baber/WOPTO huggingface dataset:
Patent GB-777655-A (GB)
Title: Photo-electrically controlled servo device
Inventor: RAPP GEORGES
IPC: G05D3/14
Filed: 1955-07-11
Abstract: 777,655. Photo-electrically controlled servo systems. S.I.R.E.L.E.C. July 11, 1955, No. 20066/55. Class 40 (3). [Also in Group XL (c) A servo-device includes between a movable control member and a movable servo-member a photo-electric limb comprising a light source and two photo-cells fixed on the servo-member and a diaphragm fixed on the control member so as to come between the source and the photocells in such a way that on relative displacement of the control and servo-members the cells are differentially illuminated, an amplifier for amplifying the currents from the cells, and motor means directly fed by the amplified currents to drive the servo-member in the appropriate direction to restore balance. As shown, the device comprises a control member in the form of a rotatable frame 1 carrying a winding to which is applied a variable voltage, and a servo-member formed of a rotatable flywheel 3 having thereon windings 2, 21. The frame 1 carries a diaphragm 9 disposed between a light source 5 and photo-cells 6, 6<SP>1</SP> carried by the flywheel. The cells are connected to an amplifier 11 (see Group XL (c)) feeding a motor 12 for driving the flywheel 3. By this arrangement being such that on any relative displacement of the frame and flywheel the diaphragm moves to a position reducing the illumination of one cell while increasing the illumination of the other cell, and motor 12 operates to rotate the flywheel until the illumination of the cells are equalized. The amplifier may include means for adding algebraically the amplified voltage of one cell to a voltage representing a derived function of the output of the other cell.
Patent GB-1038006-A (GB)
Title: Terminal block
IPC: H01R25/00
Filed: 1964-05-14
Abstract: 1,038,006. Two-part couplings; plugboards. G. GLASEL. May 14, 1964 [Dec. 14, 1963], No. 20087/64. Heading H2E. A terminal block having a housing 8 of insulating material comprises a terminal socket 6 arranged in the housing and an associated contact pin formation having an extension 4 which extends through the socket into the housing and which is secured to the socket and/or the housing by a bent-over portion 5. A conductor is secured in the socket 6 by tightening a clamping screw 7. The pin formation comprises a single flat pin 1 or a plurality of flat pins 1, 2 and 3 (not shown) which are connected together and to the extension 4. The block which may have several sockets in its housing may be screwed or spring attached to a support rail which is suitably positioned against locating lugs 14 on the housing. A rib 15 may be provided on the housing 8 to reduce current leakage from the pin formation to the support rail.
Patent GB-1380858-A (GB)
Title: Cotton processing with procedure for reducing the byssinotic effect  thereof and apparatus therefor
IPC: D01G21/00
Filed: 1973-04-27
Abstract: 1380858 Steam treatment of cotton BURLINGTON INDUSTRIES INC 27 April 1973 [1 May 1972 25 May 1972] 20088/73 Headings D1F and D1L In a process for reducing the byssinotic effect of cotton, the cotton in loose, lap or bale form, during its conventional processing from a raw cotton supply into a sliver for spinning is subjected to a dry steam environment for a time and at a temperature sufficient to raise the temperature of the cotton to at least 100‹C. The moisture absorbed by the cotton during the steam treatment is preferably in the range 2-25% by weight. The steam treatment is preferably carried out prior to the carding step. In one embodiment the supply of cotton in loose form from the ginning process, the bale opening process, or the blending process is fed into a chamber 10 in which it is compressed at the inlet end e.g. by spiked rollers 