baber/WOPTO huggingface dataset:
Patent GB-501338-A (GB)
Title: Valve seat grinding means
IPC: B66D5/26
Filed: 1937-07-22
Abstract: 501,338. Grinding valve seatings. HALL MANUFACTURING CO. July 22, 1937, No. 20309. Convention date, Oct. 14, 1936. [Class 60] Apparatus for grinding single valve seatings, or for grinding simultaneously several seatings in an engine block, comprises for each seating, a spindle A made in two parts 6, 7, the upper part 6 having a disconnectible driving gear 11 thereon and having an eccentric lower part 6a bored at 15 concentrically with the part 6. In the bore 15 is screwed a plug 16 carrying a coupling member 17 having a sleeve portion 19, within which is a ring 20 with a spherical seating to receive a half-spherical block 21. The lower flat face of the block 21 is engaged slidably by a flat plate 28 having a central slot fitting over the flattened end of a stem 24, which is screwed to engage a nut 23 rotatable in a bore in the lower shaft section 7, the bore being concentric with the bore 15 ; the stem 24 also engages a link 25 attached to a plunger 26 engaging a spring 27, whereby the shaft sections 6, 7 are pressed together axially. The section 6 drives the section 7 by means of a pin 35 and an Oldham joint plate 38, which engages the member 17 and a member 41 on the section 7 ; the section 7 may thus be inclined to, and have its axis displaced laterally with respect to the section 6. The grinding-wheel 5 is carried by a sleeve 9 mounted on ball bearings 45 on the section 7 and driven from a sleeve 8 mounted on ball bearings 45 on the shaft section 6 and driven by a spur pinion 70. The part 8 has a flange 53 and the part 9 has a flange 54, the flange 53 carrying pins 55 connected to pins 56 on the flange 54 by springs 57 Fig. 2, so that the drive may be through the springs, or, when a heavy resistance is encountered, the drive may be through pins 60, in the flange 53, which engage the sides of holes 61 in the flange 54. In operation, the bore 22 of shaft section 7 fits over a pilot stem 4 placed in the valve stem guide 3, and the shaft 6, 7 is rotated at slow speed, whilst the grinder 5 is rotated at high speed, the grinder thus moving slowly round the valve seating ; the device may be employed with the grinder concentric with the seating, when the spindle 6, 7 will not be rofated.
Patent GB-1490664-A (GB)
Title: Charge transfer devices
IPC: G11C27/04
Filed: 1975-05-14
Abstract: 1490664 Semi-conductor logic WESTERN ELECTRIC CO Inc 14 May 1975 [16 May 1974] 20338/75 Heading H3T [Also in Division H1] The invention concerns a charge transfer device for performing a logic function in response to m of n (m # n) input signals applied thereto, and in particular which permits a variety of logic functions to be integrated on a common CCD wafer. Fig. 2 shows the generalized form of the device, wherein n inputs X 1 -X n  are supplied to respective first sub-calls (phased 91 as illustrated) of n one-bit CCD shift registers, each register also comprising a second sub-cell (phased # 2  as shown) for receiving charge from the corresponding first sub-cell. A common logic cell (phased # 3  as shown) receives charge from all of the shift registers, and an output cell (phased # 1  as shown) receives charge from the logic cell. "Transfer barriers" of height V B  are present between first and second sub-cells of each register and between each second sub-cell and the logic cell, and between the logic cell and the output cell is a "threshold barrier" of height V T , where The transfer and threshold barriers, as well as "chanstop" barriers isolating adjacent shift registers, are preferably formed by elongate diffused or implanted zones. The area of each of the logic and output cells is greater than that of each of the sub-cells comprising the shift registers, preferably by a factor n. The output z appears only if input signals are presented to m of the n inputs. Two-phase operation is also possible, with the first sub-cells and the logic cell receiving # 1 , and the second sub-cells and the output cell receiving # 2 . Fig. 1 shows the particular example of a 2- input AND gate comprising, in a P- semiconductor substrate, N+ input diode diffusions 16.1, 16.2 feeding into respective CCD shift registers comprising first and second sub-cells 18.1, 18.2 and 20.1, 20.2, respectively, common electrodes 17 and 19 being provided for the pairs of first and second sub-cells respectively. The electrode 19 has an extension 19.1 which provides access from the logic CCD cell 22 to a "dump gate" CCD cell 28, the function of which is to remove any charge left in the logic cell at the end of one logic cycle and before the start of the next. The output CCD cell 24 provides access to an output diode constituted by N+ diffused zone 26. A circular configuration 4-input AND gate is also disclosed (Fig. 3, not shown).
