baber/WOPTO huggingface dataset:
Patent GB-1215251-A (GB)
Title: Improvements in or relating to process controllers
Inventor: HOGAN JAMES ANDREW
IPC: G05B11/42
Filed: 1969-02-03
Abstract: 1,215,251. Automatic control. HONEYWELL Inc. Feb.3, 1969 [Feb.9, 1968], No.5737/69. Heading G3R. In a closed-loop process control system, D.C. signals of the same polarity, corresponding in magnitude to actual and desired values of a process variable, are applied to a differential amplifier the output of which is applied through a main amplifier to control the process, relatively rapid changes of the process variable being applied through a separate amplifier to the main amplifier. In Fig.1, direct voltage signals which do not reverse in polarity, corresponding to the magnitude of actual and desired values of a process variable, are respectively applied to input terminals 12, 14 of a stabilized differential transistor amplifier 24 the output of which is applied through a high gain, high impedance modulator-amplifier 52 to operate a process controller 56 which maintains the variable at the desired value. A resistance-capacity feedback network 70 associated with amplifier 52 introduces integral and differential components of control. Feedforward of the actual value signal through a transistor amplifier 44 and a capacity 46 ensures that sudden changes of the process variable produce an additional immediate correcting effect at the input of amplifier 52. If a switch 154 is moved to the other position shown, an additional correcting effect as also produced upon sudden change of the desired value. Changeover switches (not shown) are associated with amplifiers 24, 44 so that the sense of control relative to the sense of error may be selected to ensure correction of the error. Control signals greater that a predetermined value render a transistor circuit 164 operative so that the control signals are limited by feedback to the input of amplifier 52 and by back to back rectifiers 166, without the charge on integration condenser 72 increasing or decreasing unduly.
Patent GB-608463-A (GB)
Title: Improvements in and relating to automatic looms
IPC: D03D45/20
Filed: 1946-02-25
Abstract: 608,463. Looms. COURTAULDS, Ltd., and THOMPSON, G. Feb. 25, 1946, No. 5772. [Classes 142(i) and 142(iii)] In a loom having a two-cell rotary shuttle box, automatic shuttle or pirn changing occurs when the exhausted shuttle is in its idle position. The transfer mechanism is duplicated, the cell 11 being replenished at front centre and the cell 12 at rear centre. The cells of the shuttle box are formed by slots in a cylindrical structure 6 rotatable on a fixed member 17 which closes the bottom of the working cell but is recessed to permit ejection of the spent shuttle or pirn through the bottom of the idle cell. The structure 6 pivots on stub shafts 18, 20, and is operated by linkage 14; the cells are located by a member 33 (loaded by springs 34) engaging the flat edges of a quadrant 32. The shuttles are located in the cells by spring-loaded balls 13 engaging the usual grooves in the sides of the shuttles. A quadrant plate 35, slotted to allow the picking stick 7 to pass through it, acts as a stop for the picker 8. A stop motion lever 28 is operated by swells 31 through levers 30 and a roller 29 to stop the loom if a shuttle fails to box. U.S.A. Specification 2,373,943 is referred to.
Patent GB-164094-A (GB)
Title: A new or improved scale
IPC: G01B3/18
Filed: 1920-02-26
Abstract: 164,094. Wilkinson, J. E. Feb. 26, 1920. Measures of length.-An instrument showing small fractions of length, for use in setting callipers, dividers, &c., comprises a graduated plate or beam a, Figs. 3 and 4, and a graduated rotatable disc b mounted against a machined flange a<1> extending at right-angles to the beam at one end, the face of the beam tangential to the disc. The graduations on the beam may be in fortieths of an inch, and the disc may be divided circumferentially into twenty-five equal parts. The disc is also graduated in an axial direction, the smallest being preferably one fortieth of an inch to complete the first inch measurement on the beam, while the others increase by a thousandth of an inch. The disc is rotated by means of a milled part b<1>, and its spindle is provided with lugs c<1> engaging grooves in a bearing d<1> to prevent rotation. The beam may have a leg of the same length as the flange a<1> at the opposite end to .support it on a table. In another arrangement, Figs. 6 and 7, a graduated plate a is mounted on a support g, and an end piece a<3> bearing a graduation-mark to complete the unit on the plate a is adjustable longitudinally by a screw i of the same pitch as the graduations, rotated by a divided head b. The piece a<3> is attached to a part h slidable in a dovetailed plate g<1>, and an adjustable abutment m is provided for preventing endwise movement of the screw i after its position has been determined. A pin n on the screw abuts against a stop o on the support to prevent strain when the adjustable piece a<3> is in contact with the main plate.
