a spring 6 at one end and to the core of an electromagnet 4 at the other, carries an adjustable pin 7 adapted to engage a pivoted contact arm 9 and to urge it against the action of a spring 13, into engagement with a contact 11 to close the circuit which energises the solenoid; a pin on the rack moves the arm 9 back if the spring 13 fails to operate. Thus the rack 5 is reciprocated continuously by the spring 6 and the solenoid 4. In a modification, Fig. 7, the solenoid and spring are reversed and the solenoid circuit is closed by a contact 24 on the rack 5 engaging a contact 25 on a detent arm 19. In both forms, a pinion 14 engages with the rack 5 and with a pinion 15 freely mounted on a shaft 16 and driving through pawl and ratchet mechanism, a pin wheel 3 which feeds the strip. A cam disc 21 fixed to the pin wheel 3 has a recess 20 which the spring-held detent arm 19 engages when a predetermined length of strip has been fed, thereby stopping the movement of the rack 5. Depression of a plunger 22 lowers the arm 19 and allows the feed to continue. A spring-pressed pawl 23 pivoted to the bottom of the plunger 22 bears against a flat part 7 of the arm 19 when the plunger is raised, Fig. 1, but when it is fully depressed, the pawl 23 slides on the inclined part 28 of the arm 19 and allows the arm to rise again, even though the plunger is still depressed.
Patent GB-281414-A (GB)
Title: A combined foam-generator and sprinkler for fire extinguishing purposes
IPC: A62C5/00
Filed: 1926-09-15
Abstract: 281,414. Simonis, H. S. Sept. 15, 1926. Fire-extinguishing by foam; sprinklers, automatic.-In a sprinkling installation using foam as the extinguishing medium, a hopper a and a conduit i are respectively arranged to deliver foam powders and water to a mixing and spreading dish h arranged above the place to be pro. tected. The outlet b of the hopper is closed by a valve f held in place by members d, e and a fusible link g. The water conduit is closed by a valve o and a similar fusible strut l, m, n. The The strut d, e, g, preferably melts at a slightly lower temperature than the strut 1, m, n. The pan h may be enclosed, and have its bottom and sides perforated. The foam apparatus may be used with water sprinklers in a single installation.
Patent GB-1001647-A (GB)
Title: Electron beam amplifier and apparatus thereof
IPC: H01J25/49
Filed: 1962-06-14
Abstract: 1,001,647. Electron beam parametric amplifiers. ZENITH RADIO CORPORATION. June 14, 1962 [June 27, 1961], No. 22878/62. Heading H1D. A transverse-mode electron beam device, e.g. a parametric amplifier, operative at a desired signal frequency, has an electron beam projected along a predetermined path, an electron coupler disposed along the path, cyclotron resonance being established for the electrons in the beam, the coupler including a bifilar helix coaxial with the beam path and having a pitch satisfying one of the relationships n=nc.flfc and n=n c (1-f/fc), where n is the number of helix turns per unit length and is other than zero, f is the desired signal frequency at which interaction occurs, n c  is the number of electron resonance cyclotron orbit periods per unit length and f c  is the cyclotron frequency. As shown, a parametric amplifier consists of a signal input coupler 13, and expander section 14 and a signal output coupler 15. The input and output couplers are identical and consist of a bifilar helix formed of conducting strips 32, 33, wound in the same sense as the orbiting electrons, and presenting an inwardly facing concave surface, Fig. 2A (not shown) so as to develope a substantially homogeneous field along the beam path. The coupler is tuned to the desired signal frequency, which is different from the cyclotron frequency, by a lumped inductance 38. The expander section 14 consists of a quadrupole pump, the individual electrodes 52 of which are tuned to the pump frequency by inductive loops 55, the structure being connected to an external pump frequency source. Due to the amplification process an idler frequency component is produced having a frequency higher than the signal frequency, but introducing noise at the output at signal frequency, and a further coupler 12, consisting of a bifilar helix, is positioned upstream of the input coupler 13 to act as a noise stripper at the idler frequency, the noise power on the beam at the idler frequency being dissipated in an external heat sink. In alternative embodiments, the input and output couplers may be flat conductive plates having an infinite phase velocity with a bifilar helical idler noise stripper disposed between the input coupler and a quadrafilar expander section excited at the pump frequency, or the idler frequency coupler may have an infinite phase velocity, or all components may have a finite phase velocity. In some of the embodiments, the quadrupolar expander section consists of four conductors formed of tightly wound helices. The entire assembly is rigidly supported by means of four insulator rods 58. The device may operate on the cyclotron wave mode or the synchronous wave mode.
