baber/WOPTO huggingface dataset:
Patent GB-274321-A (GB)
Title: Improvements in rectifiers for alternating currents
IPC: H01L29/86
Filed: 1926-10-16
Abstract: 274,321. Gill, E. R. Oct. 16, 1926. Contacting-solid resistances.-The surface of the crystalline element of a crystal rectifier suitable for use in charging storage batteries from an alternating current source is modified by moistening with water or dilute sulphuric acid and passing an alternating or direct current therethrough. A mass of iron pyrites, for example, is cut into a cubical form 10 and its surfaces are moistened in pairs and placed between carbon electrodes 14, 16 connected to a current supply source 12, 13. During passage of current, the mass is moved about between the electrodes. This treatment is stated to cause the surfaces of the crystalline mass to assume a mottled appearance which enbles the most sensitive point 'for cooperation with a silver or other metal contact to be selected visually. The less sensitive surfaces are then ground and copper-plated for mounting, the contact point forming the other element of the rectifier is brought to bear on the selected sensitive surface, and the rectifying effect is further improved by again moistening the surface and passing current through the contact point. This operation may be repeated after drying. Specifications 264,051 and 264,052 are referred to.
Patent GB-297974-A (GB)
Title: Improvements in machines for cutting the pile of pile fabrics
IPC: D06C13/08
Filed: 1927-10-01
Abstract: 297,974. United Velvet Cutters Association, Ltd., and Carmichael, E. Oct. 1, 1927. Pile, cutting; stop-motions.- Relates to weft-pile cutting machines of the kind in which the arm e, Fig. 1, carrying the Ignite holder c is held in operative position against the action of the spring h by a rod f having a projection g, Fig. 3, normally engaged by the end m<2> of a spring-controlled lever m having an armature m<3> attracted by an electromagnet n, and in which the arm e is mounted on an arm e<2> secured to a vertical support pivotally mounted on a pedestal which is braversed intermittently by a screw l. According to the invention, the arm m carries a part m<4> adapted normally to engage a blade spring t to make electrical contact with a plate s, thereby completing a circuit through an electromagnet controlling the stop mechanism of the machine. The arm m also carries a depending spring w having a part w<1> adapted, on tilting the pedestal backwardly, to make contact with a fixed bar y and thereby to move the arm into position for attraction by the electromagnet on restarting the machine. The circuit through the electromagnet n is normally completed through an arm o insisted from the arm e and pivoted thereon and having a part o<1> held in contact with the knife guide holder d<2> by a spring-controlled insulated arm q engaging a part o<2> of the arm o. When the knife pierces the fabric, it becomes tilted and the fabric passes between the knife guide holder d<2> and the part o<1> of the arm, whereby the circuit is broken through the electromagnet. the rod f being released thereby to allow the spring h to withdraw the knife, while the breaking of the circuit between the contacts s, t causes a brake to be applied to the machine.
Patent GB-801689-A (GB)
Title: Improved cooled gas turbine rotor for high gas-temperatures
IPC: F01D5/08
Filed: 1955-09-12
Abstract: 801,689. Gas turbine rotors. HENSCHEL & SOHN G.m.b.H. Sept. 12, 1955 [Sept. 10, 1954], No. 26013/55. Class 110 (3). In a cooled gas-turbine rotor, blades 2 are mounted in axially- (or approximately axially-) directed slots 8 formed in the rotor, and small bores 5 are provided in the rotor stubs between the blade-mounting slots, cooling fluid passing from an inner hollow space 6 in the rotor in to the bores to the outer periphery of the rotor. Further small bores 7 are provided and extend from the space 6 towards the bottoms of the blade-mounting slots. The bores 5 and 7 are closed by means of screwed plugs 9. The cooling fluid, which may be water under pressure, may be passed through a heat exchanger where it gives up heat to the fuel. The blades may be secured in the slots by welding, the welded joint assisting flow of heat from the blades to the rotor. Alternatively the blades may be made of ceramic material.