Patent GB-909249-A (GB)
Title: Hydraulic power transmission apparatus
Inventor: LEE NORMAN
IPC: B65H23/06
Filed: 1960-06-09
Abstract: 909,249. Winding webs. KEELAVITE CO. Ltd. May 31, 1961 [June 9, 1960], No. 20374/60. Class 100 (1). [Also in Group XXIX] In an hydraulic power transmission system comprising a variable-displacement pump 1 supplying a motor 6 driving a coiling drum 8 for a web 9 small adjustments to the torque output of the motor to maintain constant tension in the web are effected by a valve 16 actuated by a jockey pull 11 and arranged to connect the inlet 5 and exhaust 7 of the motor to the delivery and exhaust conduits 17a, 21 respectively of an auxiliary pressure source to increase the torque and to make reverse connections to reduce the torque. Large deflections of the valve 16, giving rise to large flows in conduits 13, 14 provided with restrictions 51, 52, cause deflection of a diaphragm assembly 49, 50 to operate one of a pair of electric switches 46, 47 to cause operation of a solenoid-actuated valve 34 in such direction as to cause movement of a servo piston 28 in a direction to adjust the displacement of the pump 1 to change the torque of the motor 6 such that the valve 16 is returned to neutral position. The switches 46, 47 have holding magnets 53 to provide snap action. In a modification, a flow-responsive meter driving an electric generator to energize a solenoid-actuated switch in response to flow in either direction in the conduit 14 takes the place of the restrictions 51, 52, diaphragms 49, 50 &c. Which of the two solenoids 39, 40 is energized is selected by a further switch in accordance with the direction of displacement of the valve 16. In a further modification, means for measuring flow in the conduits 13, 14 are dispensed with and the valve 34 is actuated in accordance with the magnitude and sense of an error between a speed signal from an electric generator driven by the motor 6 and a signal from a rheostat connected to the displacement adjusting means of the pump 1. Instead of the jockey roller acting directly on the valve 16 it may act through a strain gauge &c. and an electric amplifier.
Patent GB-1211186-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: H04L5/20
Filed: 1969-04-22
Abstract: 1,211,186. Digital transmission systems; time delay compensation. SIEMENS A.G. 22 April, 1969 [23 April, 1968], No. 20386/69. Headings H4P and H4R. The words in a group of n fixed-length words in a serial word message are each accompanied by a marker signal characterizing the group and are transmitted simultaneously over n respective channels. Successive groups have different group marker signals in a cyclic sequence of markers, the number of different markers in the sequence being greater than the number of words that can be transmitted on any one channel during a time equal to the maximum difference in the word transit times on different channels. As described, to the words a, b, c, d . . . forming a data message to be transmitted are added channel marker signals indicating on which channel the word is to be sent. In the ease of n = 3 lines the message becomes al, b2, c3, d1. . . . The words are distributed to the three channels and the channel markers are inspected to confirm that each word is on the required channel and are then removed. Group marker signals are now added so that the first three simultaneous words forming the first group are a1, b1, c1, the second group consists of d2, e2, f2 &c. At the receiver the words are reassembled in their correct groups and the group markers removed. Position markers are now added, indicating the position that each word in the group is to take in the receiver output message. Thus the words in the groups are a1, b2, c3, d1 ... and these are serialized. After checking the position markers to ensure that the words are in the correct serial order the markers are removed and the serial message a, b, c, d . . . passed to the receiver output.
