baber/WOPTO huggingface dataset:
Patent GB-387339-A (GB)
Title: Improvements in or relating to strainer apparatus
IPC: B01D33/073
Filed: 1931-07-22
Abstract: 387,339. Filters. BURRELL, B. S., 3502, Fir Street; East Chicago, U.S.A. July 22, 1931, No. 20963. Convention date; June 23, 1930. [Class 46.] A rotary strainer drum comprises two cylindrical shells with coincident apertures and an intermediate straining medium, the apertures in the shell through which the fluid passes first being such as to form pockets for the retention of the solid matter. A straining element, comprising wire gauze held between perforated cylinders 28, 29, Figs. 1 and 2, fits closely in a stationary liner 13 in a casing 9 with its ends in annular bearing sockets sand is rotated by means of a shaft 36. Liquid or gas from an inlet 10 passes through Openings 14 in the liner, and the wall of the straining element and is delivered axially through an outlet 21. A member 37, which is pivoted to rest against a longitudinal section of the element opposite to the inlet 10, directs a portion of the strained fluid through a tapering slot 43 and outward through this section of the element so that impurities, carried round from the inlet 10 in the pockets formed by the apertures in the outer cylinder, are fluahed away through a slot 15 of the liner 13 to a waste outlet 17. In a modification shown in Figs. 4 and 5 the interior of the strainer is divided into compartments by a partition 74. The fluid enters axially and strained fluitl passes away through an outlet 67. A portion of the strained fluid is led back through a passage 90 and directed by a slot 91 in the liner 65 inwardly through a section of the strainer to the compartment behind the partition 74, flushing impurities away through a waste outlet 93. The Specification as open to inspection under Sect. 91 comprises also apparatus shown in Fig. 4 (Cancelled) in which the wire gauze is not protected by an inner perforated cylinder. The fluid enters through a pipe 50 and the main ,part is directed by a partition 59 to pass outwardly through the strainer to an outlet 47. A part, however, passes through apertures 60 and flushes solid matter from that part of the strainer, separated from the outlet 47 by the partition 59, away through a waste outlet 62. This subject-matter does not appear in the Specification as accepted.
Patent GB-1028107-A (GB)
Title: Improvements in and relating to controlled rectifier circuits
IPC: H02M1/088
Filed: 1964-05-21
Abstract: 1,028,107. Switching controlled rectifiers. LE MATERIEL ELECTRIQUE. May 21, 1964 [May 24, 1963], No. 21023/64. Heading H3T. [Also in Division H2] Switching of controlled rectifiers in series without dangerous over-voltages across any one rectifier is achieved by connecting a series circuit of resistance, capacitance and inductance across each rectifier, the control electrode being connected via a diode to the junction between the corresponding resistor and inductor, and further diodes being connected across each resistor and each inductor, In Fig. 1 the controlled rectifiers 1, 2, 3, 4 are in series with a load 8 across A.C. supply 7, the starting signal being applied only to rectifier 3; each rectifier is shunted by a high impedance Z 0  to stabilize the voltage distribution when the rectifiers are non-conducting. When rectifier 3 is turned on by the starting signal at transformer 11 each CRL circuit rings and passes a voltage through diodes D 2  and D 1  to switch on the other rectifiers. This voltage is limited by Zener diodes Z. In the second half-cycle of the ringing oscillation current cannot pass through the diodes D 2  and D 1 , and the Zener diodes together with the resistors R damp out the current peak. Diodes Do and D 1  also isolate the starting and ringing circuits from one another. If one rectifier accidentally becomes conducting, switching on of the rest can be prevented by including a transistor (Fig. 2, not shown), between each diode D 1  and the corresponding rectifier, the starting signal being applied to the emitter 15. With a large number of rectifiers, switching may not be possible at a point of the A.C. cycle near zero; this can, however, be achieved by connecting the starting signal (with diode Do) to all of the rectifiers (Fig. 3, not shown). This modification can also be applied to the transistor circuit of Fig. 2 (Fig. 4, not shown).