Patent GB-688840-A (GB)
Title: Improvements in or relating to film television apparatus
Inventor: SARSON ALAN ELMER
IPC: H04N3/40
Filed: 1950-03-07
Abstract: 688,840. Automatic phase control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 9, 1951 [March 7, 1950], No. 5789/50. Class 38 (iv). [Also in Group XL (b)] In television transmitting apparatus in which, during interlaced scanning of an intermittentlymoving film, signals lost due to the time of film-advance exceeding the fly-back time of the scanning spot are replaced by signals stored in a delay device from a preceding scan (see Group XL (b)), the delay device in the form of a supersonic line is used as the frequencycontrolling element in an automatic frequency control system in order to ensure that the delay time is exactly related to the frame period. Master oscillator 28, Fig. 5, produces wave f, Fig. 6, which is squared (g), differentiated (h) and divided at 32 giving two squared outputs j, k of half-frequency and in antiphase. Waves j, k passing through delay circuits 35, 33 and limiters 36, 34 produce pulse trains m, n. The video signals obtained from scanning the film are combined with wave n and the resultant wave o is modulated on a carrier 39 (p), delayed one frame period by supersonic delay line 40 (q), and demodulated at 41 (r) giving the delayed signal for substitution on lead 41L. The output r, arranged by close adjustment of the length of delay line 40 to have its line-pulse portions in exact 'time coincidence with the pulses of wave m, is also fed, after limiting (s) to remove the video frequency, to a phase discriminator 43 where it is compared with wave m, any difference of phase producing an output from the discriminator which acts on a reactor 45 to control the frequency of the master oscillator.
Patent GB-577100-A (GB)
Title: Improvements in combinations of hpmv electric discharge devices with means for operating them
IPC: H01J61/10
Filed: 1941-05-05
Abstract: 577,100. Metallic - vapour lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and KETTLEWELL, E. May 5, 1941, No. 5836. [Class 39 (i)] A magnetic field is provided in the neighbourhood of the discharge column of a spherical high-pressure metallic-vapour lamp which, while it does not materially affect the distance between the column and theenvelope, prevents the " flame " of hot gas arising from the column from impinging continuously on a single small portion of the envelope. The direction of the field is not critical and may be variable during operation ; it need not have a considerable vertical component, though this component should be directed downwards. The phase difference between the field and the discharge current may be variable, when the flame wanders over the surface of the envelope, or fixed, when it is preferably split up into several portions. These two cases are achieved when a direct discharge current is subjected to alternating and constant magnetic fields respectively. If the column is disposed in a parabolic reflector perpendicular to its axis, the field may be produced by permanent bar magnet placed along the axis on the side remote from the reflector. The magnet may be tubular and serve to carry a cooling blast of air. Specific dimensions and working conditions of such a construction are given in an example.'
Patent GB-784241-A (GB)
Title: Telephone sterilisation device
IPC: H04M1/17
Filed: 1955-02-28
Abstract: Antiseptic compositions in which the discs of absorbent base material used for disinfecting telephones (see Group XXXIX) are immersed comprise parachlormetacresol, volatile aromatic essential oil, methylated spirit or parachlormetacresol, paraformaldehyde, volatile aromatic essential oil, methylated spirit and an antispetic known under the Registered Trade Mark "Cresantol," or thymol, parachlormetacresol, titree oil and alcohol.
Patent GB-1033694-A (GB)
Title: Cyclic-hexahydro-o-xylylene derivatives
IPC: C07D319/06
Filed: 1964-02-12
Abstract: The invention comprises 1-chloromethyl-2-(b ,b ,b  - trichloroethyl) - cyclohexane and a -(2-chloromethylcyclohexyl) - acetic acid. Cyclic hexahydro-o-xylylene derivatives represented by the general formula: <FORM:1033694/C2/1> wherein the saturated hydrocarbon ring may be substituted by one or more inert substituents, are made by contacting a 1,7-octadiene in the liquid phase in the presence of a free radical initiator at a temperature in the range from 0 DEG  to 200 DEG  C. with an organic free radical addend compound AB which is dissociatable into free radicals .A and .B, said compound AB having a chain transfer constant as measured in 1-octene at 100 DEG  C. in the range of from 0.01 to 10.  Suitable addend compounds are polyhaloalkanes, arylpolyhaloalkanes, alkanals, arylalkanals, primary and secondary alkanols or arylalkanols, alkylamines, arylalkylamines, alkanoic acids, arylalkanoic acids, a -halogenoalkylcarboxylic acids as well as the acylhalides, anhydrides, lower alkyl esters and amides of the indicated carboxylic acids, 2-halogenoalkanenitriles, and alkyl ethers and aralkyl ethers both cyclic and acyclic.
