baber/WOPTO huggingface dataset:
Patent GB-308942-A (GB)
Title: Improvements in and relating to welting and method of making the same
IPC: A43B15/00
Filed: 1928-08-07
Abstract: 308,942. Barbour, P. E., (Assignee of Gilson, L. H.). April 19, 1928, [Convention date]. Welts and welting. - A single strip of welting material of approximately twice the required width is folded about a central weakened portion on the flesh side and the two meeting faces are stuck together to make a " heavy edge " welt. A stitch - receiving groove 17 is made in the lower iace of the welt and the inner edge of the upper layer 14 is preferably bevelled at 18 to reduce the thickness of material through which the inseam stitches pass. These stitches pass through both layers of the welt, as shown. The weakened portion may he made by channelling a double V- or W-shaped groove with the central apex below the level of the flesh side, or by making an open V-shaped groove. The layers after being cemented together are rolled to mould to some extent the inner edge. The grain is buffed from the exposed face of the under layer 16 before attachment of the welt to the outsoles 30, by cement, and outseam 32.
Patent GB-1094537-A (GB)
Title: Centrifugal casting
Inventor: SHEWMON DANIEL CENTER
IPC: B22D27/06
Filed: 1965-05-28
Abstract: 1,094,537. Centrifugal-casting processes; treating castings. BABCOCK & WILCOX CO. May 28, 1965 [June 2, 1964], No. 22793/65. Heading B3F. In centrifugal casting of a hollow article such as a pipe, heat is transferred to the inner surface of the casting during rotation of the mould to retard solidification and permit impurities to escape through that surface. Fluent material (such as a molten mixture of borax and soda-lime glass or a refractory material in a finely-divided solid state) of comparatively low specific gravity and at a temperature above the solidification temperature of the casting metal, is used to supply the heat. The fluent material may be preheated or heated after introduction. Its temperature may be maintained by the introduction of hot gases into the mould and it may be supplied to the mould before, after or with the molten metal. Solidified glass may be separated from the casting by spraying it with cold water or by striking the cooled casting.
Patent GB-224993-A (GB)
Title: Improvements in electric switch mechanism
IPC: H02B7/06
Filed: 1923-09-12
Abstract: 224,993. Nijland, H. A. H. Sept. 12, 1923. Switchboards. -polyphase high potential substations are constructed so that all the components of the station, such as the isolation switches, oil switches and transformers, relating to one phase are substantially in one horizontal plane, the components of the other phases are in parallel planes, and the corresponding parts of different phase lie perpendicularlv one above another. Complete units are constructed, adapted to be set up adjacent to each other, each unit comprising isolation and oil switches with or without transformers, all contained in one box. The Figure shows such a unit adapted for three-phase current. The isolation switch comprises blades 11 on a rotatable shaft 15, the oil switch comprises fixed contacts 8 bridged by contacts 9 on a rod 18, part of which is broken off in the Figure, to show the open position of the switch. 7 are the transformers. The switches are operated from outside the box and interlocked. The box enclosing the switches may be of metal or concrete.
Patent GB-715828-A (GB)
Title: Improvements in explosive mixtures
IPC: C06B31/04
Filed: 1951-10-02
Abstract: 715,828. Gunpowder compositions. BOWDEN, F. P., and BLACKWOOD, J. D. Oct. 1, 1952 [Oct. 2, 1951], No. 22966/51. Class 9(2) A black powder which usually contains charcoal. a nitrate, e.g. potassium nitrate, and sulphur, has a 70 per cent carbon charcoal and a low melting- point mixture, e.g. a eutectic mixture, of alkali metal, nitrates as the nitrate constituent. The mixtures may be 54 per cent potassium nitrate, 30 per cent lithium nitrate and 16 per cent sodium nitrate, or 55 per cent potassium nitrate and 45 per cent sodium nitrate, and are used in black powder consisting of 75 per cent of the mixture of nitrates. 15 per cent alder charcoal (70 per cent carbon) and 10 per cent ground roll sulphur.