Patent GB-376089-A (GB)
Title: Improvements in sash cord and like pulleys
IPC: E05D13/00
Filed: 1931-09-17
Abstract: 376,089. Roller bearings. LAIDLAW & THOMSON, Ltd. and NICHOLS, H., 27, Cannon Street, Manchester. Sept. 17, 1931, No. 26016. [Class 12 (i).] A sash cord pulley g or the like is mounted on bearing rollers h alternately made of steel and gunmetal or the like to minimize rusting. The baseplate a of iron has a brass facing d. The pulley g is of gun - metal. To reduce the side friction the rollers h are recessed at the ends i.
Patent GB-191133-A (GB)
Title: Improvements in dough working machines
IPC: A21C7/02
Filed: 1921-10-03
Abstract: 191,133. Strawbridge, R., and Marchant, J. N. Oct. 3, 1921. Rolling-machines; feeding. -A dough-working machine comprises a volute trough with two complete convolutions, and a rotary closing disc with curved serrations on the working face. A double volute trough is used when it is desired to make cottage loaves. For this purpose, the. machine consists of a vertical board 1 with two parallel volute channels 2, 3, each having openings situated side by side at the inner and outer ends. The closing disc is mounted upon a fixed spindle 14, and pressed against the troughs by a spring 16; the disc may be driven by hand or by power. A dividing chamber 22 with a hopper 23 is fitted on the rear end of the trough board adjacent to the respective inlets 6, 8, and is provided with two cutter discs 25. The hopper is mounted to slide in a guide 26, and may be adjusted transversely to the cutters by a screw 27. The depth of the channels may be varied by the use of templates secured to the board to form extensions of the channel walls.
Patent GB-677871-A (GB)
Title: A process for the production of insulating panels, door panels, furniture boards or the like
IPC: E04C2/38
Filed: 1950-10-30
Abstract: 677,871. Building panels. PRASE, W. Oct. 30, 1950 [Oct. 29, 1949], No. 26352/50. Class 87(i) In the manufacture of a building panel comprising a frame covered with sheets and filled with glass-wool, slag-wool &c., with or without a binder, a sheet 2 having a frame 17 glued thereto is placed in a press mould 1, material 22a is placed in position and retained by keys 21 engaged in slots 19, a sheet 15 with, if desired, a frame 18 glued thereto is added and the whole compressed. The panel may be strengthened,by internal frame members 10 glued to the sheets 2, 15 and having dowels 14 arranged in holes therein, and by further frame members 25.
Patent GB-1500909-A (GB)
Title: Conveyor belting and conveyors
IPC: B65G23/16
Filed: 1974-06-13
Abstract: 1500909 Conveyer belts DUNLOP Ltd 2 June 1975 [13 June 1974] 26354/74 Heading B8A A conveyer belt having increased resistance to longitudinal bending is formed by two toothed belts 2, 3, which are in toothed engagement in the load carrying zone of the belt. The latter has longitudinal reinforcements 4 and lateral reinforcements 5. The part of the belts in toothed engagement is supported by rollers 8. These may extend over the width of the belt, or alternatively may support just the edges. The teeth 6 of each belt may, instead of being in separate projections as shown, extend across the whole width of the belt. They may then be formed with alternate portions of different thickness (Fig. 4, not shown). Rows of discontinuous teeth 6 may be arranged in chevron formation (Fig. 3, not shown).