Patent GB-139232-A (GB)
Title: Process for the manufacture and production of cellulose acetates
IPC: C08B3/06
Filed: 1918-04-08
Abstract: Cellulose acetate is formed by adding a halogen such as chlorine or bromine, or a compound which yields a halogen such as chloride of bromine, to a mixture of cellulose, acetic acid, and acetic anhydride.  A halogen-acetic acid is formed and acts in its nascent state as a condensing-agent.  When the action is completed (after about two hours at 70 DEG  C.), further esterification is brought about by the addition of a strong acid such as sulphuric or chlorsulphonic acid.  The solution may be used for directly making films, artificial silk, horsehair, &c., or the ester may be precipitated.  The halogen has also a hydrolyzing action upon the cellulose, and this action may be varied by varying the temperature (up to 80 DEG  C.), the amount of halogen, or the length of time of the action.  A further hydrolysis may be effected by adding dilute acetic or other acid, formaldehyde, or hydrogen peroxide.  Esters are obtained which yield solutions of low viscosity in acetone, chloroform, or in mixtures of acetone and alcohol, or of acetone, alcohol, and benzol.  Specifications 14255/06 and 22237/11 are referred to.
Patent GB-106458-A (GB)
Title: Improvements in Toothed Gear Wheels.
IPC: F16H55/14
Filed: 1917-04-27
Abstract: 106,458. Soc. d'Exploitation des Appareils Rateau. April 27, 1917. Toothed wheels.-Helical and spur toothed wheels are built up of a number of laminated parts held in position on their shaft d by nuts f, g, the rims a being connected to the hubs b by spokes c relatively broad in the axial direction and thin in the circumferential direction, so as to permit of rotary elasticity in separate laminations. The spokes may be cut from the solid wheel or may be separately constructed, the parts being subsequently assembled.
Patent GB-722678-A (GB)
Title: Inventory assembly
IPC: B42D15/00
Filed: 1953-03-04
Abstract: 722,678. Book-keeping ; mercantile forms. CADENA, R. M. G., and CADENA, F. J. G. March 4, 1953 [March 17, 1952], No. 6038/53. Class 16. For checking entries of inventory counts against one another, an inventory assembly comprises a single integral record sheet which includes a plurality of lengthwise columns and a plurality of scores in spaced parallel relation so that the sheet is foldable lengthwise along the scores, and staples securing the folded portions of the sheet together. The record sheet 10 has a heading 11, appropriately printed, below which the sheet has horizontal lines 20 and a series of columns, those on the left relating to the parts to be counted, followed by spaces for second count and first count. To the right follow columns 62, 60, 58 headed " shortage," "checked" and " surplus," then cost columns, and card index columns, which last columns are intended to be typed with the stock records taken from a card index, as shown in Fig. 1. The sheet 10 is provided with score lines 54, 56 and 64 and initially the sheet 10 is folded along the score lines 54, 56 so as to cover up the card index figures and the folded columns are stapled together at 84 to cover up the figures nearly up to score line 64. The first count is then made and entered in columns 65, 66. The sheet is then folded on line 64, as in Fig. 3, to cover up the first count and stapled at 85 while the second count is made and entered in columns 70, 71. The staples 84, 85 are then removed and the figures compared and appropriate shortages and surpluses inserted in columns 62, 58.