Patent GB-155892-A (GB)
Title: Improved internal combustion engine
IPC: F02B75/26
Filed: 1919-09-19
Abstract: 155,892. Shaw, C. M. Sept. 19, 1919. No Patent granted (Sealing fee not paid). Driving-gear; cylinders, cooling.-Engines with four, eight, or twelve cylinders have the piston rods K of opposing cylinders A connected to opposite corners of a square frame D adapted to rock on a pivot E through 90‹ at every stroke, a third corner of the frame being connected to the rod G driving the crank-shaft, and the fourth carrying a balance weight H. The two cylinders shown in Fig. 1 are arranged level with the connecting-pins J when the pistons are at the end of their stroke. The remaining two cylinders in the case of a four-cylinder engine are arranged in a plane parallel to that of the two shown, so that adjacent pairs of cylinders on the same side of the engine casing are either at the same level or one higher than the other; in the first case, the piston-rods of the two cylinders on the same side are connected to the same corner, and in the second case they are connected to opposite corners of the frame. The valve gear is arranged so that the crank-shaft gets an impulse at every half-revolution. The fly-wheel has vanes so that it drives air through a cowl surrounding the cylinders; the vanes are fixed on a reduced part of the fly-wheel to avoid injury by obstacles on the road. An oilpump is attached at 16.
Patent GB-506411-A (GB)
Title: Improvements in and relating to plastic compositions and articles and method of making the same
IPC: D21C5/00
Filed: 1937-08-24
Abstract: 506,411. Cellulosic material. AUCHTERLONIE, A. Ji. Aug. 24, 1937, Nos. 23166, 23167, and 23168. Void. Convention dates, Aug. 31, 1936, May 10, 1937, and May 10, 1937. [Classes 2 (ii) and 2 (iii)] The pithy non-fibrous portion of annual plants, e.g. flax, hemp, okra is treated, e.g. by a mild soda cook to remove gummy and ligneous substances while maintaining the natural absorptive properties of the material unimpaired. The material may be bleached with sodium or calcium hypochlorite. Waste hurds or stalks from flax and hemp are suitable raw material. The finished product is substantially pure alpha-cellulose and may be formed.into sheets on a paper-making machine, beating, sizing, calendering or other heavy pressure being avoided. The formed paper is transferred to an apron or sheet and heated until sufficiently coherent to retain its sheet form and then carefully dried avoiding overheating or excess pressure or friction. The paper may then be ,smoothed by passage between a pair of feltcovered rollers with slight' steaming. The material due to its high absorption powers is particularly suitable for impregnation by resinous substances, or for nitration or acetylation, nitrates or acetates of very low viscosity being formed. Colour may be added to the resin impregnated sheets if desired, and a number of sheets may be superimposed and consolidated by heat and pressure. The sheets may be printed before impregnation and a final water resistant coating of a phenol resin may bo applied. Metal inserts may be applied between the resin impregnated sheets before consolidation. The pithy material may be employed as a filler for resinous compositions without. prior formation into sheets. Details of a nitration and acetylation treatment are given in the Specification.
Patent GB-653995-A (GB)
Title: Improvements in and relating to welding apparatus
IPC: B08B15/00
Filed: 1948-09-02
Abstract: 653,995. Confining dust on generation. WHITE, CHILD & BENEY GES. Sept. 2, 1948, No. 23177. Convention date, Feb. 21, 1939. [Class 8(ii)] [Also in Group XXII] A welding table comprises a suctior chamber consisting of a prismatic frame 3 having an enlargec top portion 2 covered by a flat perforatec plate 4 which sup ports the work, and a source of vacuum connected to the chamber draws air and fumes from the outer surface of the plate. A fan 6 driven by an electric motor 9 is disposed laterally under the plate 4 adjacent to the chamber, the wall 7 of which forms a lateral abutment for the fan 6. The bottom of the chamber is accessible through an opening 11 for the removal of waste welding material. A ledge 5 is provided at the rear of the table surface.