Patent GB-1574115-A (GB)
Title: Optical fibre manufacture
IPC: C03B37/018
Filed: 1978-05-18
Abstract: In order to produce an optical waveguide (46) having a gradient profile of the refractive index from a preform (43), glass material is precipitated continuously from a chemical vapour-phase reaction, first on a rotating baseplate and subsequently on the front face of the preform (43) being formed, where the precipitation is carried out by a burner nozzle (jet, head) (40), through which the reactants are fed in gas form. The feeding of the reactants and the movement of the nozzle transversely to the rotating front face of the preform are controlled in such a way that the desired gradient profile of the refractive index is obtained. The front face is kept at a constant distance from the burner by moving the preform away depending on the deposition rate of the glass material onto the front face. The end of the preform opposite to the front face is re-heated during this operation in order to draw the optical waveguide (46) from this end; the process thus involves continuous production of the waveguide. <IMAGE>
Patent GB-587986-A (GB)
Title: Improvements in or relating to continuous business stationery consisting of invoices and other business forms
IPC: B42D15/00
Filed: 1944-10-23
Abstract: 587,986. Business stationery. YOUNG, A. Oct. 23, 1944, Nos. 20486 and 25498. Drawings to Specification. [Class 16] In business stationery of the kind in which invoices or similar forms are produced in a continuous series by repetitive printing on a paper band of considerable length, the title or non- variable parts are disposed in a continuous series either on the margin or on the reverse side to that reserved for the data section where particulars of transactions &c. are to be entered, so as to leave a continuous strip for the data section. Consequently, the length of paper used for each form can correspond to the number of entries made thereon subject to such length being not less than the length of one title section, thus resulting in a saving of paper. To facilitate separating typed forms, transverse lines of perforations are provided, one line at least to each title section. Where the title sections are on the reverse side of the paper, they may include subtitles corresponding to and in alignment with the data to be entered. In this event, the title sections are printed upside down, so that by folding over the top or bottom edge of a completed form, the sub-titles are visible and situated vertically above or below the corresponding data. The stationery may have title sections both on the margins and on the reverse face. Where copies are required, a number of stationery bands are superposed with carbon bands interposed between them. If the title sections are along the margins, the width of the carbon bands can be limited to the width of the data section.
Patent GB-723778-A (GB)
Title: Hydrolysis of steroid epoxides
IPC: C07J53/00
Filed: 1951-08-30
Abstract: The invention comprises 3,9,11-triacyloxy-5,7-pregnadien-20-one adducts of the formula <FORM:0723778/IV (b)/1> wherein Ac is an acyl group which is the residue of an unsubstituted monocarboxylic organic acid containing from one to eight carbon atoms, inclusive, wherein Acy is an acyl group which is the residue of a lower-aliphatic organic acid containing from one to eight carbon atoms inclusive, and wherein A is an adduct radical of maleic acid, maleic anhydride or a maleic acid diester containing from one to eight carbon atoms inclusive in the esterifying groups, and the preparation thereof by mixing together, at a temperature between about - 50 DEG  and + 50 DEG  C., a 3-substituted-9,11-oxido-5,7-pregnadiene-20-one adduct of the formula <FORM:0723778/IV (b)/2> wherein Ac is hydrogen or an acyl group which is the residue of an organic carboxylic acid containing from one to eight carbon atoms inclusive, with an excess of a lower aliphatic acid anhydride containing not more than sixteen carbon atoms in the presence of a catalytic amount of stannic chloride. Examples disclose the preparation of 3,9,11 - triacetoxy - 5,7 - pregnadiene - 20 - one, 3 - benzoyloxy - 9,11 - di - acetoxy - 5,7 - pregnadiene - 20 - one, 3 - heptanoyloxy - 9,11 - diacetoxy - 5,7 - pregnadiene - 20 - one and 3 - acetoxy - 9,11 - dipropionoxy - 5,7 - pregnadiene maleic anhydride adducts and 2,9,11 - triacetoxy - 5,7 - pregna - diene - 20 - one dimethyl maleate adduct, 3 - acetoxy - 9,11 - dibutyroxy - 5,7 - pregnadiene - 20 - one, 3 - benzoyloxy - 9,11 - dipropionoxy - 5,7 - pregnadiene - 20 - one, and 3 - propionoxy - 9,11 - diacetoxy - 5,7 - pregnadien - 20 - one maleic anhydride, maleic acid and maleic acid diester adducts are mentioned. Specifications 580,734, [Group III], 680,733 and 693,770 are referred to.  Dimethyl maleate adduct of 3b  - acetoxy - 5,7,9(11) - prengatriene - 20 - one is obtained by treating 3b -acetoxy-5,7,9(11)-pregnatriene-20-one-maleic anhydride adduct with diazomethanemethylene chloride solution.  3 - Hydroxy - or 3 - acyloxy - 9,11 - oxido - 5,7 - pregnadiene maleic anhydride, maleic acid and maleic acid diester adducts are obtained by oxidizing the corresponding 3-hydroxy- or 3-acyloxy - 5,7,9(11) - pregratriene - 20 - one adduct with an organic peracid or concentrated hydrogen peroxide.  Details are given of compounds containing up to eight carbon atoms per acyl group.