Patent GB-189039-A (GB)
Title: Improvements in grain loaders
IPC: A01D87/10
Filed: 1922-03-01
Abstract: 189,039. Tully, W., and Wilde, O. March 1, 1922. Pneumatic elevators; worm conveyers.-Portable apparatus for transferring grain from a wagon 45 to freight-car or a granary 47 comprises a feeding device such as a worm conveyer 33, a blower 17, and a power unit 10, all mounted on a wheeled frame 1. The conveyer is mounted on the front end of the frame 1 so as to be capable of turning aside on a guide rail 42 on the frame, to allow the full wagon 45 to come into position for unloading at the rear without backing. In this turning movement of the conveyer, a slotted guide 36 on the conveyer trough moves over a fixed pin on the frame 1, and the pinion 43 on the conveyer shaft moves away from the driving position 44. The conveyer is provided with a feed-hopper 32 and delivers to a side inlet in the blower casing. The blower is driven by a belt 23, and the conveyer is driven from a countershaft 24 provided with fast and loose pulleys.
Patent GB-734541-A (GB)
Title: Improvements in dartboard backboards
IPC: F41J3/00
Filed: 1953-03-05
Abstract: 734,541. Dartboards &c. WRIGHT, M., [Representative of WRIGHT, W.]. March 12, 1954 [March 5, 1953 ; June 25, 1953], Nos. 6099/53 and 17585/53. Class 132(3). A backing member 1 of a dartboard backboard device has a wooden cylinder 6 secured to it on which a plywood or compressed paper disc 4 of a diameter substantially greater than that of a standard dartboard is rotatably mounted. A metal plate 7 screwed to the cylinder 6 has a slot 8 to receive the projecting head of a screw located in the centre of the dartboard and carries four arms 9 adapted to support a dartboard numeral ring. The disc 4 is reversible and replaceable and both disc and dartboard may be individually rotated to equalise wear over their surfaces. The cylinder may be extended beyond the front surface of the disc and engage a blind hole drilled in the back of the dartboard. The numeral ring may be supported by arms extending radially inwardly from the backing member. Alternatively a dartboard having a numeral ring'secured to it may be employed,
Patent GB-886680-A (GB)
Title: Improvements relating to control mechanism in tractors for hitched implements
IPC: A01B63/10
Filed: 1958-04-21
Abstract: 886,680. Tractor power-lifts. MASSEYFERGUSON Inc. April 21, 1958 [May 6, 1957], No. 6100/61. Divided out of 886,677. Class 79(1). In a tractor power-lift system according to the divided Specification 886,677 the linkage system is adapted for the attachment of a self supported earth-working means 217, Fig. 1. The normal power-lift to arm 77 is disabled by a spring 231 and an auxiliary hydraulic actuator 221 is coupled to the power-lift hydraulic system through pipes 226, 227 and operates to raise and lower the implement support wheel 218. The implement frame 216 is coupled to the draft control frame 22 by a single hook-and-eye joint 216A. The operations of position control and draft control are similar to that described for the normal power-lift system. Specifications 886,678 and 886,679 also are referred to.
Patent GB-231649-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/38
Filed: 1924-03-10
Abstract: 231,649. Taylor, C. I. March 10, 1924. Condensers. - In a variable condenser the fixed and moving vanes are mounted in a manner which permits of any number of them being readily removed and replaced to vary the maximum capacity. The condenser comprises insulating end pieces a, b united by posts c, the latter being provided with spaced notches in which the fixed vanes d, Fig. 4, are slidably engaged. The vanes d are normally retained in position by a notched bar g pivoted at f to permit removal of vanes when required but normally held in engagement with the vanes by a spring catch h. The moving vanes m, Fig. 5, slotted at n to engage parallel flats on the spindle j, are spaced apart by washers and are clamped in position against a collar p by a nut q. According to the Provisional Specification, a slidable collar having a set screw may be employed for clamping the moving vanes on the spindle.
Patent GB-1121971-A (GB)
Title: Systems for controlling air supply temperature to a vehicle passenger compartment
IPC: G05D23/185
Filed: 1967-02-09
Abstract: 1,121,971. Ventilating vehicles. GENERAL MOTORS CORP. 9 Feb., 1967 [25 Feb., 1966], No. 6147/67. Heading F4V. [Also in Division G3] A valve 26 controlling the supply of warm and cold air through ports 24, 22 to a vehicle interior is coupled by link 36 to a vacuum servomotor 29 connected via annular space 76 of control unit 44 to the intake manifold of the vehicle engine, the control unit having a perforated bi-metal disc 66 carrying a closure member 64 which permitsleakage of air from the vehicle interior 'via filter 58 to space 76 to control the degree of vacuum in the servomotor and thus the position of valve 26. The disc responds to the temperature of the vehicle interior to control the mixture of warm and cold air. A manually adjustable control knob 70 allows variation of the set point temperature.