18, and withdrawn at the outlet end e.g. by spiked rollers 18 and in the chamber 10 is treated with dry steam; the loose treated cotton is fed back into the process line. In a further embodiment, the supply of cotton in lap form from the ginning process or from the bale opening process is fed through a dry steam treatment chamber 24 on a conveyor, and fed, still in lap form back into the process line. In a further embodiment, the cotton bales are loaded into a pressure steam chamber 44 and repeatedly subjected to the steps of evacuation and pressure steaming; the treated bales are removed and fed back into the process line. In a preferred form of apparatus for treating a cotton supply in loose form, the cotton in a pneumatic conveyor 112 is separated at 130 and fed via inclined shoots 132, 134 to a hopper 136 positioned above the inlet of a vertically disposed treating chamber 118. The cotton is compressed into the inlet of chamber 118 by pressing pads 138 performing a cyclic compressing action. Pivotable or stationary detents 154 may be provided at the inlet to permit entry of cotton into chamber 118 but prevent the cotton coming out of the inlet. The compressed cotton passes down through the chamber to a discharge device 124 in which the cotton is removed from chamber 118 by spiked rollers 158 and passed to a third spiked roller 166 which opens and breaks up the cotton into loose form with the aid of roller 170. The loose treated cotton is conveyed in pneumatic conveyor 114 back into the process line. At the central portion of the chamber 118, there is provided a surrounding steam manifold 174 which distributes steam into the chamber 118 via openings 178. The steam leaves the chamber 118 via the inlet and outlet openings and is conveyed away via conduit 182.
Patent GB-293768-A (GB)
IPC: C09B3/00
Filed: 1928-07-11
Abstract: 293,768. I. G. Farbenindustrie Akt.- Ges. July 11, 1927, [Convention date]. Cyclic ketones and quinones, some of which are vat dyes, are prepared by heating an aromatic mono- or poly-ketone, containing, in one aromatic nucleus, at least one free peri-position to the ketone carbonyl, and, in another aromatic nucleus, at least one free ortho-position to the same carbonyl group, with aluminium chloride and an alkali chloride in presence of oxygen or a gas containing oxygen. The use as parent materials of 2-aroylbenzanthrones and derivatives and substitution products of 4-benzoyl-1 : 8-naphthalic acid or its anhydride (see Specificaticns 287,050 and 288,985) is excluded. In examples, 2-chlorbenzanthrone is prepared from 4-chlor-1- benzoylnaphthalene, 2-cyanbenzanthrone from 4- cyan-1-benzoylnaphthalene, benzanthrone-2-carboxylic acid from 1-benzoyl-4-naphthoic acid, 4 : 5, 8 : 9-dibenzpyrene-3 : 10-quinone from 1 : 4- dibenzoylnaphthalene, 3 : 4, 8 : 9-dibenzpyrene-5 : 10-quinone from 1: 5-dibenzoylnaphthalene or from Bz1-benzoylbenzanthrone 3(2) : 4(1)naphtho- 8 : 9-benzpyrene-5 : 10-quinone from Bz 1-a-naphthoylbenzanthrone, and 2 : Bz1-benzanthrone dicarboxylic anhydride from 4-benzoylnaphthalic anhydride, in each case with sodium and aluminium chlorides at temperatures of about 120‹ C., oxygen being blown into the mass. Specification 277,670 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of 4 : 5 : 8 : 9-dibenzpyrene-3 : 10-quinone from 2- benzoylbenzanthrone, and mentions the use of other oxidizing agents, such as pyrolusite, sodium nitrite, copper chloride or lead dioxide, in place of or in addition to the gaseous oxygen. This subject-matter does not appear in the Specification as accepted. 4-Chlor-1-benzoylnaphthalene is obtained from a-chlornaphthalene and benzoylchloride; with cuprous cyanide it reacts to give 4-cyan-1-benzoylnaphthalene, which on hydrolysis yield 1- benzoyl-4-naphthoic acid. 2-Benzoylbenzathrone is prepared from benzanthrone-2-carboxylic acid in the usual manner.