Patent GB-1305853-A (GB)
IPC: H01C10/14
Filed: 1971-04-19
Abstract: 1305853 Potentiometers VISHAY INTERTECHNOLOGY Inc 19 April 1971 [2 Feb 1970 18 Sept 1970] 20548/71 Heading HIS A potentiometer comprises an arcuate resistance element disposed on an insulating mounting 11 attached to a base member 38. The resistance element is engaged by a wiper arm 52 attached to a metal plate 42 which is freely pivoted on the fixed conducting shaft 39. Projections 44 on the metal plate engage recesses 46 in the surface of a gear-wheel 47 freely mounted on the shaft and driven by means of a worm gear mechanism operated by rotation of the nut 65. The metal plate and gear-wheel are resiliently held in engagement by a bowed circular spring 54 which also acts as an electrical contact member between the wiper 52 and the shaft 39, the shaft being electrically connected to output terminal 20. The arrangement is such that when a stop on the metal plate 42 engages a fixed stop 34 on the base 38, further rotation of the screw 65 results in the disengagement of the metal plate from the driving member allowing the driving member and worm gear to rotate freely without further movement of the wiper. The worm gear may have a section of reduced cross-section in the portion which lies within the component casing around which a split retaining ring is situated, the diameter of the retaining ring being normally greater than that of the worm gear (Fig. 4, not shown). In addition the worm gear may be mounted with its axis parallel to the axis of the shaft (Fig. 6, not shown) and not normally to this axis as shown in Fig. 3.
Patent GB-1473672-A (GB)
Title: Cephalosporanic acid derivatives and the preparation thereof
IPC: C07C275/42
Filed: 1974-05-09
Abstract: 1473672 Cephalosporin derivatives FUJISAWA PHARMACEUTICAL CO Ltd 9 May 1974 [10 May 1973 6 July 1973 3 Dec 1973 10 Jan 1974 7 Feb 1974 8 Feb 1974 27 March 1974] 20637/74 Heading C2C Novel compounds I (in which R 1  is NO 2 , alkoxy, alkylsulphonamido, or alkylaminosulphonamido; R 2  is H or OH and must be OH if R 1  is NO 2  or alkoxy; R 3  is H or optionally alkylated heterocyclylthio provided R 3  is H if R 1  is alkoxy and R 2  is OH; X is amino or protected amino and M is H or a non-toxic cation) and their derivatives at the carboxyl group are prepared by reaction of a compound II  with a compound III or by reaction of a compound IV in which R 3 <SP>11</SP> is alkanoyl and R 1 <SP>1</SP> is as R 1  except that it may not be alkoxy, with a thiol R 3 <SP>1</SP>H in which R 3 <SP>1</SP> is heterocyclylthio. Pharmaceutical compositions having antibacterial properties comprise a compound I together with a suitable carrier or diluent.
Patent GB-1306625-A (GB)
Title: Apparatus for identifying a wire in a bundle of wires
IPC: G01R31/02
Filed: 1971-04-19
Abstract: 1306625 Selective signalling THOMAS & BETTS CORP 19 April 1971 [15 June 1970] 20692/71 Heading G4H Apparatus for identifying a wire in a bundle of wires comprises means for securing an electrode to the body of the user whereby current can be passed from the user's finger to one end of the wire to be identified, current from the other end causing display of a unique designation of the wire. One end of a bundle of wires is plugged into the apparatus and a voltage-fed wrist strap enables a voltage to be applied by the finger of the user to the free end of the wire to be identified. A manual mode switch (or buttons also provided) selects one of three modes. In the first mode, the identity of the wire to which a voltage is applied is encoded by a diode network and displayed on number-indicating tubes. In the second mode, it is displayed only if equal to the setting of manual wiper switches. In the third mode, the setting of the wiper switches is displayed. The wiper switches may be replaced by an electronic scanner, settable to a particular number and advanced up or down seeking and stopping at any wire with a voltage on it, under control of a foot switch.
Patent GB-207767-A (GB)
Title: Improved method of and means for making wind allowance in aiming weapons
IPC: F41G1/473
Filed: 1922-09-12
Abstract: 207,767. Harkom, J. W. Sept. 12, 1922. Sights.-A broad foresight is marked with divisions so that allowance can be made for wind by aligning a suitable point in the width of the foresight with the target. As shown, the foresight 11 has two upward projections 13 of such a height that they obscure only the lower half of the standard target. Preferably, the widths of the projections and of the intermediate and end portions of the sight are calculated in accordance with the sight-radius of the gun to represent known distances of deflection per unit of range or known angles of deflection.
Patent GB-1189794-A (GB)
Title: Heat-Resistant Conveyor Belt.
