baber/WOPTO huggingface dataset:
Patent GB-139502-A (GB)
Title: A new or improved abrasive stone
Filed: 1920-02-25
Abstract: 139,502. Norton Co., (Assignees of Stean, J. H.). Feb. 26, 1919, [Convention date]. Plastic compositions containing bauxite, carbides, corundum, emery, and like abrasive agents for grindstones and the like.-Sharpening-stones for surgical and like instruments are made from a fine abrasive mixed with graphite and a non- gritty bond, preferably organic, such as shellac. The abrasive may be corundum, emery, silicon carbide or the like, but crystalline alumina is preferred. Specified binders are shellac, bakelite, celluloid, casein, natural or artificial rubber, vulcanized oil. In an example, a stone having coarse and fine sides is made by half-filling a mould with a composition consisting of alumina 80 per cent and shellac 20 per cent by weight, and filling up the mould with a composition consisting of alumina grains 65 per cent, graphite 10 per cent, and shellac 25 per cent. The mould is heated to 350-375‹ F. and then subjected to high pressure. After cooling, the stone is removed and heated tn 400‹ F. to drive off the volatile constituents of the shellac,
Patent GB-1406012-A (GB)
Title: Remotely-operable register resetting mechanism
IPC: G06M1/36
Filed: 1973-02-06
Abstract: 1406012 Resetting of counters SUN OIL CO 6 Feb 1973 [28 March 1972] 5776/73 Heading G4D The invention concerns a control mechanism for the resetting shaft of a counter used in a liquid dispenser such as a petrol pump. At the end of a dispensing operation a manually operable member (not shown), such as the switch lever used to turn on and off the pump motor, rotates a drive member 180 anticlockwise (Fig. 5); by a releasable coupling (parts 187, 190) a control plate 182 is taken along to a predetermined angular position (as shown in Fig. 5) when the coupling is released. Subsequently a shaft 250 and thus a linkage 19 is moved, e.g. by a remotely controlled electric motor, to drive the control plate 182 back in a clockwise direction, a one-way coupling on the plate 182, shown as a pawl 200 and ratchet 184, driving a gear 130 coupled to the resetting shaft 126, 126<SP>1</SP>. The dispenser includes a pair of counters (Fig. 1, not shown) coupled through a variator (not shown) to the pump shaft so as to display quantity and price of the liquid dispensed, and a duplicate pair of counters on the other side of the dispenser. All four counters are reset to zero by rotating the shafts 126, 126<SP>1</SP> through one turn. The shafts drive individual gear trains for each number wheel and these are declutched from the normal drive and clutched to the gear trains by shifting the counter shafts (14, 16, 18, 20) axially through rack and pinion drives (150, 152) and a cam (134) rigid with the drive plate 180 on shaft 132. The control plate 182 is urged to its end positions by an overcentre spring mechanism 5. The link 19 on shaft 250 is driven once through the angle α, to reset the counters, and back again for each operation of a remote push-button 28 (Fig. 12, not shown). Inadvertent operation of the button before the manual member has been moved to stop the pump motor is ineffective since the link 19 simply moves along slot 23. The push-button may be on an operator's console at a filling station together with remote reading counters (not shown); the latter may be driven electrically by pulses from reed switches operated by magnets at each number position on the lowest denomination wheels of the pump mounted counters. Since the counters can only be reset remotely the normal interlocks prevent a further dispensing operation until the operator chooses.
Patent GB-733414-A (GB)
Title: Conductors for printed circuits
Inventor: BOOTH FRANK OLIVER
IPC: H05K1/09
Filed: 1951-03-09
Abstract: A non-metallic surface is covered with copper particles having a diameter not exceeding 70m  and substantially all greater than 1m  by coating with a slurry of the particles in an inert volatile liquid, the copper particles being coated with silver, gold or platinum. Specifications 672,255, [Group XXXVI], 672,260 and 690,486, [both in Group II], are referred to.ALSO:Copper powder of a size not exceeding 70m  but substantially all particles exceeding 1m  is uniformly coated with a noble metal (i.e. silver, gold or platinum).  The coating may be applied by chemical decomposition or electroplating, examples being given. The powder may be applied as a slurry in an inert volatile liquid such as acetone and applied to the surface of an organic electrically insulating material, heat and pressure being applied to the resulting coated surface to form printed circuits (see Specifications 672,255, [Group XXXVI], and 690,486).  Resistors may be made as disclosed in Specification 672,260.  The slurry may be applied to the surface of an article which does not soften under the influence of heat and pressure by applying the slurry before completely condensing the resin.  The powder may be applied with the aid of an adhesive.  It is stated that copper powder can be prepared by the reduction of copper oxide with protalbinic acid and an ethanolamine.