Patent GB-1136408-A (GB)
Title: Improvements in web processing machines, e.g., printing machines
Inventor: HALLEY ANGUS MURRAY
IPC: B41F13/32
Filed: 1965-05-13
Abstract: 1,136,408. Printing machines. JAMES, HALLEY & SONS. Ltd. 12 May, 1966 [13 May, 1965], No. 20187/65. Heading B6C. In a web-fed rotary printing or embossing machine having a printing or embossing cylinder 5 mounted on a wheeled sub frame unit 4 and a co-operating impression cylinder 31 both cylinders may be swung towards and away from each other through mounting the unit 4 of the cylinder 5 in a cradle 2 pivotable about and axis 6 whilst mounting the cylinder 31 line an cradle 3 pivotable about a shaft 26. The cradle 2 comprises two spaced arms each of which is connected to the main frame of the machine through an hydraulic power unit 8, 9. Movement, of this cradle into the non-engagement position is limited by slot and pin arrangements 22; 21 associated with each arm whilst cradle movement into the engagement position is limited, firstly through the engagement of an abutment 17 carried by each arm with the round surface 18 of a common shaft 19 and, secondly, through the engagement of the same abutments 17 with a flat 20 on the shaft. That first of these limits is cmployed when setting the machine up for web processing. The second becomes operative when processing commences. The arms of the cradle 3 carrying the impression cylinder 31 are pivotally attached to eccentrically mounted members 25 fast on the shaft 26, which is manually actuable in order to provide engagement of cylinders of diameters different from those shown. Screw-jacks 36 are used to pivot the cradle 3 about the shaft 26, any backlash being taken up by hydraulic units 42 also connected between the frame 1 and the cradlearms 23. Wedges 39 slidable by a handoperable screw -thread 40, are located between each screw-jack and the associated cylinder bearing block 33 for the purpose of aliging the impression cylinder in parallel relationship relative to the cylinder 5. The cylinders may be readily, released from their.. mountings.. The Specification refers to a multi-machine in which a plurality of the machines of Fig. 1 are aligned in operative association.
Patent GB-688652-A (GB)
Title: Improvements in or relating to refractory moulds for use in the manufacture of cast metal articles
Inventor: TAYLOR RONALD
IPC: B22C1/16
Filed: 1950-08-15
Abstract: 688,652. Mould materials; moulding processes; moulds. BIRMINGHAM SMALL ARMS CO., Ltd. Sept. 14, 1951 [Aug. 15, 1950], No. 20190/50. Class 83 (i). A mould, for precision casting, made by the " lost-wax " process, comprises water-based primary and secondary investments separated by a waterproof layer. This is applied to the primary investment, e.g. by dipping, spraying or painting, and may comprise synthetic resin. The primary investment may comprise a thin shell of zircon bonded with sodium silicate and water and the proofing layer a solution of phenolic-type resin with an accelerator, e.g. a commercial Novalak powder in methylethylketone. Curing of the resin layer may be accelerated by ultra-violet light or by dipping in a catalyst, e.g. ammonia for phenol-formaldehyde.
Patent GB-1426017-A (GB)
Title: Water treatment
IPC: C02F1/46
Filed: 1973-04-27
Abstract: 1426017 Electrolytic water treatment DISCOVERY (R & D) Ltd 12 July 1974 [27 April 1973] 20219/73 Heading C1C [Also in Division C7] An automatic electrolytic water-treatment apparatus (e.g. for chlorination of swimming- bath water, purification of drinking water, or sterilization of toilet waste) comprises two tanks 9, 10, the former containing a layer 23 of a salt (e.g. NaCl or CuSO 4 ) and the latter being connected via pump 18 and return line 19 with electrolytic cell 11 having, e.g. Pt, Pt-coated or Cu electrodes. (Alternatively cell 11 is immersed in tank 10). Water to be treated is supplied from line 14 to both tanks, and saturated saline solution from tank 9 is supplied to tank 10 by pump (or solenoid-operated cock) 16, the operation of which is controlled in dependence upon the current flowing through cell 11, e.g. by means of a relay 22 which energizes pump 16 when the current through cell 11 is small as a result of low salinity in tank 10, and de-energizes it when the current has risen to a predetermined limit as a result of increasing salinity in tank 10. Inlets 12 to tanks 9 and 10 may be controlled by ball cock valves 13, and excess liquid in tank 10 may be returned to tank 9 by overflow 17. Treated water leaves tank 10 by line 20. Fig. 1 shows the above apparatus serving as a bypass in the recirculation line 1 of a swimming pool 2, which line also includes filters 3, 5, pump 4 and heater 6 (e.g. boiler or solar heating cell). Tanks 9 and 10 may be replaced by a single divided tank.  Fig. 2 (not shown) has cell 11 immersed in tank 10. Fig. 3 (not shown) gives an alternative electrical control arrangement permitting, inter alia, periodic reversal of current direction in cell 11.