Patent GB-1036635-A (GB)
Title: Beryllium copper based alloys and method of producing green compacts and sintered articles therefrom
IPC: C22C1/04
Filed: 1963-06-12
Abstract: In a process of forming sintered body of copper beryllium, a powder of a copper based alloy containing beryllium is mixed with copper powder, the mixture is compacted at a temperature below sintering and finally sintered. The beryllium content of the sintered body ranges from 0.4%-3.6% and may also contain up to 0.5% of cobalt and/or nickel. The starting mixture consists of 10%-90% of the copper based alloy and the balance copper powder which has an apparent density of 1.7 to 2.2 gm/cc. and at least 80% is minus 325 mesh. The mixture is compacted at 5-100 t.s.i. or it may be roll compacted into green strip. Sintering is carried out at 1500 DEG F.-1750 DEG F. in hydrogen, cracked ammonia, hydrocarbon gas, carbon monoxide, inert gas or vacuum. The sintered body may be cold rolled or hot worked, and heat treated.
Patent GB-605884-A (GB)
Title: New or improved work holder or work plate of the sine bar type
IPC: G01B5/24
Filed: 1945-09-11
Abstract: 605,884. Work-holders. HANCOCK, W. A. 'Sept. 11, 1945, No. 23386. [Class 83 (iii)] [Also in Group XXIII] In a work-holder of the sine bar type, having a work-table angularly adjustable by a worm on a shaft mounted in the base-plate and engaging a worm-wheel keyed to the worktable hinge, the work-table is recessed along its front and rear edges to receive an abutment rod and a bearing rod forming the hinge. A work-table g carries an abutment rod l in a recess along one edge and, in a recess along the other edge, a spindle rod k pivoted on bearing brackets c on a base-plate a having slots f for bolting it to a machine table; side play in the bearings may be taken up by thrust washers held by bolts screwing in the ends of the spindle h. The bearing brackets are held by bolts o in grooves b and are split at c<SP>1</SP> so that the spindle can be clamped in the adjusted position by bolts n. A worm-wheel k is keyed to the spindle and engages a worm d<SP>1</SP> on a shaft d centrally disposed in the base-plate. The shaft has a flange d<SP>2</SP> at one end and, keyed to it at the other end, a threaded collar p which carries a clamping ring q and nut r and has keyed to it a knurled knob s secured by a bolt t. For supporting the work-table at angles near the perpendicular, when adjusted with the aid of sine tables or by indicating means that may be provided to show the position of the worm shaft d or spindle h, one or two sets of overlapping slotted links v, vl, Fig. 6, may be provided, pivoted on pins x and w screwed into the abutment rod and base-plate respectively and clamped by nuts x<SP>1</SP>, w<SP>1</SP>. The links are connected by a block y sliding in the slot of link v<SP>1</SP> and having a pin y<SP>1</SP> carrying a clamping nut z.
