baber/WOPTO huggingface dataset:
Patent GB-709053-A (GB)
Title: Improved device for containing and dispensing self-adhesive tape
Inventor: DONKIN WILLIAM HARRY
IPC: B65H35/00
Filed: 1952-08-14
Abstract: 709,053. Tape dispensers. OFREX, Ltd. Aug. 14, 1952, No. 20496/52. Class 18 An adhesive tape dispenser comprises a cylindrical casing 1 enclosing a reel of the tape and supporting it on a central cylindrical member 3 through which extend two spring fingers 18 so as to retain a cover 2 on the casing by the outwardly turned ends 19 of the fingers engaging the outer face of the casing. An opening is provided in the side wall of the casing through which the tape may be withdrawn and is closed by a pivoted segmental part 4 having a sector portion 8 secured to ut and arranged to slide against the outer face of the casing. A slot 9 is provided in the sector portion 8 to limit movement of the part 4 by engagement with projections 10, 11. The edge of the part 4 is serrated to provide a cutting edge for the tape, and a projection 15 is provided on the side wall of the casing to shield the cutting edge when the part 4 is closed.
Patent GB-530429-A (GB)
Title: Improvements in or relating to photographic cameras provided with light sensitive devices and adapted to employ interchangeable objectives
IPC: G03B7/20
Filed: 1939-07-14
Abstract: 530,429. Photo-electric control or indication of photographic exposure. KODAK, Ltd. July 14, 1939, No. 20521. Convention date, July 14, 1938. [Class 40 (iii)] [Also in Group XX] A photographic camera includes a lever which projects under spring action from the camera body through the lens opening and controls the output of a light-sensitive device, the lever being moved in a direction substantially parallel to the axis of the interchangeable lens mount by a sleeve carried by the mount and operated by the diaphragm-setting member. In the construction shown, the rotary contact arm 18 of an adjustable resistance in the circuit of a photo-electric cell 12 is operated through a rack and pinion by a spring-pressed lever 20 having an arm 24 which projects into the mount of the objective and contacts with the rear end of a sleeve 60 rotatably and longitudinally adjustable in the mount. The sleeve is rotated by a tongue 63 secured to the diaphragmadjusting ring 51 and projecting into a slot 62 in the front end of the sleeve, and a pin 46 engaging a cam slot 64 produces a corresponding longitudinal movement of the sleeve which operates the lever 20 to adjust the resistance. The sleeve 60 for adjusting the resistance in the photo-electric cell circuit is mounted in the focusing sleeve 36 and the pin 46 which engages the cam slot 64 in it is fixed to an offset ring 32 screwed on the end of the stationary ring 29. The pin 46 passes through a slot in the sleeve 36, which it thus limits to axial movements. In a modification, the sleeve 60 has rotational movement only, its rear edge being 'formed with a cam surface engaged by a lever operating an adjustable baffle which regulates the light passing to the cell, as described in Specification 521,083, [Group XX]. The meter may serve to indicate the correct adjustment of the shutter speed, or to adjust the speed automatically, as described in Specification 520,955, [Group XX].
Patent GB-722226-A (GB)
Title: Ammunition feed mechanism for automatic guns
IPC: F41A9/29
Filed: 1952-08-15
Abstract: 722,226. Automatic firearms. VERWALTUNGSGES DER WERKZEUGMASCHINENFABRIK OERLIKON. Aug. 15, 1952 [Aug. 18, 1951], No. 20560/52. Class 92(2). An endless conveyer belt 10, for conveying ammunition from a magazine 11 to guns 6, is of resilient construction and feeds the cartridges to a collector 40 which strips the cartridges from the belt and guides them towards the guns, the arrangement being such that the belt becomes compressed between a driving sprocket 33 and the collector and forces the cartridges in the collector towards the gun. In the construction shown, the empty belts are replenished from magazines 11, are tensioned by spring-mounted pulleys 28, are driven by motors 26 via sprockets 24, 25 and are guided by guides 32. Each belt comprises a plurality of cartridge holders 14, fitted with cartridge clips 17 and interconnected with longitudinal play, by slotted links 15. Sleeves 20 are secured to the ends of the holders and coact with springs 16 which may, as shown, each extend over several sleeves or may each extend between two adjacent sleeves. The sprocket 33 is driven by a separate motor as shown in Fig. 5. When a shot is fired, a lever 47 actuated by the gun is rocked to rock a pawl carrier 42 whose pawls 43 advance the rounds in the collector, and another round from the compressed belt is fed into the collector, the rounds being stripped from the belt by a wall 37a of the collector. In a modification the pawl and pawl carrier arrangement is dispensed with, and in another modification a single belt feeds two collectors. Fig. 13 (not shown) illustrates a spring-controlled pawl device for ensuring that the belt correctly passes over the sprocket 33, and Fig. 15 shows a modified clip which includes a part 52 which is rocked by a part 52a on the collector 40 to release the cartridge.