Patent GB-171435-A (GB)
Title: Improvements in vices
IPC: B25B1/20
Filed: 1920-07-13
Abstract: 171,435. Holder, E. R., and Morris, B. O. July 13, 1920. Vices.-A vice comprises a non- rotatable plain faced jaw co-operating with a turret-head of known kind having a number of gripping- f a c e s of different formations, mounted on a screw traversed slide, means being provided for frictionally locking the turret-head in position. In a modification the plain faced jaw may be mounted on the slide and the turret-head relatively fixed. A rectangular turret-head c, provided witn flat, V-sectioned, or .other gripping-faces c<1>, c<6> &c. on its sides, is rotatably carried by a screw-traversed slide b by means of a threaded pivot pin d engaging a coned nut e seated in a corresponding recess in the crown of the head, whereby, by rotating the pin d by a wrench engaging its hexagonal head f, the turret-head may be released or locked in a de. sired position. In a modified form of locking device the pivot pin is fixed to the slide, the coned clamping-member slides vertically thereon and is locked by a nut operated from above.
Patent GB-643487-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/46
Filed: 1947-08-05
Abstract: 643,487. Pliers. PHILIPS LAMPS, Ltd. Aug. 5, 1947, No. 21202. Convention date, Aug. 7, 1946. [Class. 61 (ii)] [Also in Group XL(a)] In a method of assembling the electrodes of an .electric discharge device, the ends of the electrode leads 3 are temporarily gripped, after insertion in a spacer 2, between the knife-edge 11 and flat face 8 of the jaws 7, 9; the relative movement of which can be limited by the screw 13.
Patent GB-511811-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P5/48
Filed: 1938-07-18
Abstract: 511,811. Converting ; automatic control of D.C. motors. IGRANIC ELECTRIC CO., Ltd. July 18, 1938, No. 21245. Convention date, July 21, 1937. [Classes 38 (ii) arid 38 (iv)] [Also in Group XXXVII] Speed.-In an arrangement providing individual and con-joint control for a number of D.C. motors forming a sectional paper machine drive, the motors, or, as shown, speed-regulating windings 6 thereon, are included in the respective anode circuits of a grid-controlled multi-anode rectifier 10, and the voltages applied to the several grids are controlled individually (e.g., automatically to maintain a given speed ratio between the motors) and also simultaneously, (e.g., by varying the speed of a control motor 22 with which the speeds of the individual motors are compared). Control of the individual grid voltages for the rectifier 10 is effected by inductances 21 the values of which depend upon the angular relationship between shafts 20, 24 as described in Specification 435,545, [Group XXXVII]. Where the control is effected by means of the field winding 6, a second rectifier 13 connected as shown is provided to enable current to persist in the winding during the non-conducting half cycles of the rectifier 10.
Patent GB-709877-A (GB)
Title: Improvement in electrically illuminated holders for writing instruments
IPC: B43K29/10
Filed: 1952-08-25
Abstract: 709,877. Lamps combined with writing instruments. LEGGE, F. P. April 13, 1953 [Aug. 25, 1952], No. 21254/52. Classes 39 (2) and 75 (3) A holder '10, Fig. 1, for a pen or pencil 11 has an electric lamp mounted in an offset position relative to its axis, the switch 21 controlling the circuit between the lamp and a battery or other source of current being arranged to be held closed by a gripping pressure in the act of writing. Fig. 3 shows a battery 19 mounted in a tubular casing 13 provided with a shoulder 17 near its forward end to form a seating for an insulating disc 16 forming a holder for a bulb 15, the adjacent end of the tube providing a support for a tubular hood 12 which is integral with the sleeve 10 carrying a ball point pen 11. A blade spring 14 serves to retain the pen in position within the sleeve 10. A resilient switch arm 21 riveted at one end to the casing 13 has its free end 23 bent inwardly so that it can be depressed through coincident apertures in the hood 12 and forward portion of the tube 13 to make contact with the lamp cap 24. In a modification, Fig. 6, a lamp bulb 45 is mounted at the end of an insulating sleeve 29 within a tubular housing 28 formed integrally with a parallel sleeve which receives a pen or pencil, and a spring- pressed contact 46 bearing against the centre contact of the bulb is connected by a lead 42 to one terminal of a battery contained in a casing carried in a pocket of the user. The other lead from the battery is connected to the sleeve holding the pen or pencil. The insulating sleeve 29 may be rotatable relative to its housing 28 and have a portion of its forward end removed so that when in the position shown the bulb circuit may be completed by depressing the inturned end of the resilient arm 51 on to the lamp cap. Accidental switching-on is prevented by rotating the sleeve 29 to bring the part 55 opposite the contact arm.