Patent GB-1072510-A (GB)
Title: Alloy steels
IPC: C22C38/44
Filed: 1966-05-26
Abstract: A weldable cast steel has the following percentage composition:- .C.up to 0.08 .Si.0.25 - 0.5 .Mn.0.45 - 1 .S.up to 0.02 .P.up to 0.03 .Cr.11.5 - 13.5 .Ni.0.8 - 2 .Mo.0.4 - 1.5 .Fe.the remainder
Patent GB-715247-A (GB)
Title: Improvements in grinding machine with crush wheel dressing mechanism
IPC: B24B53/00
Filed: 1952-09-19
Abstract: 715,247. Control of several motors. BRYANT CHUCKING GRINDER CO. Sept. 19, 1952 [Oct. 5, 1951], No. 23603/52. Class 38(3) [Also in Group XXIII] Six motors 1M ... 6M, Fig. 18, for driving certain parts of a grinding machine (see Group XXIII) are controlled by switches and relays in a lowvoltage control circuit so as to provide for automatic operation of the machine. The closure of switches 270, 285, Fig. 18, serves to energize through controls 2m, 4m the high-speed motor 2M for driving the grinding wheel, and the motor 4M for driving a cam shaft which controls the movement of the grinding wheel carriage to and from operative positions. Further cams on this cam shaft act through switches LS4, LS6, control 5m, 6m and relay CR2 to start the work-spindle motor 5M, open a clutch between the motor 4M and the cam shaft, and energize a motor 6M for driving a second cam shaft controlling the feed movement of the work carriage. The second cam shaft, towards the end of one revolution, operates switches LS7, LS12 and relays CR1, CR2 to re-engage the clutch for the drive of the first cam shaft and stop the drive of the second cam shaft. The two cam shafts combine in alternate operation to provide for a number of grinding cycles until a pre-set counter CNTR, which is engerized once every revolution of the first cam switch by the actuation of the switch LS8, records the number of grinding cycles for which it has been set. The counter then acts through a switch 336 to stop the grinding- wheel motor 2M and through a switch 335, relay CR2, CR4, and control 3m to stop rotation of the main cam shaft, open switch 312 to prevent operation of the motor 6M, and start the motor 3M for driving a cam shaft controlling mechanism for dressing the grinding wheel. A cam on this cam shaft also acts through a flexible cable 88, Fig. 15, to actuate a clutch whereby the grinding wheel is then driven by a low-speed motor 1M. This cam shaft is effective at the end of one revolution to render the dressing mechanism inoperative, restore the high-speed drive of the grinding wheel re-set the counter C to zero and stop the motors 1M, 3M with the parts in their initial positions. The motor 7M is started at the beginning of an operation to circulate lubricant and coolant. The low-speed motor 1M, Fig. 15, is disposed on the casing 2a of the high-speed motor 2M, upon. the armature shaft 3 of which the grinding wheel 3 is mounted. The motor 1M has a belt-and-pulley drive 51 with a hollow shaft 54 which is journaled in the end wall 58 of the casing and is mounted at its inner end with a spider 60 carrying pivoted friction shoes 62 urged by springs 63 against a pulley 67 on the shaft 3 when the motor 2M is de-energized. When the motor 2M is energized, the friction shoes are rendered inoperative by pins 73 forced outwardly of the spider by a coaching pin 70 which is moved axially in the shaft 54 by a lever 75 operated by the cam-controlled flexible cable 88. Specification 684,914 is referred to.
Patent GB-258892-A (GB)
Title: Improvements in wall plugs
IPC: F16B13/12
Filed: 1926-09-24
Abstract: 258,892. Sigetter, V. Sept. 26, 1925, [Convention date]. Screw sockets.-A screw socket is constructed from a sheet-metal blank bent to form a central portion b having a hole for the screw, two converging portions a and two parallel portions e having turned up ends g which engage the sides of a surrounding hole in a wall &c. when the parts e are forced apart by a screw. The strengthening side-ribs f are provided with teeth, and curved depressions h are formed in the parts a for guiding the screw. The central part b may be made separately in the form of a cap in which the parts a engage.
Patent GB-686483-A (GB)
Title: An improved mounting for electric lamps
Inventor: HADRILL GEORGE COPLAND TEMPLE
IPC: F21V21/26
Filed: 1950-09-27
Abstract: 686,483. Stands and brackets for lamps. HADRILL & HORSTMANN, Ltd. April 18, 1951 [Sept. 27, 1950], No. 23663/50. Classes 52(iii) and 52(v) In an electric-lamp mounting in which a counterweighted parallel linkage 12, 13, 14, 18 is pivoted at an intermediate point of links 12 to a support 11, the support 11 is mounted for rotation about a vertical axis in a base 10, is curved forwardly and upwardly in a semicircle and is bifurcated at its upper end, the link 12 being pivoted between the bifurcations 11a. Links 12, 14 may be square section tubes to accommodate the electric cable. The lamp is secured to the mounting as described in Specification 615,384. According to the Provisional Specification, the lamp may be replaced by a mirror or the like and the base may be replaced by a clamp.