Patent GB-182088-A (GB)
Title: Improvements in pneumatic columns for supporting fluidactuated percussive tools
IPC: E21B7/02
Filed: 1922-02-27
Abstract: 182,088. Ingersoll-Rand Co., (Assignees of Bayles, L. C.). June 22, 1921, [Convention date]. Percussive drills.-A supporting column for a percussive tool contains a rod F forced into contact with the rock by pressure fluid supplied beneath a piston E under the control of a cock T and further pressed upwards by means of a spring R and a screwed sleeve H loosely surrounding the rod and screwed out of the cylinder by inserting a bar into one of the holes P. The column is thus prevented from collapsing on the failure of the air pressure. The cock T also controls the supply of air to the tool by way of the pipe Y. The Specification as open to inspection under Sect. 91 (3) (a) also describes a modified form in which the rod F is formed with a buttress thread which enables it to slide upwards through a split nut g under fluid pressure; the rod being then rotated by means of the holes r, the halves of the nut are driven down on their seats, affording the required extra pressure. This subjectmatter does not appear in the Specification as accepted.
Patent GB-413242-A (GB)
Title: Improvements in devices for connecting an illumination apparatus to a microscope
IPC: G02B21/08
Filed: 1934-02-22
Abstract: 413,242. Microscopes. ZEISS, C., [Firm of], Carl -Zeiss-Strasse, Jena, Germany. Feb. 22, 1934, No. 5808. Convention date, Feb. 24, 1933. [Class 97 (i).] Means for attaching an illuminating device to a microscope consists of a support a having at one end an extension b provided with pins e fitting into recesses f in the foot c of the microscope. The member a is formed with a groove m and carries a disc g which is pivoted about an eccentric axis h and is provided with a pin l, the plane containing the pin and groove m lying approximately in the direction of the axis of the pencil of illuminating rays. The lamp g is contained in a casing n having an aperture into which the pin l passes. The casing has a foot o resting on the table t and carries an adjusting-screw p which enters the groove m. The casing can be adjusted vertically by the screw p and transversely by turning the disc g which can be clamped by a screw k after adjustment.
Patent GB-163812-A (GB)
Title: Improvements in and connected with fuse and junction or terminal boxes for electric lighting installations
IPC: H02G3/16
Filed: 1920-02-26
Abstract: 163,812. Stone & Co., Ltd., J., (Walton, M.). Feb. 26, 1920. Fuse-boards.-Fuse boxes have the bottcm channelled to form a series of parallel hollow upstanding ribs within the box. The terminal screws j pass through holes h in these ribs against the sides of which their heads k are non-rotatably engaged. Suitable insulation p, q, r is provided between the studs and the box. The cables are received in non-metallic panels l, suitably perforated and preferably divided through the perforations, each half panel having grooved ends m whereby it engages tongues on the edges of the box opening. Labels w, consisting of strips of fibre, are secured on and between the terminal screws to identify them. The box has a lid g which is secured upon raised posts at its corners by screws and spring washers 2, the rolled edges g<1> of the lid engaging a ledge v carried round the box and panel members.
Patent GB-663396-A (GB)
Title: Improvements in frequency-stabilizing methods and systems
IPC: H03L7/26
Filed: 1949-03-03
Abstract: 663,396. Frequency and phase measurements. RADIO CORPORATION OF AMERICA. March 3, 1949 [Sept. 25, 1948], No. 5887/49. Class 37. [Also in Groups XXXV and XL (b)] The carrier wave of a frequency-modulated television or like transmitter is stabilized as to frequency by comparing the instantaneous carrier frequency with a gas-cell frequency standard only during quiescent or unmodulated periods, and utilizing the result of the comparison to control the carrier generator. The quiescent period a, Fig. 1, may occur between the synchronizing pulse a and the vision signal B at the end of each line. The frequency stabilizing circuit, Fig. 2, is substantially that described in Specification 658,198, but modified by the provision of gating pulses to render it operative only at the desired intervals a. In the case of a relay station comprising a receiving aerial 13 and receiver 14 followed by a transmitter 10 feeding an aerial 12, the gating pulses are derived at 30 from the receiver 14 and are applied at one or more of the points Z, Z<SP>1</SP>... Z' to render operative the corresponding elements 29, 28, 20, 18, 17 of the stabilizing circuit. As shown in Fig. 4, the gating pulses are derived by detecting the received F.M. wave at 48, and removing the vision signal by the diode 44, thus leaving broad pulse signals which are narrowed at 44<SP>1</SP>, and delayed by the line 45, to provide narrow pulses occurring at the quiescent periods a, Fig. 1. The gating pulse may be converted to saw-tooth form by the circuit 46, Fig. 4, so as to effect a frequency sweep of the local source 17 when applied to the frequency modulator 18. In the case of a primary transmitting station, Fig. 6 (not shown), the source 30 of gating pulses may be controlled by the line frequency generator. Specification 577,758, [Group XXXV], is referred to. Reference has been directed by the Comptroller to Specification 663,065.