Patent GB-371233-A (GB)
Title: Hydraulic press
IPC: B30B15/04
Filed: 1931-07-14
Abstract: 371,233. Hydraulic presses. DEISTING & CO. GES., DR., Kierspe, Westphalia, Germany. July 14, 1931, No. 20244. Convention date, July 22, 1930. [Class 69 (ii).] The movable member d of a hydraulic press is adjustably provided with guide-bars e slidable in the cylinder block c and bedplate a. The bars e are also connected to a withdrawal ram and operate ejector mechanism i. The Specification as open to inspection under Sect. 91 (3) (a) states that the guide-bars may be slidable in either the cylinder block or bedplate. This subject-matter does not appear in the Specification as accepted.
Patent GB-1277719-A (GB)
Title: Improvements in or relating to television camera apparatus
Inventor: MAYER WALTER
IPC: H04N5/225
Filed: 1971-04-19
Abstract: 1277719 Optical apparatus GRUNDIG EMVELEKTRO-MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG 19 April 1971 [22 Jan 1970] 20254/71 Heading G2J A television camera 1 is arranged to be rotatable about its optical axis 2 by motor 3, and, disposed in the optical path of the camera, and rotatable therewith about the optical axis 2 is mirror 11, which mirror is also arranged to be pivoted about an axis perpendicular to the optical axis 2 by means of a further motor 12.
Patent GB-148396-A (GB)
Title: Improvements in railway and like route lever panels
IPC: B61L19/02
Filed: 1920-07-09
Abstract: 148,396. Ducousso, T. Jan. 4, 1919, [Convention date]. Hand levers and hand gearing; interlocking hand levers.-A panel of route levers has associated with each hand lever a pair of sliding bars provided with tappets; the bars can be moved in opposite directions to operate the rockers to their various positions for different route tracks. The frame 34 carries bearings 33 for a number of rockers 27 - - 30 which operate the points-controlling members. The combined bars 35, 36 work in guides on the frame 34, and are connected at their lower ends by pivoted links 44, 45, 51, the last-mentioned link 51 being supported at its centre by a pivot 52 on the frame. The top of the bar 35 is attached to the bell-crank lever 42 which is operated by the itinerary lever 43. Tappets 53, 54 on the bar 35 are arranged to operate the rockers 27, 30 as the bar rises and other tappets are arranged on the bar 36 to operate rockers as the bar falls. The rockers may actuate commutators, cocks, or slides according to the method of point operation. In Fig. 9, the rocker 27 is shown with one arm 14 engaged by the forked arm 15 of the pivoted lever 17 the other arm 16 of which engages a pin 20 on a crank 21 on the shaft 2 of the commutator switch 1. This switch has two sets of contacts which are brought into engagement with the fixed contact-brushes 8 - - 11 in the two positions of the rocker and so the electric motor is caused to make the desired point movement. The apparatus is constructed so that the commutator turns through the same angle as the rocker. Two sets of rockers mav be used with one pair of combiner bars, and bars corresponding to different routes may be spaced along the rockers at the positions 57, 58, &c., Fig. 3.