Patent GB-1151866-A (GB)
Title: Process for the preparation of 3-Hydroxy-1,3,5(10),7-dehydrosteroids and their 3-ethers
Inventor: PHILLIPPS GORDON HANLEY
IPC: C07J1/00
Filed: 1965-06-22
Abstract: 1,151,866. 3-Hydroxy-#<SP>2,5(10),7</SP> and #<SP>1,3,5(10),7</SP>- steroids and their 3-ethers. GLAXO LABORATORIES Ltd. 17 June, 1966 [22 June, 1965], No. 26389/65. Heading C2U. The invention comprises (a) a process for preparing 3 - hydroxy - 1,3,5(10),7 - dehydrosteroids and their 3-ethers which comprises reacting 3 - hydroxy - 2,5(10),7 - dehydrosteroids or their 3-ethers with a brominating or chlorinating agent to effect halogenation and dehydrohalogenation; and (b) the novel steroids 3 - methoxy - estra - 2,5(10),7 - trien - 17 - one (I); 17α- ethynyl - 3 - methoxy - extra - 2,5(10),7-trien-17#-ol (II) and the corresponding 1,3,5(10),7 - tetraene; 17α - chloroethynyl - 3 - methoxy - estra - 2,5(10),7 - trien - 17# - ol (III) and the corresponding 1,3,5(10),7-tetraene; 3- cyclopentyloxy - estra - 2,5(10),7 - trien - 17 - one (IV) and equilin cyclopentyl ether; and 3-cyclopentyloxy - 17α - ethynylestra - 2,5(10),7-trien- 17#-ol (V) and the corresponding 1,3,5(10),7- tetraene. (I) is prepared by oxidation of the corresponding 17#-ol, and is converted to (II) and (III) by standard procedures. (IV) is prepared similarly and is similarly converted to (V). The 3-ether may be cleaved during process (a) to the 3-ol, which may subsequently be reetherified. Starting material which are 17-oxosteroids may be prepared by oxidation of the corresponding 17#-ols. The 17-oxo group may, if desired, be protected, e.g. as a ketal, and subsequently released.
Patent GB-297578-A (GB)
Title: Improvements in, or relating to, expanding bracelets
IPC: A44C5/08
Filed: 1927-10-06
Abstract: 297,578. Jones, F., and Jones, E., (trading as Jones & Sons, R. H.). Oct. 6, 1927. Bracelets.-A link for expanding bracelets and of the kind comprising side plates a connected by cross-bar elements b is assembled, without soldering, by bending in, by press tools, projections c, on the top and bottom edges of the channel shaped side plates, into slots or recesses formed in right-angled extensions b' on the cross-bar element b.
Patent GB-721338-A (GB)
Title: Improvements in or relating to a method and a device for producing a velvet type fabric
IPC: D06C13/08
Filed: 1952-10-22
Abstract: 721,338. Releasable fastenings. VELCRO SOC. ANON. Oct. 22, 1952 [Oct. 22, 1951], No. 26492/52. Class 44. [Also in Groups IX and XXIII] A garment or other fastener comprises two strips of fabric, Fig. 2, having a stiff pile 9 formed with hooked ends 4 which interengage when the strips are pressed together and yield when they are forcibly pulled apart. In another form, Fig. 3, the pile has globular ends 12.
Patent GB-971032-A (GB)
Title: A new or improved plant holder
IPC: A01G27/04
Filed: 1962-07-10
Abstract: 971,032. Flower pots; watering plants. F. PETERKEN. July 8, 1963 [July 10, 1962; Aug. 29, 1962], Nos. 26556/62 and 33173/62. Heading A1E. A plant holder comprises a container 2 for plant bedding material having an extension 4 in its base wall to a liquid holding part 1, the extension being capable of housing a capillary medium 5 for drawing liquid from the part 1, and the base wall of the container 2 falling away from the rim of the extension. The container 2 may be superposed on the part 1 as shown, or comprise a trough at one end of which is located a water tank, a duct leading from the tank into a channel formed in the base of the trough and containing the capillary medium. The capillary medium may be powdered glass or sand and is held in the extension 4 by a glass fibre plug 6.
Patent GB-426470-A (GB)
Title: Improvements in and relating to drills
IPC: E21B17/046
Filed: 1934-09-17
Abstract: 426,470. Percussive drills. NORLEY, H. C., 551, Reid Street, Peterborough, Ontario, Canada. Sept. 17, 1934, No. 26612. Addition to 392,788. [Class 124] The steel 1 is formed with two opposing projections 3, 4, which enter holes 8, 9 in the detachable cutter 5. The holes are wider than the projections, thus permitting endwise movement to allow the tapering steel to jam in the recess 7.