Patent GB-982264-A (GB)
Title: Manufacture of bicyclo-(3.2.1)-octene-(2)
IPC: C07C1/32
Filed: 1963-02-13
Abstract: Bicyclo - [3.2.1] - octene - 2 is obtained by heating to above 130 DEG  C. either an aluminium trihydrocarbon compound containing at least one beta - cyclohex - 2 - enylethyl group, any other groups being alkyl groups, preferably in the presence of an alpha-olefin or a mixture of 4-vinylcyclohexene and an aluminium alkyl compound capable of forming said aluminium trihydrocarbon.  Suitable reaction mixtures include tricyclohexenylethyl aluminium with isobutene or 4-vinylcyclohexene or triisobutyl aluminium or diisobutyl aluminium hydride with 4-vinylcyclohexene.  The product is distilled to separate products from aluminium compounds which are reused.
Patent GB-879509-A (GB)
Title: Improvements in or relating to an electric cell
IPC: H01M50/409
Filed: 1958-02-24
Abstract: 879,509. Batteries. YARDNEY INTERNATIONAL CORPORATION. Feb. 24, 1958 [Feb. 23, 1957], No. 5956/58. Class 53. To prevent growths of active material extending from one electrode to another, and to aid the solution of such growths a cell is provided with a permeable metal plate between the electrodes but out of contact therewith, the plate having a lower overvoltage than one or both of the electrodes. The plate may be made of silver, gold or other noble metals or of iron, nickel, or nickel cobalt alloys, and it may be in the form of mesh, woven or knitted fabric, expanded metal or perforated metal sheets. Alternatively it may consist of porous sintered or sprayed metal either self-supporting or attached to a permeable support. The metal may also be plated.on the battery separator or attached thereto in powder form, or precipitated by ehemical processes or vacuum sublimation. In another modification the metal is dispersed in polyvinyl alcohol, viscose solutions or other film-forming medium which is then spread on a support. The barrier plate may be used in lead acid cells, zinc silver alkaline cells and zinc nickel cells. Fig. 3 shows a cell in which the electrodes 21, 23 are provided with electrolyte distributing wicks 25 and separators 26. A metal barrier plate 27 is inserted between the separators. Fig. 4 shows a cell in which the barrier metal 36 is coated on the separator 37 or on the wick 35.
Patent GB-213550-A (GB)
Title: Improvements in calculating machines
IPC: G06C25/00
Filed: 1924-03-08
Abstract: 213,550. Grimme, Natalis, & Co. Akt.- Ges. March 29, 1923, [Convention date]. Platen-impression arrangements .-Item-printing mechanism' for a cam-disc and pin-wheel machine comprises an impression roller c for pressing the paper a against the type b, the roller c and a paper roller e being mounted on a pivoted frame d having an arm g with a slot g<1> engaging the squared head of a. pin h<1> rotatably mounted in a lever h pivoted at h<2> and having its other end actuated by a cam k on the pinwheel shaft i. The frame d is pivoted to a bar f which may be moved laterally to disengage the slot g<1> from the pin h<1> so that the roller c is not operated from the cam k. When this occurs a lateral spring m engages the squared head of this pin h<1> so as to hold it in the position ready for re-engagement by the slot g<1>. The lever h passes through a slot o in the bar f having an incline p so that, when the bar f is moved laterally to disengage the slot g<1> and the pin h', the lever h rides up the slope p so that its other end is depressed away from the cam k. Specification 5647/06 is referred to wherein the items are set up on the type sectors by auxiliary setting members which coact with the cam discs during setting but do not rotate with the main pinwheel shaft during operation thereof.
Patent GB-575716-A (GB)
Title: Improvements in cages for roller bearings
IPC: F16C33/54
Filed: 1944-03-31
Abstract: 575,716. Bearings. HOFFMANN MANUFACTURING CO., Ltd., and NEWTON, B. F. March 31, 1944, No. 5991. [Class 12 (i)] A roller bearing cage comprises a built-up assembly of separate side rings and Y-shaped separating members, the arms b of which bear on and separate the rollers a and the stems of which connect the side rings d of the cage by spot-welding or by lugs e extending through holes in the side rings and riveted thereover. The arms b are made narrower than the stem to avoid fouling any end shoulder on the races. The arms b may extend radially inward.'