Patent GB-1091522-A (GB)
Title: Improvements in or relating to oil burner arrangements
Inventor: BULLOCK GEOFFREY JAMES
IPC: F23N5/04
Filed: 1963-07-14
Abstract: 1,091,522. Control of A.C. motors. LANDON KINGSWAY Ltd. June 12, 1964 [June 14, 1963], No. 23795/63. Heading H2J. [Also in Division F4] An A.C. motor 11 supplying fuel to a burner is braked, when the A.C. supply is switched off, by a D.C. supply. The motor is controlled by a time switch 14 and a bi-metal switch 15 which opens when a boiler or air heater heated by the burner reaches a predetermined temperature. The opening of the bi-metal switch 15 also deenergizes a relay 18 causing contacts 19 to close to supply the motor through a time delay switch 26 and a rectifier 24. The switch 26 opens after a predetermined time and is incorporated in the bi-metal switch 15. The D.C. supply is also controlled by a switch 23 actuated by a cam 24 on a synchronous motor 21.
Patent GB-993446-A (GB)
Title: Process and apparatus for the development of latent electrostatic images
IPC: G03G15/10
Filed: 1963-06-14
Abstract: 993,446. Liquid development process. KALLE A.G. June 14,1963 [June 22,1962], No. 23842/63. Headings G2A and G2H. A process for the development of latent electrostatic images comprises traversing a sheet containing a latent electrostatic image across a rotatable roller carrying a surface film of developing liquid, the sheet being presented to the roller in the direction of a chord of the roller and being deflected in the direction of a tangent to the roller and then being guided by a support in the tangential path. As shown, a sheet is fed by rollers 5 over a wetting roller 13, to wet the back of the sheet, and then to a roller 1, having a film of developer thereon, so as to strike the roller along a line 16. The roller deflects the sheet along the tangential line 16a and the surface of the sheet is brought into contact with the developer. The angle # between the lines 16 and 16a may be 0. 5 degrees to 45 degrees. The feeding of the sheet along the line 16a may be continued by an edge 10 of a support 8. If the edge 10 is situated closer to the roller the sheet may be deflected along a line 9 making an angle α. If 0.1 degrees to 5 degrees, with the line 16a. The fixed support 8 may be replaced by a roller, Fig. 3 (not shown). In a modification, Fig. 5, the sheet may be fed to a roller 30 which is lifted from a seating 37b on a hopper 38, holding developer, by the sheet. The roller 34 may be replaced by a roller of small diameter Fig. 6 (not shown).
Patent GB-1435872-A (GB)
Title: Method for the preparation of organosilylamines
IPC: C07F7/10
Filed: 1974-05-29
Abstract: 1435872 Removing ammonium halides from organosilylamines SHINETSU CHEMICAL CO 29 May 1974 [29 May 1973] 23858/74 Heading C38 Organosilylamines are obtained by reaction of R 3 SiX, wherein each R is a C 1-8  hydrocarbon group or two together may form, with Si, a ring and X is a halogen atom, with R<SP>1</SP> 2 NH, wherein each R<SP>1</SP> is H or a hydrocarbon group, in an organic solvent, and contact of the reaction mixture with aqueous alkali metal hydroxide solution containing the hydroxide in molar excess over the halide salt in the mixture to dissolve the said salts, and separation of the reaction mixture from the aqueous alkali. In Example 1, into 2 moles of Me 3 SiCl in nhexane are passed 3 moles of NH 3 , and the product is added to 407 g. of 6À3 N NaOH (2À05 moles) the product being (Me 3 Si) 2 NH. In further examples otherwise similar: the silane used is ViMe 2 SiCl, PhSiMe 2 Cl, EtMe 2 SiCl, or PrMe 2 SiCl (Examples 2-6); the solvent is benzene, (Me 3 Si) 2 NH or (Me 3 Si) 2 O (Examples 7, 8 and 18); the amine is MeNH 2 , Me 2 NH, EtNH 2  or PrNH 2  (Examples 14-17); and the alkali is KOH, 0À57 N LiOH, 2N or 8N NaOH, or larger amounts of 6N NaOH (Examples 9- 13, 16 and 17).