Patent GB-695179-A (GB)
Title: Sonic sounding apparatus and stylus structure therefor
IPC: G01S1/72
Filed: 1951-11-14
Abstract: 695,179. Recording-apparatus. BENDIX AVIATION CORPORATION. Nov. 14, 1951 [Dec. 28, 1950], No. 26689/51. Addition to 666,263, (Group XXXVIII]. Class 106 (iv). Apparatus for distance measuring by sonic or supersonic waves transmitted in response to electric waves generated on the closure of a control circuit by a brush element on a stylus-moving structure co-operating with stationary means comprises a flat base member 25 attached to a belt 12 for scanning a second strip 11 and provided with three triangularly-disposed lugs 26a, 26b, 26c, for engaging a spring wire stylus element 20 whose resilience yieldably retains it with a free end 20a extending into contact with the record strip. The record strip 11 is driven slowly by any suitable means over a backing-plate 10, while the belt 12 stretched between pulleys 13, 14 is driven at constant speed by a motor 19 through a pin 16 and slotted disc 17. A stylus structure 23 comprising the stylus 20a and a brush 20g is carried by the belt and periodically drags them respectively across the record strip 11 and suitable co-operating electrical elements for actuating a transmitting circuit and for applying a marking potential to the stylus. The stylus structure 23 comprises the flat base member 25 of rubber or other relatively soft material stuck to the belt and having embedded in it a sheet metal piece 26 with three upturned edges constituting the three lugs 26a, 26b and 26c which detachably secure the spring wire stylus 20, normally shaped as shown in Fig. 4 but held by the lugs with the end sections 20a, 20g parallel and bearing lightly against the record strip 11 and the electrical element respectively.
Patent GB-1061135-A (GB)
Title: Method and circuit arrangement for code interrogation in d.c. signalling via lines
IPC: H04Q1/38
Filed: 1965-06-25
Abstract: 1,061,135. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. June 25, 1965 [June 30, 1964], No. 26998/65. Heading H4K. In the registration of digits keyed from a subset; voltages +UB, -UB being switched on the line at the register in response to an actuated key at the subset; it has been customary to maintain the interrogating voltage for a period beyond the time in which the line charges in order to provide a relatively stable line current to be measured; in this invention, however, the interrogating voltages are switched as soon as the line is charged substantially, a capacitor being connected to and disconnected from the line along with the interrogating voltage so as to preserve a record of line current without holding up further interrogation. As shown in Fig. 4, the legs a, b of a line from a subset with a keysender, can be switched to a voltage + UB by a relay P and to a voltage - UB by a relay R. Capacitors C4 and C8 take a record of current in the legs when +UB is connected and capacitors C3 and C7 take the corresponding records when - UB is connected. Sensing by the register is effected over leads AW. Capacitors C5 and C6 take records of the difference in voltage between the legs when the interrogating voltages are connected. In place of capacitors any analogue storage device may be employed.
Patent GB-627968-A (GB)
Title: Improvements in or relating to aluminium base alloys and method of making same
IPC: C22C21/10
Filed: 1945-10-16
Abstract: 627,968. Alloys. HOLZWORTH, E. H. Oct. 16, 1945, No. 27008. [Class 82(i)] An aluminium alloy of high physical properties contains zinc and magnesium, the percentages of zinc and magnesium being represented by an area on a graph having percentages of zinc and magnesium as ordinate and abscissa, this area being defined by plotting a curve a for the centre of the area according to the equation Y=KAx, where Y=per cent of magnesium, x=percentage of zinc between 3.6 and 12, A=0.85 and K=1.7, and then drawing two additional curves b and c spaced from the main curve by distances corresponding to 30 per cent more magnesium and 30 per cent less magnesium respectively than the proportion of magnesium indicated by curve a, but excepting from the said area that portion in which the percentage of magnesium is greater than 0.827. The remainder of the alloy is aluminium of not less than commercial purity with or without 0.15-1 per cent of titanium, beryllium or boron, from 0.5-1 per cent of chromium or nickel or a combination of any or all of these elements not exceeding 1 per cent in total. The aluminium used may contain not more than 1 per cent of silicon and copper as impurities. Manganese, lead and iron may also be present as impurities in the aluminium used.