Patent GB-1490049-A (GB)
Title: Measurement of gap widths
IPC: G01B11/14
Filed: 1976-05-24
Abstract: 1490049 Measuring gap widths INTERNATIONAL BUSINESS MACHINES CORP 24 May 1976 [23 June 1975] 21377/76 Heading G1A [Also in Division H4] An arrangement to provide a measure of the width of a gap between a pair of substantially parallel surfaces 43, 45 includes a lens 40, means 50 to support the lens so that its optical axis is substantially perpendicular to the surfaces, means to oscillate an image-plane of the lens along the optical axis so that the image-plane periodically coincides with each one of the surfaces, means 1-15 to generate coincidence signals A, B when a spatial coincidence between the image-plane and each surface occurs, means 54-56 to generate an oscillation signal C representing the oscillation of the image-plane and means responsive to the coincidence and oscillation signals to provide a measure d of the width of the gap. The image-plane of the lens may be oscillated by oscillating the lens support (as shown), by varying the focal length of the lens, or by alternately exciting at least two light emitting areas disposed at different distances from the lens. The coincidence signals are generated by means of a pair of emitter-accepter devices 2, 5 and 3, 4 each comprising at least one light-emitting area 12 or 14 adjacent to one light-accepting area 13 or 15, and photosensors 6, 7. As described the areas are formed by optical fibres, the accepting areas annularly surrounding the emitting areas; alternatively the areas may be otherwise distributed, Fig. 2 (not shown) by mixing the fibres with each other. When the image-plane of the lens coincides with a surface, a focused spot of light is reflected back into the respective emitting area (pulses A, B indicating.no output from the photosensors), otherwise an unfocused image is received by both the emitting and accepting areas. The arrangement may be used to determine the separation between a mask and a semi-conductor wafer which may be scanned to obtain a separation profile which may be displayed, used to check distance tolerances, or used to re-adjust the separation.
Patent GB-235055-A (GB)
Title: Improvements in or relating to machines for the preparation of fodder
IPC: A23N17/02
Filed: 1924-09-10
Abstract: 235,055. Deutsch, L. Sept. 10, 1924. Magnetic separators.- Fodder falls into a trough 7 of non-magnetic material along which it is conveyed by a worm conveyer. A bank of electromagnets 5 is arranged to project into the trough, the pole pieces of the magnets being shaped to give a ratchet like surface and thus to facilitate the stirring of the fodder. The bank is carried on a frame working in guides 6 and mounted on a pivot 8 so that it may be swung outwards to remove from the magnets iron particles separated from the fodder.
Patent GB-438075-A (GB)
Title: Improvements in or relating to sheaf-binding harvesting machines
IPC: A01D59/00
Filed: 1934-07-23
Abstract: 438,075. Binding- machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.-(International Harvester C o. ; 606, South Michigan Avenue, Chicago, U.S.A.) July 23, 1934, No. 21451. [Class 6 (iii)] The control members actuated by hand levers for moving the binding deck forwardly or rearwardly to position it for the knotting operation and for vertically adjusting the coupling between the binder and the tractor are arranged concentrically one within the other. The binding deck and associated mechanism is mounted on brackets 20 carried by a rail 19 sliding in bearings 18 arranged in brackets 16 extending from an angle iron 15 running fore and aft of the binder. A link 24 extends from an eye 22 on one of the brackets to a lever arm 25 keyed to a shaft 28 provided at its other end with a crank arm 29a connected by a link 31 with a hand lever 32 working over a notched segment 34. The shaft 28 is carried at one end in a bearing in ears 36 of a bracket secured to a transverse angle iron 14 and the seat pipe 9 and at the other by a sleeve 41 secured to the angle iron 14. A sleeve 29 surrounding the shaft 28 and mounted on bushings projecting from the sides of the bearings for the shaft is provided with lever arms 27, 44, the arm 27 being connected by a link 26 with the coupling bar 5 coupling the machine to the tractor and the arm 44 being extended and provided with a handle and notched segment 45. In the Provisional Specification it is stated that the link connecting the coupling bar 5 to the lever 27 is adjustable and that a collar, which may be spring-pressed, is provided with a projection to form a closed eye with the end of pin by which the link is connected to the coupling bar.
Patent GB-298068-A (GB)
Title: Improvements in and relating to variable-speed governors
IPC: G05D13/00
Filed: 1928-07-25
Abstract: 298,068. Chorlton, F. O. L. July 25, 1928. Centrifugal governors. - In variable-speed governors in which the positions of a movable fulcrum in a speed-control lever determines the speed, the fulcrum is moved along a path of variable inclination to modify the conditions of working. The path may be curved, curved and straight, or differently-inclined straight slides or guides may be used. In a governor of the kind described in Specification 231,724 and shown in Fig. 1, the fulcrum d of the lever c is arranged in a block m which works in a guide of curved form, and is moved therein by a screw n. In a modification, Fig. 4, the fulcrum d, carried by a roller u engages the slotted end of a bell-crank s by which it is adjusted. The fulcrum may be moved by a direct connected member, or by a lever and link.