Patent GB-308066-A (GB)
Title: Improvements in grinding or abrading machines
IPC: B24B5/26
Filed: 1928-02-25
Abstract: 308,066. Hughes, V. A. B., (Cincinnati Grinders, Inc.). Feb. 25, 1928. Centreless grinding; guides and rests.-A centreless grinding machine is adapted for grinding truly cylindrical work or work which is slightly convex or concave on its cylindrical surface. The machine comprises a high speed grinding wheel 10 and a low speed regulating wheel 11 which is slightly skewed at a variable angle to feed the work 23 along a support 14. The wheels are of hard material such as emery. The support has an inclined upper surface 24, Fig. 2, to maintain the work against the regulating wheel by gravity and is' provided with a hard steel wearing strip 22 which may be removed, rotated and replaced to present a new surface to the work when worn. The lower surface 30, Fig. 3, of the support is inclined and rests on the inclined surface 31 of a holder 17 adjustably attached to the machine frame 18 by a slot 20 and bolt 19. Adjustment of the height of the support to accommodate different sized work is facilitated by graduations 34 on the support and an index mark 33 on a cut-away portion 32 of the holder, the support being a loose fit in the hollow and being clamped after adjustment against a flange 16 of the holder by screws 27 passing through inclined slots 29 in the support. The flanges 15, 16 of the holder receive work guides comprising plates 35, 45, provided with hard steel wearing strips 39 secured by screws 40. The strips may be reversed to provide four different work engaging surfaces for each strip when worn. The guide plates are supported on the holder 17 by rounded ends 36 and may be rocked about these ends or about vertical axes by pairs of screws 41, Figs. 2 and 3, single screws and clamping screws 42 having rounded necks 43 engaging the plates. For grinding truly cylindrical work the guides are set parallel to the grinding throat whilst for grinding work which is slightly concave the guides are rocked to the positions shown in Figs. 4 and 6 whereby the grinding wheel 10 removes more material from the middle of the work than from the ends. For grinding slightly convex work the guides are given an inclination opposite to that shown in Figs. 4 and 6 with respect to the grinding wheel. One of the rear guide plates 46, Fig. 3, may be cut away as at 47 to allow lateral removal of the work after grinding.
Patent GB-687131-A (GB)
Title: Improvements in or relating to cold storage chambers constucted of prefabricated building blocks
IPC: F25D23/06
Filed: 1947-03-03
Abstract: 687,131. Building blocks. ISOLERINGSAKTIEBOLAGET W.M.B. March 3, 1947 [March 1. 1946], No. 6013/47. Class 87(i). [Also in Group XIII] In a cold storage chamber, the insulating walls are built of fabricated blocks 30, 31 each comprising a mass 12 of insulating material, e.g. of corrugated and plane paper sheets impregnated as described in Specification 550,562, [Group XIII], or of porous material, disposed within a framework 26, 27 and asphalt-coated casing of plates or strips 18, 29, e.g. of sheet metal, fibre board or plywood, on the faces and edges of the insulation 12. Moreover, one or more passages such as those formed by the corrugated sheets nearest the chamber interior are arranged in the individual blocks and in the insulated floor or roof extending under the whole inner face thereof and intercommunicating by means of a distributing air channel 82 or 90. The floor and/or roof insulation may comprise blocks similar to the wall blocks. In the case of porous insulation a lattice-work is arranged between the insulation and the inner plate 18 of the casing to form a passage system for the air. Adjacent blocks are joined at their sides by a projection 34, Fig. 3, on one fitting into a recess 32 on the other and compressing a layer 40 of asphalt or asphalt impregnated cloth. A metal fillet 42 is screwed across the front seam. The corner blocks 31 are of L-section. Specifications 556,453 and 687,165 [both in Group XIII], also are referred to.