Patent GB-1353138-A (GB)
Title: Apparatus for pressing or processing textile articles
IPC: D06F61/00
Filed: 1970-06-04
Abstract: 1353138 Ironing presses; treating textiles R P GUDGEON 2 Sept 1971 [4 June 1970 3 Dec 1970] 27042/70 and 57479/70 Headings D1A and D1L [Also in Division F2] A roller 2 of a rotary pressing apparatus for webs of material or garments comprises a hollow shaft 6 and a surface of a flexible porous or impermeable material secured at its ends to two spaced apart discs 7, 8 the apparatus including means to supply pressurised fluid medium through the hollow shaft 6, to the interior of the roller to expand the surface into a cylindrical shape. As shown the roller 2 further comprises a tubular perforated shaft 6 rotatable in bearings 24, 25, a rigid perforated cylinder 10 and a flexible sleeve 20. In Fig. 1 each permeable roller 2 cooperates with a rigid cylinder 1 and is supplied with compressed air or steam and the cylinder 1 may be perforated and connected to a vacuum source to draw steam through the articles being pressed. In Fig. 3 the rollers 1 cooperate with a moving belt 31 and the apparatus includes channels 35 for steam, hot or cold air or suction services. Steam ducts 36 which may be replaced by heaters are provided above the belt 31. The table 34 over which the belt 31 passes may be flat or convex in transverse section to spread articles being pressed.
Patent GB-224372-A (GB)
Title: Improvements in or relating to cranes or the like for the actuation of grabs
IPC: B66C3/10
Filed: 1923-10-30
Abstract: 224,372. Cramp, R. Oct. 30, 1923. Grab-machines.-The hauling cable for closing grab-buckets receives an intermittent hauling effort so that during the grabbing action the buckets have closing and lowering movements in rapid succession and bite more effectively into the soil. In one form pressure fluid is admitted and released in turn from the cylinder of hydraulic lifting gear, and in another form the head-sheave of the crane is moved rapidly up and down in guides whilst a continuous effort is applied to the hauling rope. Control-valve mechanism for the hydraulic cylinder is shown in Fig. 1. The valve 4 is adjustable longitudinally into four positions for hoisting, for grabbing, for holding, and for lowering. The valve is oscillated continuously by a motor 25 and when in the grabbing position as shown, the oscillating movements alternately admit the pressure fluid from 1<E> to a port 3 leading to the ram cylinder, and release the fluid from the ram cylinder through the ports 3, 3<a> to the exhaust 1G. This movement reciprocates the grab-buckets without closing them, but a combined reciprocating and hauling action for closing the buckets is effected by adjusting the valve so that the ports 3a are partially opened and the ports 3 completely opened during the oscillating movement of the valve. The hydraulic cylinder is mounted on the cranepost, the hauling cable passing over a block carried by the ram. In another form, the hydraulic cylinder is mounted on the rib near the head-sheave, and' the pressure fluid is supplied by a pump driven by an electromotor. In the form shown in Fig. 15, the spindle 37 of the head-sheave is mounted in slots on the jib and the sheave is moved rapidly up and down during grabbing by rams actuated as described above.