Patent GB-1456797-A (GB)
Title: Electric lamp
IPC: H01J5/38
Filed: 1975-05-14
Abstract: 1456797 Pinch seal PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 May 1975 [17 May 1974] 20341/75 Heading C1M [Also in Division H1] Lead-in wires 5, 12 to an electric incandescent or discharge lamp are of corrosion-resistant metal coated molybdenum which are ground bare at portions 8 prior to welding to molybdenum foils 4, 13 in a pinched seal 3, 11 at one end of a quartz glass envelope 1. As shown in Fig. 3, the wires 5 are also ground bare on the side opposite to the weld joint to prevent the welding electrode from sticking to the wire. The ground surfaces are flat. The corrosionresistant coating on the wires 5 may be of Ni, Pt, Pa, Au or Ir on a primer of Ni or Cu.
Patent GB-421790-A (GB)
Title: Improvements in or relating to cameras for colour photography
IPC: G02B27/14
Filed: 1933-11-13
Abstract: 421,790. Colour photography; optical systems. RECKMEIER, E., 112, Lindenstrasse, Berlin. Nov. 13, 1933, No. 20453/34. Convention date, Nov. 14, 1932. Divided out of 414,257. [Classes 97 (i) and 98 (ii)] A camera for colour photography with rigidly fixed plate or film frames and a device for the compensation of the image distortion produced by the light - distributing body between the various colour records is charac terized in that the com pensation is effected by slight artificial distortior of the originally non distorted side colour record, so that it becomes congruent with the rear colour record, by positioning the light distributing surface and /or the side frame out of their theoretically correct position and /or arranging a compensating disc, preferably wedge-shaped, tapering in the direction of the lens, between the side frame and the light distributing surface on the border of the picture area parallel to the side rays of light. As shown in Fig. 2, the light rays 2, 3, 4 pass through the lens 1 on to the light distributing mirror 5, one part passing to the plate or film in the rear frame 6, and the other part reflected to the plate or film in the side frame 7. The mirror 5 is displaced to a position 5' so that the side record is completely congruent with the rear record. The frame 7 may also be displaced to a position 7<1>. As shown in Fig. 3, a wedgeshaped glass disc 8 arranged parallel to the side rays is interposed between the mirror 5 and the frame 7.
Patent GB-1467677-A (GB)
Title: Passband filter having electronically adjustable midfre quency
IPC: H03H7/01
Filed: 1974-05-09
Abstract: 1467677 Bandpass filters INTERNATIONAL STANDARD ELECTRIC CORP 9 May 1974 [18 May 1973] 20564/74 Heading H1W A band-pass comb-line filter is electronically tunable over a large frequency range. The filter is of conventional mechanical construction, and comprises a hollow casing from one internal wall of which a number of strip conductors 1.1, 1.2 &c. extend towards the opposite wall. In addition, two end strips (not shown) connect the internal conductors of a pair of co-axial sockets to the said opposite wall and provide input/output impedance matching. The strips are approximately #/8 long at the centre frequency of the operating band and are capacitively loaded by varactor diodes 5.1, 5.2 &c., the reactance of which may be adjusted to vary the central frequency of the pass band over a frequency range which is many times greater than the width of the pass band. Additional capacitive loading is provided by capacitors 6.1, 6.2 &c. normally held fixed. A high bias voltage is applied to the varactors in order to obtain a low value of dC/dV with consequent stability. Each varactor may have its own bias supply, or a common supply V may be used, in which ease the capacitors 6.1, 6.2 &c. are adjusted to obtain equal changes #C in capacitance in each resonator. The operating range of the filter may be split into two adjacent bands each associated with different sets of values of the fixed capacitors 6.1, 6.2 &c. For this purpose, each varactor 25, Fig. 6, may be connected in parallel with a capacitor 26 or with the parallel combination of capacitors 26, 27, switching between the two circuits being effected by a PIN diode 28 controlled by a bias voltage V 2 . The Specification also describes a bias supply incorporating a switched potentiometer (Fig. 5, not shown) which enables the filter to be de-tuned and thereby provide a protection device for the mixer in a TR apparatus. The Specification gives a full account of the theory of the filter and gives criteria for the choice of the varactors.