Patent GB-382013-A (GB)
Title: Improvements in and relating to gramophone accessories for facilitating needle changing
IPC: G11B3/54
Filed: 1931-08-25
Abstract: 382,013. Gramophone needle receptacles. WALTER, W. J., 24, Southwick Street, London. Aug. 25, 1931, No. 23869. [Class 40 (ii.).] Needle changing in gramophones is facilitated by providing a receptacle 10 having a cork &c. cover 13 into which needles 16 are stuck, the cover having an aperture, so that by placing the receptacle in the return path of the sound box or pick-up the used needle may be released when the needle holder is supported by the edges of the aperture and thus fall into the receptacle : the needle holder 19 may then be moved over one of the needles 16, which is then clamped by the usual screw 20. The receptacle may be covered with plush and used for cleaning and polishing the record.
Patent GB-687376-A (GB)
Title: Improvements in or relating to distorting amplifiers for use in television systems
Inventor: HAYDEN-PIGG GODFREY EDMUND
IPC: H04N5/202
Filed: 1950-09-29
Abstract: 687,376. Non-linear valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 15, 1951 [Sept. 29, 1950], No. 23940/50. Class 40 (vi). A television signal with positive-going synchronizing pulses is fed to the grid of a valve V<SP>1</SP> with negative feed-back, amplified signals being supplied over a rectifier D<SP>2</SP> to the grid of valve V<SP>2</SP> to reduce the negative feed-back and cause positive feed-back during the synchronizing pulses, a further rectifier D<SP>3</SP> applying bias to valve V2 to distort the signal when a predetermined level of video signal is reached. The circuit is particularly adapted for increasing the amplitude of the synchronizing pulses and the gain of components near the black and white levels. Resistor R<SP>2</SP> in the cathode lead of valve V<SP>1</SP> provides negative feed-back, the valve V<SP>2</SP> acting as a resistance since the grid is tied to the cathode over the low resistor R<SP>3</SP>. The signal from the anode of V<SP>1</SP> is fed to the grid of valve V<SP>3</SP>, the synchronizing pulses causing diode D<SP>2</SP> to conduct, carrying the grid of valve V<SP>2</SP> negative. In this manner, the cathode of valve V<SP>1</SP> is driven negative so that the synchronizing pulses are increased, the valve V<SP>2</SP> being driven beyond cut-off. During the video part of the signal, the input is negative-going causing the cathode of valve V<SP>2</SP> to fall. Near the maximum negative amplitude biased diode D<SP>3</SP> conducts to hold the grid potential of valve V<SP>2</SP> constant, thus reducing the negative feedback operating on valve V<SP>1</SP> due to the common cathode resistor R<SP>2</SP>. Similarly the diode D<SP>1</SP> may be caused to conduct for lower amplitudes of the video signal.
Patent GB-381671-A (GB)
Title: Improvements in spectacle frames
IPC: G02C5/02
Filed: 1931-08-26
Abstract: 381,671. Spectacles. EGLINTON, W, D., 100, Lower Addiscombe Road, Croydon. Aug. 26, 1931, No. 24032. [Class 97 (i).] In a spectacle frame of tortoiseshell &c. having a metal &c. reinforcement in the bridge, the reinforcement consists of a blank 2 which is preformed to the shape of the bridge 1, and the spectacle frame is constructed of two blanks which are pressed together with the blank 2 inserted between them, the whole being then Amalgamated into an integral structure.
Patent GB-140331-A (GB)
Title: An improved process for granulating cyanamide
IPC: C05C7/02
Filed: 1919-10-01
Abstract: Calcium cyanamide is broken up to about the size of an egg, then steeped in water or sprayed with water to destroy carbide, and then crushed to small granules, and the granules are then agitated with the fine powder produced in the crushing operation so as to coat and dry the granules, which are finally classified by sieving.