Patent GB-886100-A (GB)
Title: Improvements in photomechanical processes and materials therefor
Inventor: WAGNER HANS MAX
IPC: G03F7/008
Filed: 1957-08-29
Abstract: 6-Azido-2-(41-azidostyryl)-benzimidazole is prepared by reducing 2 : 4-dinitro-aniline to 3 : 4-diamino-nitrobenzene, treating this with acetic anhydride to give 2-methyl-5-nitro benzimidazole which is condensed with p-nitrobenzaldehyde to yield 6-nitro-2(41 nitrostyryl)-benzimidazole, reduction then gives 6-amino-2-(41 aminostyryl)-benzimidazole which is diazotized and treated with sodium azide.  6-Azido-2-(41-azidostyryl)-benzthiazole is prepared by nitrating 2-methyl-benzthiazole to the 6-nitro derivatives, condensing this with p-nitrobenzaldehyde to yield 6-nitro-2-(41-nitrostyryl)-benzthiazole which is reduced to the diamino derivative and this is diazotised and treated with sodium azide.  5-Azido-2-(41-azidostyryl)-benzoxazole is prepared by nitrating 2-methyl-benzoxazole to 2-methyl-5-nitrobenzoxazole and this is condensed with p-nitrobenzaldehyde and the azide is formed from the product by reduction, diazotisation and sodium azide treatment as above.  Specification 767,985 is referred to.
Patent GB-1219035-A (GB)
Title: Improvements in hair dyes
IPC: C09B27/00
Filed: 1969-05-29
Abstract: 1,219,035. Hair dyeing compositions. THERACHEMIE CHEMISCH - THERAPEUTISCHE G.m.b.H. 29 May, 1969 [30 May, 1968], No. 27279/69. Heading D1B. An agent for dyeing human hair comprises a heterocyclic hydrazone, or a salt thereof with an inorganic or organic acid, or a reaction product thereof with an organic acid chloride and a coupling component known per se for oxidation dyes. In particular the hydrazones may be of formulae I or II in which a, b, c and d each represent hydrogen or an alkyl residue of 1-4 carbon atoms or an aromatic or functional group (e.g. amino nitro, halogen, alkyl, mono- and di-alkylamino groups) or a and b and c and d may form a condensed alicyclic or aromatic ring which may be substituted, R is an aliphatic residue, X is an atom or group closing an aromatic or non-aromatic 5- or 6-membered ring, e.g. oxygen, sulphur, =NH, -CH 2 - or -CH =CH-. The coupling component may be an aromatic hydroxyl- and/or amino-group containing compound or a compound with an active methylene group. Oxygen, e.g. from the air or a chemical oxidant, e.g. H 2 O 2  is used to oxidise the reactants in the hair, addition products of H 2 O 2  with urea, melamine and sodium borate may also be used.
Patent GB-174132-A (GB)
Title: Improvements in corner fittings of bedsteads, cots, and mattresses
IPC: F16B12/58
Filed: 1920-09-25
Abstract: 174,132. Price, C. H., and Atlas Bedstead Co., (trading as Wilkes & Sons, Ltd., S.). Sept. 25, 1920. Joints for bedsteads &c. A lug 3 carrying a stud or equivalent 6, and having a vertical face acting as an abutment for the flange 8 of an angleiron member, together with a slot 17<a> forms a secure anchorage for the flange 19 of a second angle-iron member. The slot may be made deeper at the sides than in the middle, as shown in Fig. 9, an opening 40 being provided in the flange to engage the part 51. A square 41 to engage the openings 42 may be provided and the nut 35 may be recessed as shown at 36. A ridge or lip 33 may be provided on the lug, and the stud 6 may be formed with a slot and wedge instead of being threaded.
Patent GB-365053-A (GB)
Title: Improvements in or relating to wave filters
IPC: H03H7/01
Filed: 1930-09-12
Abstract: 365,053. Filter circuits. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Germany. Sept. 12, 1930, No. 27311. Convention date, Oct. 14, 1929. Addition to 364,561. [Class 40 (iii).] Fig. 24 of the parent Specification shows a filter comprising two sets of branches X1, X2, and X3, X4, the two sets being connected in opposition and each comprising two inverse impedances (such as an inductance and a condenser) in series and having a transmission range different from those of the other branches but the same geometric mean of cut-off frequencies as theirs. According to the present invention, a separator for multipled working comprises several such filters, the input terminals for all the filters being those I<1>, II<1>, of the transformer primary p while all the filters have as a common output terminal the centre tapping I of the secondary s. The remaining output terminal is II for the first filter, III for the second, and so on.