Patent GB-1138825-A (GB)
Title: Elevator with a mobile platform for, for example, personnel
IPC: B66F11/04
Filed: 1966-05-10
Abstract: 1,138,825. Mobile luffing boom apparatus. CENTRALINE BIURO KONSTRUKCYJNE URZADZEN BUDOWLANYCH. 10 May, 1966 [10 May, 1965], No. 20569/66. Heading B8H. [Also in Division E1] A mobile platform for workmen is mounted on the topmost of three booms 3 which are pivotally interconnected and mutually angularly displaced by hydraulic piston and cylinder devices 4, the pistons being pivotally connected to gear-wheels 5, each pivotally mounted on one end of one of the booms 3 and meshing with a gear-wheel 6 fixed to the adjacent boom coaxially with one pivotal axis thereof. The platform is maintained in a constant alignment either by gearing comprising a fixed crown wheel 9 (Fig. 4, not shown) on the base, crown wheels 10 and 11 rotatably mounted on shafts 8, a further crown wheel 12 fixed to the platform, and interconnecting shafts 19 carrying bevel gear-wheels 13-18, the gear ratios of gearwheels 9 and 13, 10 and 14, 10 and 15, 11 and 16, 11 and 17 and 12 and 18 being equal, or alternatively by drums pivotally mounted on the shafts 8 and coupled together in pairs by ropes or chains 24 (Fig. 5, not shown), the top and bottom drum again being fixed to the platform and base respectively.
Patent GB-614958-A (GB)
Title: Improvements in or relating to fibre condensers for use in preparatory and spinning machines
IPC: D01H5/72
Filed: 1946-07-10
Abstract: 614,958. Condensing fibres. CASABLANCAS HIGH DRAFT CO., Ltd., and NOGUERA, J. July 10, 1946, No. 20621. [Class 120(i)] A fibre condenser for use in preparatory and spinning machines is formed in two parts, one of said parts, 1, being fixedly mounted on a traverse bar 4 of the machine and adapted to receive and laterally position the other part, 12, which rests freely thereon, the two parts being shaped. to provide, when assembled, a converging tunnel with the narrowed end very close to the nip of the following drawing members 6. The member 1 is provided with a flat bottom channel 2 and outwardly inclined and downwardly sloping sides 3, into which rests member 12 containing a deep slot 13, this slof converging towards the drawing members, at which end the leading surfaces 14 of the slotted member 12 are so tapered as to fit right into and bear against the nip of the belts 6. To thread the device, the member 12 is removed.
Patent GB-365108-A (GB)
Title: Improvements in or relating to cinematograph films
IPC: B44B3/04
Filed: 1930-07-08
Abstract: 365,108. Colour kinematography. SOC. FRANCAISE CINECHROMATIQUE (PROCEDES R. BERTHON), 24, Rue de la Pepiniere, Paris. July 8, 1930, No. 20671. Convention date, July 25, 1929; Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] An engraved cylinder for embossing lenticular elements on films for colour kinematography is produced by cutting on the surface of the cylinder a screw-thread of a pitch not greater than 0À04 mm., and rounding off the bottom of the groove by rotating the cylinder in contact with a wire coated with an abrasive such as rouge and stretched on a bow. The cylinder may be of steel or glass, and the screwcutting tool of steel or diamond. with a blunt profile. The wire is of about 0À08 mm. diameter. The bow may be held in the hand or on a, lathe, and may carry several parallel wires. The point of the wire which engages the groove is changed as the work proceeds to avoid irregularities due to the wearing away of the wire.