Inventor: KNAPP HEINRICH
IPC: B65G15/38
Filed: 1968-05-01
Abstract: 1,189,794. Endless conveyer belts. TRANSPORTGUMMI VEB. 1 May, 1968, No. 20695/68. Heading B8A. [Also in Divisions B2 and B5] A heat-resistant endless conveyer belt containing steel reinforcing cords consists essentially of nitrile rubber and polychloroprene, the nitrile rubber providing at least 50% of the elastomer content; it may be made by coating the cords with a rubber composition containing a bonding agent, e.g. ammonium cobalt rhodamide, embedding in a rubber composition which may also contain ammonium cobalt rhodamide (said compositions containing elastomer as specified above and other specified conventional additives), joining the ends by using an adhesive rubber composition containing resorcinol and hexamethylene tetramine, and vulcanising.
Patent GB-636493-A (GB)
Title: Improvements in or relating to apparatus for measuring frequency of electric oscillations
IPC: G01R23/09
Filed: 1947-07-30
Abstract: 636,493. Frequency measurement. AIRMEC LABORATORIES, Ltd., SIMMONDS, J. C., and JONES, F. July 30, 1947, No. 20696. Addition to 589,562. [Class 37] The frequency measuring system of the parent Specification in which each cycle or pulse of the wave to be measured produces a single pulse which is used to trigger a flip-flop valve V23 into its unstable condition, the output impulses from the flip-flop circuit being integrated by a meter with mechanical inertia, is modified as follows: (1) The output impulses from the flip-flop transitron valve V23 are limited as to their upper and lower voltage levels by oppositely connected diodes V27, V28 in conjunction with a cold cathode tube V29 forming part of a potential divider for giving a fixed voltage difference between the cathode of V27 and the anode of V28. (2) The apparatus is adapted for different frequency ranges by providing ganged switches S22, S23 which simultaneously alter the value of the coupling condenser C28 between the screen and suppressor grids of the flip-flop valve V23, and the value of the condenser C29 in the differentiating circuit C29, R39 feeding the rectifier W21 of the measuring circuit. (3) A diode V30 is added to block positive pulses from the grid of valve V23. (4) Variations in the H.T. voltage are eliminated by the addition of two cold cathode tubes V25, V26 in series across the H.T. supply. (5) The amplifier valve V21 as well as valve V22 is designed to act as a limiter by a suitable choice of components, and by stabilization of the screen voltage at a low value from the junction of cold cathode tubes V25, V26.
Patent GB-516193-A (GB)
Title: Improvements in or relating to electron discharge and like devices and electrodes therefor
IPC: H01J19/42
Filed: 1938-07-12
Abstract: 516,193. Attaching fittings to glassware. TELEFUNKEN GES FUR DRAHTLOSE TELEGRAPHIE. July 12, 1938, No. 20706. Convention date, July 24, 1937. [Class 56] [Also in Groups XL and XI] In an electric discharge tube one or more electrodes or a screen is or are formed by (i) metal foil fused on or (ii) metal wire network or gauze embedded in the wall of the insulating envelope; the wires of the gauze are fused into the surface so that in part they are sunk into the glass of the envelope. The gauze will follow the shape of the envelope which may be square or elliptical in cross section; it may form the anode of a valve and by its association with the wall lends itself to air cooling. The electrodes may be. disc or plate shaped. For short wave tubes the grid 5, and anode 2 are both attached to the envelope wall and have extensions 5<1>, 2<1>, which may serve as leads to the electrodes. The envelope may be of quartz or ceramic material.
Patent GB-923339-A (GB)
Title: Improvements in or relating to silicon diodes
IPC: H01L29/43
Filed: 1959-06-17
Abstract: 923,339. Silicon diodes. WESTERN ELECTRIC CO. Inc. June 17, 1959 [June 18, 1958], No. 20738/59. Class 37. A silicon alloy diode (Fig. 1) comprises a preferably monocrystalline silicon wafer 11 most of which is N-type and has a specific resistivity of 0.001-0.005 ohm cm. The wafer includes a narrow PN junction made by an alloy P-type region 14 in the N-type portion. Separate lowresistance electrodes 12 and 13 are connected to each portion. The device has an essentially symmetrical voltage - current characteristic though for values of resistivity near 0.001 ohm cm. the " reverse " saturation voltage is less than the forward saturation voltage. This effect is attributed to tunneling. A square wafer is cut from a suitable crystal, etched, washed and dried and is placed on a tantalum strip heater as described in Specification 724,930 and alloyage on one of the square faces with a ten mil. 0.1% antimony doped gold wire is performed in a nitrogen atmosphere. The wafer and alloyed wire are recleaned and replaced on the heater to enable a 5 mil. aluminium or gallium wire or pellet to be similarly alloyed on to the opposite square face. The completed diode is cleaned, washed, dried and potted in lowmelting point glass as described in Specification 923,338 and leads are connected to the two wires.