Patent GB-951840-A (GB)
Title: Dihydrodibenzoxazepines
IPC: C07D267/18
Filed: 1962-02-16
Abstract: The invention comprises a compound consisting of a base of the formula: <FORM:0951840/C2/1> wherein A is a lower alkylene radical of at least 2 carbon atoms, B is a basic saturated nitrogen containing radical of less than twelve carbon atoms consisting of amino, (lower alkyl) amino, di (lower alkyl) amino hydroxy,-(lower alkyl) amino, di-(hydroxy-lower alkyl) amino, piperidyl, (lower alkyl) piperidyl, di (lower alkyl) piperidyl, (lower alkoxy) piperidyl, pyrrolidyl, (lower alkyl) pyrrolidyl, di-(lower alkyl) pyrrolidyl, (lower alkoxy) pyrrolidyl, morpholinyl, (lower alkyl) morpholinyl, thiamorpholinyl, (lower alkyl) thiamorpholinyl, di (lower alkyl) thiamorphinyl, (lower alkoxy) thiamorpholinyl, piperazyl, (lower alkyl) piperazyl, di (lower alkyl) piperazyl, (lower alkoxy) piperazyl, (hydroxy lower alkyl) piperazyl, (lower alkanoyloxy-alkyl) piperazyl or (carbo-lower alkoxy) piperazyl, and R and R1 are hydrogen, halogen, lower alkyl, trifluoromethyl, trifluoromethyl mercapto, trifluoromethoxy or N, N-dimethyl-sulphonamido, R and R1 being the same or different or a non toxic acid addition salt thereof, and processes for the preparation thereof by interacting a compound of the formula: <FORM:0951840/C2/2> wherein R, R1, A and B are as above defined, and if desired treating the resultant base with the desired acid to produce the corresponding acid addition salt thereof.  The starting compound is obtained by reacting a compound of the formula: <FORM:0951840/C2/3> with formic acid to obtain a compound of the formula: <FORM:0951840/C2/4> wherein X1 is chloro or bromo, which compound is treated with a base to obtain a compound of the formula: <FORM:0951840/C2/5> which is hydrolysed to obtain the desired compound.  Therapeutic compositions containing the above compounds and utilisable as ataractic agents and antihistamines are administered orally or parenterally, e.g. as tablets, capsules, or injectables.
Patent GB-200131-A (GB)
Title: Improvements in electrode holders for high frequency electrical apparatus
IPC: A61N1/06
Filed: 1922-03-01
Abstract: 200,131. Bower, J. B. March 1, 1922. Electric and magnetic appliances. - A holder for a vacuum tube electrode for high frequency medical and dental treatment comprises a hollow handle a of insulating material such as ebonite divided by an integral partition g into a portion h arranged to receive a highly insulated cable or a high-frequency transformer d, and a socket portion i in which is housed a metal socket f for holding the electrode, the socket being provided either with a plunger rod e making contact with a terminal on the transformer, or with a tail-piece connected with the cable. A spring k between the partition and an enlarged head e' maintains the head in contact with a knob on the transformer. For use with a cable. the rod e is formed with an axial hole in which the cable is soldered or secured by a screw.
Patent GB-1528640-A (GB)
Title: Electronic circuit
IPC: H03F1/30
Filed: 1976-02-17
Abstract: 1528640 Transistor amplifiers and oscillators HITACHI Ltd 17 Feb 1976 [28 Feb 1975] 06233/76 Heading H3T An amplifier, Fig. 5, comprises at least one amplifying IGFET having its gate connected to an input terminal and its drain connected to an output terminal, a bias resistor R F  connected between the input and output terminals of the amplifier, first and second capacitors C G1 ,   C G2  respectively, connected in series across the power supply terminals, and defining a voltage divided from the supply voltage equal to a bias voltage produced via the bias resistor, the divided voltage being applied to the input terminal. C G2  may for example be a parasitic capacitance, and in the absence of C G1 , the bias potential of the input terminal would be slow to follow a transient decrease in the supply voltage - V DD . In the circuit of Fig. 5, with equivalent FET's Q N , Q P , the bias voltage will remain proportional to VDD provided that C G1  is made equal to C G2 . In another embodiment, Fig. 4, a quartz crystal oscillator circuit 1 for a watch, comprises an amplifier as above having a positive feedback path which includes capacitors C D , C G <SP>1</SP>. The value of a capacitor C G <SP>11</SP> is selected such that the biasing of the gates of Q N1 , Q P1  is proportional to the supply voltage V DD  even under transient conditions. A transient drop in supply voltage may occur when the motor winding M of the watch is pulsed. The quartz oscillator QO is used as an inductive element, and may alternatively be substituted by an inductor.
Patent GB-734313-A (GB)
Title: Improvements relating to work-boxes and the like
IPC: D05B91/14
Filed: 1953-03-06
Abstract: 734,313. Cabinets. KLAAS, H. K. March 4, 1964 [March 6, 1953], No. 6240/53. Class 52 (1). A work-box comprises a bottom tray 1 having a central handle 2 and connected by links 5, 6, 7 as shown to pairs of superposed trays 3, 4 which can be swung to open position. It is fixed to a wheeled trolley (not shown).