Patent GB-132259-A (GB)
IPC: H01M10/04
Filed: 1919-09-02
Abstract: 132,259. Kreher, M. Nov. 3, 1917, [Convention date]. Electrodes.-In an accumulator having inner and outer electrodes a, b as shown in plan, the inner electrode is formed with radial ribs a, the outer electrode b being formed with its surfaces parallel to the surfaces of the inner electrode.
Patent GB-276036-A (GB)
Title: Improvements in and relating to electric circuit control apparatus
IPC: H02M1/06
Filed: 1927-08-16
Abstract: 276,036. British Thomson-Norton Co., Ltd., (Assignees of Langmuir, 1.). Aug. 16,1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Low-pressure metallic-vapour apparatus. - To facilitate rapid deionization of a vapour-electric device a small amount of aluminium is added to the mercury, for example, 0.008 gram to 170 grams.
Patent GB-1138978-A (GB)
Title: Crushing device
Inventor: GOLOVSKY LJUDVIG PETROVICH
IPC: B02C1/00
Filed: 1966-05-16
Abstract: 1,138,978. Breaking. UKRAINSKOE RESPUBLIKANSKOE PROIZVODSTVENNOE OBJEDINENIE PO ZAGOTOVKE, PERERABOTKE I SBYTU VTORICHNYKH CHERNYKH METALLOV. 16 May, 1966, No. 21642/66. Heading B3E. Apparatus for breaking blocks of cast iron comprises a horizontal base-plate having a projection thereon, a wedge-shaped member disposed above the projection and means for causing relative vertical movement between the wedge-shaped member and the base-plate to cause the block to be broken between the projection and the wedge member. A block to be broken up is pushed from a table 6 by means 7 so as to project beyond a fixed wedge member 2. A base-plate 3 with a projection 4 thereon arranged underneath the wedge 2 is then lifted by means 5 so that the projecting part of the block is broken off. Successive parts are similarly broken off and fall to a conveyer 8 from which they may be pushed by means (9), Fig. 3 (not shown), to a conveyer (11), a pusher (12) returning them to the table 6, which then rotates 90 degrees so that they may be pushed lengthwise through the breaker means by the pusher 7. Alternatively a pusher 14 may push the broken parts transversely from the conveyer 8 and through second breaking means arranged at right angles to the first breaking means. The base-plate 3 may be formed with a plurality of parallel projections, Figs. 4, 5 (not shown), of decreasing height, the wedge member being moved successively from one to another. A base-plate with one transverse and several longitudinal projections may co-operate with two wedges, one fixed and transverse and the other movable to co-operate with each of the longitudinal projections in turn. A base-plate with two projections arranged at an angle to one another may co-operate with two wedge members arranged at a similar angle.
Patent GB-149332-A (GB)
Title: A cabinet for projecting films or the like, the upper part of which can be folded down so as to lie in the part below
IPC: G03B21/32
Filed: 1920-07-19
Abstract: 149,332. Petra Akt.-Ges. f³r Elektromechanik, (Assignees of Ruhl, H.). July 23, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Optical-projection apparatus.-A cabinet containing an optical projector and a mirror which reflects the projected image on to a screen has the upper part capable of being folded into the lower part so that its height may be reduced. As shown, the upper part a comprising a mirror c and screen b is hinged at d. The lower part has two doors g which open to allow the folding down of the upper part. The back e of the upper part forms the top of the cabinet when the upper part is folded down.
Patent GB-703788-A (GB)
Title: Drop head for a motor car body
IPC: B60J1/18
Filed: 1951-09-15
Abstract: 703,788. Vehicle hoods. ORR, J. H. May 5, 1952 [Sept. 15, 19511, No. 21719/51. Class 108(1) The rear edge of a foldable hood 18 is secured to a movable U-shaped member 19 having transversely extending pins engaging slots in the brackets 23, 24 secured to the body 21. When the head is folded the member 19 assumes a position adjacent the bottom of the compartment 26 thereby enabling a larger rearlight 20 to be fitted.