Patent GB-505148-A (GB)
Title: Improvements in pulsators as used for milking machines
IPC: A01J5/12
Filed: 1938-08-03
Abstract: 505,148. Vacuum engines. AKTIEBOLAGET SEPARATOR. Aug. 3, 1938, No. 22932. Convention date, Oct. 6, 1937. [Class 122 (iii)] [Also in. Group I] A pulsator as used in milking-machines comprises chambers containing bellows which act on rockable arms connected to a valve member in a chamber intermediate the bellowschambers, said chamber communicating with a secondary pulsator and with two additional chambers connected respectively to atinosphere and vacuum. In the construction shown, bellows 1, 2 are located in chambers 3, 4, respectively, and communicate with each other through a controlled conduit 5. A valve chamber 6 is provided with a pivoted valve member 14 which is adapted to close the openings between the valve and two additional chambers 9, 10. The chamber 9 is open to atmosphere and the chamber 10 is connected to vacuum by means including a passage 27, and a pipe 24. The valve chamber 6 also communicates through passage 32 with a chamber 30 forming part of a secondary pulsator. The shaft 15 to which the valve member 14 is fixed is connected to rock arms 19. With the member 14 in the position shown, the piston 22 is acted on at both ends by atmospheric pressure, which is effective on the larger end to move the piston to the left. Certain teat cups (not shown) commimicating with the channel 26 are then open to atmosphere-and other teat cups communicating with the channel 25 are connected to vacuum. The chamber 3 through passageway 28 is also connected to vacuum, and the chamber 4 through passageway 29, the hollow piston 22, passageway 33 and chamber 9 is connected to atmosphere. Bellows 1 therefore expands and bellows 2 contracts, whereby one of the rods 19 is moved to swing over the valve member 14 and reverse the direction of movement of air through the pulsator. The piston 22 reverses its movement with consequent effect on the teats. Eventually the piston moves again in the opposite direction. To ensure that the valve member 14 will swing over sharply, the openings 12, 13 are formed in the poles of bar magnets 34, 35 and the member 14 is provided at its end with a soft iron armature. In other arrangements spring means are provided to assist the valve member when past the dead centre.
Patent GB-778021-A (GB)
Title: Process for the production of titanium
IPC: C22B34/12
Filed: 1955-08-09
Abstract: Titanium is produced by introducing a gaseous titanium halide into a liquid alloy consistng of at least one alkali or alkaline earth metal and one or more of the metals zinc, cadmium and lead. The liquid alloy may be covered with an alkali or alkaline earth metal chloride melt, e.g. carnallite, from which the titanium formed may be pumped continuously or intermittently.  The process may be carried out continuously by causing the liquid alloy to flow through the reaction chamber with the aid of induction currents or by mechanical means.
Patent GB-912044-A (GB)
Title: Improvements in filing cabinets
IPC: B42F17/00
Filed: 1958-12-01
Abstract: 912,044. Filing papers; indexing. BECKER, O. A. Dec. 1, 1958, No. 22987/62. Divided out of 912,043. Classes 16 and 146 (1). A filing cabinet 46 has sliding drawers 47 for the reception of vertically upstanding folders 3, the drawers having longitudinally extending partition members 53 which subdivide the drawer into two compartments, each compartment having an open top and an open side so that folders contained therein may be readily withdrawn through the open side. The front of the drawer carries a guide 58 receiving an index strip or strips, while a guide-plate 5 bearing a tab 6 is inserted between each group of folders 3 which bear individual tabs 4. An index panel 49 is slidably mounted on a guide 50. Alternatively, an index panel 52 is hinged to the member 53. The guide plates 5, Fig. 2 (not shown) are provided with index cards 57 slidably m ounted between rails 55. In another embodiment, Fig. 3 (not shown), the tabs 4 project from the top of the folders, while the front of the drawer carries index cards 65. The guide plates 101, Fig. 4, corresponding to the plates 5, are mounted on guides 103 in the manner shown in Fig. 5. The plates 101, Fig. 4, carry index cards 107 arranged in vertical slides, the cards being raised by tabs 108. The plates 101 are yieldable to permit deflection, thus permitting opening of folders without removing them from the drawer; reinforcing grooves 104 restrict the flexibility to the required extent.