Patent GB-315237-A (GB)
Title: Improvements in and connected with travelling cranes
IPC: B66C9/08
Filed: 1928-11-28
Abstract: 315,237. Babcock &. Wilcox, Ltd., and Fox, R. S. Nov. 28, 1928. Axle-trucks; axle-bearing guiding-arrangements. - To permit levelling of travelling cranes running on uneven or inclined tracks by adjusting the wheels in the undercarriage, the ends of the axles 2 are guided in slots in the side girders 6 of the undercarriage, the axles being carried by fork members engaged by adjusting-screws. As shown in Fig. 2, each wheel 1 is mounted in a fork 3 sliding in guides 4 in the frame member 5 and the position of the wheel may be adjusted by a screw 7. In another form, Fig. 3, the wheel 1 is carried by a lever 12 pivoted on the frame at 11 and adjusted by a screw 14. The fork members may be adjusted simultaneously by a single screw.
Patent GB-434027-A (GB)
Title: Manufacture of new dyestuffs of the pyrene series
IPC: C09B3/56
Filed: 1934-02-26
Abstract: Coloured pyrene quinone derivatives are obtained by causing 2 : 5 : 7 : 10-tetrachlorpyrene-3 : 8 quinone (obtainable by the process of Specification 414,230) to react with ammonia, a primary aliphatic, or a primary or secondary aromatic amine, advantageously in presence of an organic solvent.  One or more chlorine atoms may be replaced, singly or in turn, until they are wholly replaced by amino groups. The products obtainable may have the following structures <FORM:0434027/IV/1> in which the R's represent the amino or substituted amino residues corresponding to the amine used.  The halogen atoms in periposition to the CO groups react most readily. Most of the products are dyes for cotton, and some may be converted into leuco-sulphuric esters and used according to known methods. According to examples, tetrachloropyrenequinone is heated with aniline, p-toluidine, b -naphthylamine, p-aminodiphenyl, a -aminoanthraquinone, anthranilic acid or ethyl ester, aminosalicylic acid, ammonia, methylamine, and ethylamine to give the corresponding substituted mono - amino - trichloropyrenequinones; substituted diamino-dichloropyrenequinones corresponding to ammonia, aniline, p - anisidine, a  and b  - naphthylamine are obtained with the use of further quantities of the amines, and condensing agents, and a tetra-anilinopyrenequinone may be obtained with aniline.  Samples have been furnished under Sect. 2 (5) of products obtained by condensing (I) tetrachloropyrenequinone with m-chloraniline to give a di-m-chloranilinopyrenequinone; (II) p - diphenylaminotrichloropyrenequinone with aniline to give a p-phenylamino-anilino-dichloropyrenequinone; (III) dichlordianilinopyrenequinone with a -amino-anthraquinone; (IV) tetrachloropyrenequinone with N-methylaniline; (V) mono - N - methylanilinotrichloropyrenequinone with N-methylaniline to give a di-N-methylaninodichloropyrenequinone.  The Specification as open to inspection under Sect. 91 refers also to the condensation with secondary aliphatic amines.  This subject-matter does not appear in the Specification as accepted.
Patent GB-477124-A (GB)
Title: Improvements in and connected with drain covers for road gullies and like purposes
IPC: E03F5/046
Filed: 1937-03-02
Abstract: 477,124. Gully covers and gratings. WOODROW, W. J., WOODROW, J. W., WOODROW, W. J., and WOODROW, A. C., (trading as WOODROW & CO., A. C.). March 2, 1937, No. 6218. [Class 107] [Also in Group XXV] A drain cover for road gullies comprises a box-like frame 1 having an open front wall, and a lid 5a from which depends a grating, the lid being provided with projections 11 which co-operate with recesses 12 of inverted-L-shape which are formed in the frame. The projections which provide a pivotal support for the lid normally rest in the vertical limbs of the recesses and are given sufficient play to enable the lid to be swung to locate them in the horizontal limbs. When the lid is swung into this position it can be removed from the frame by sliding the projections out of the horizontal limbs of the recesses. The projections may be of D-section and the corners of the recesses may be rounded. The grating shown consists of a number of depending members 8 which are strengthened by webs 9. The lid may be locked in the closed position by means of a turn-button adapted to engage beneath the rear wall of the frame. Specification 380,292 is referred to.