Patent GB-725638-A (GB)
Title: Improvements in pedal actuated drum sticks
Inventor: DELLA-PORTA ALBERT CLAUDE
IPC: G10D13/00
Filed: 1953-08-06
Abstract: 725,638. Drum beaters. PREMIER DRUM CO., Ltd. Aug. 6, 1953, No. 21786/53. Class 88 (2). A crank 3 carrying a pedal operated drum stick 2 is pivoted on a bracket 5 and is linked to a pedal 11 by pivoted elements 9, 16 forming an elbow joint. When the drum stick falls back after striking the drum, the link element 9 abuts against a rubber buffer 10 on the crank. The buffer may be carried by the element 9. A spring may be provided for either the pedal or the crank to return the drum stick to its normal position.
Patent GB-1321017-A (GB)
Title: Hydraulic operating apparatus
IPC: E02F9/20
Filed: 1971-04-19
Abstract: 1321017 Luffing boom apparatus HITACHI Ltd 19 April 1971 [18 Feb 1970] 21847/71 Heading B8H [Also in Division G3] A travelling machine for handling heavy articles comprises a pair of relatively movable arms 50 for gripping the article, and associated arms 51, 52 all operated by jacks 56, a manually controlled valve 4 linked to a set of levers simulating the arms, and a set of valves 5 to give position feedback to control spools (10) (Fig. 1, not shown, see Division G3). A course control is provided by a valve (7) in parallel with the valve 4. (For Figure 3 see next column)
Patent GB-1439095-A (GB)
Title: Photographic silver halide emulsion and element and method of forming colour photogrpahic images
IPC: G03C7/36
Filed: 1974-05-16
Abstract: 1439095 α - Pivaloyl - α(2,5 - dioxo - 3,4- trimethylene - 1 - imidazolidinyl)acetanilides FUJI PHOTO FILM CO Ltd 16 May 1974 [16 May 1973] 21921/74 Heading C2C [Also in Division G2] In synthesis Example 1 α-pivaloyl-α-(2,5- dioxo - 3,4, - trimethylene - 1 - imidazolidinyl)- 21 - chloro - 5<SP>1</SP>- [# - (2,4 - di - tert - amylphenoxy) - butyramido]acetanilide, (for use as a yellow-forming colour coupler), is prepared by reacting 2,5 - dioxo - 3,4 - trimethyleneimidazolidine with α-pivaloyl-α-chloro-2<SP>1</SP>-chloro-5<SP>1</SP>- [y - (2,4 - di - tert - amylphenoxy)butyramido]- acetanilide in dimethylformamide. Similarly prepared are (2) the corresponding 3,4-tetramethylene compound; (3) the α-(4-methoxybenzoyl)-compound; (4) the 3,4-tetramethylene compound corresponding to compound (3). Reference has been directed by the Comptroller to Specification 1,386,151.
Patent GB-785565-A (GB)
Title: Improvements in or relating to ultra-high frequency switches
IPC: H01J17/04
Filed: 1955-08-02
Abstract: 785,565. High frequency discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 2, 1955 [July 30, 1954], No. 22224/55. Class 39(1). [Also in Group XL(c)] A T.R. switch comprises a pair of coaxial cylindrical electrodes 12, 121, Fig. 1, connected to opposite walls 16, 161 of a cavity resonator 17, and a space charge is set up in the gap between the two electrodes to present a short-circuit to the incoming R.F. signal. An emissive coating 14 or 14<SP>1</SP> is provided on at least one of the overlapping segments 13, 13<SP>1</SP> of electrodes 12, 12<SP>1</SP>; in addition the surfaces of segments 13, 13<SP>1</SP> may be highly secondary emissive. The electrons are prevented from reaching rod anode 11 by a magnetic field between pole-pieces 18, 18<SP>1</SP>. The anode is supported by insulating cross-bars 33, 33<SP>1</SP>. Insulating rings 19, 191 confine the space charge. The anode is normally negative, but is raised to a positive potential during the transmitter pulses, In a modification, Fig. 3, the inner walls of electrodes 12, 121 are flared at 26, 26<SP>1</SP> to set up an axial component of electric field confining the space charge to the midplane A, A. Portions 26, 26<SP>1</SP> carry the cathodes 14, 14<SP>1</SP>. The walls may be flared over their entire length. In other modifications, overlapping segments 13, 131 are eliminated. In one embodiment, Fig. 7, the inner walls of electrodes 12, 12<SP>1</SP> are straight but the anode 11 is tapered in both directions. In Fig. 8 which illustrates an A.T.R. switch, electrode 12 only, carries a cathode 14. Electrode 12<SP>1</SP> is directly connected to the inner conductor 29 of resonant stub line 8. In Fig. 9, the anode is a cylinder 31 secured to a disc 32 sealed to the envelope 10. Disc 32 may be replaced by radial rods.