Patent GB-499183-A (GB)
Title: Improvements relating to self-locking nuts and like screw-threaded members
IPC: F16B39/32
Filed: 1938-07-12
Abstract: 499,183. Locking nuts. SIMMONDS DEVELOPMENT CORPORATION, Ltd. July 12, 1938, Nos. 20620 and 20621. Convention dates, July 27, 1937 and Feb. 14, 1938. [Class 89 (i)] A device for locking nuts comprises a spring wire 5 passed through an axial channel 4 in the nut 1 and provided with top and bottom terminal arms 6, 7, the tips of which engage the thread of the bolt. The arms 6, 7 are located in recesses 2, 3 cut in the nut and locking action is obtained by tensioning of the wire spring by one of the arms engaging against the edge of the recess. In a modification, only one of the arms is long enough to engage the thread.
Patent GB-745845-A (GB)
Title: Improvements in or relating to protective arrangements for electric motor control systems
Inventor: WOLSTENHOLME HARRY
IPC: B60L3/00
Filed: 1953-07-24
Abstract: 745,845. Control of several D.C. motors. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. July 1, 1954 [July 24, 1953; Sept. 21. 1953], Nos. 20657/53 and 26023/53.. Class 38(3) Relates to a protective arrangement for a traction system in which a main motor MM has one or more auxiliary motors AM in parallel therewith and is connected to the supply through an individual contactor LS1, the speed of the main motor being governed by a master controller for progressively varying resistance in the motor circuit. When a reversing drum RD is moved to an operative position with a speed drum SD in its "off" position, a lowcurrent relay LCR is energized through its coil 8, and auxiliary relay AR closes contacts AR1. When the speed drum is moved to its first position, contactor coil LS becomes energized to close contacts LS1. Movement of the speed drum to a higher position causes the auxiliary relay to drop out but the contactor LS is held in by contacts LS2. The pick-up coil 8 is open-circuited in the higher positions of the drum SD, the relay LCR remaining closed, however, by virtue of motor current passing through coil 7. Upon failure of the supply voltage, relay LCR drops out to de-energize the main contactor, and. although the motor AM may act as a generator, no current passes through coil 7. to delay the opening of relay LCR. Re-establishment of the supply voltage may re-close the lowcurrent relay but the main contactor is' not closed until the drum SD is returned to its "off" or first position. In a modification, the auxiliary relay is given a delayed release characteristic and its operating coil is connected directly to the negative terminal of the low-tension supply.
Patent GB-571870-A (GB)
Title: Improvements relating to unidirectional microphones
IPC: H04R1/38
Filed: 1943-12-10
Abstract: 571,870. Microphones. KOLB, O. K. Dec. 10, 1943, No. 20688. [Class 40 (iv)] A unidirectional condenser microphone comprises a single diaphragm 2 facing a backplate 5 which is so constructed that the centre zone of the diaphragm is responsive to pressure and the peripheral zone to pressuregradient. As shown, the backplate has closely-adjacent cupshaped recesses 10 at its centre zone and widely-spaced passages 11 at its periphery. The diaphragm 2 is preferably domeshaped as described in Specification 571,778.
Patent GB-382278-A (GB)
Title: Improvements in visible index
IPC: B42F17/28
Filed: 1931-07-20
Abstract: 382,278. Double hinges. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Yarman & Erbe Manufacturing Co. ; Rochester, New York, U.S.A.) July 20, 1931, No. 20690. [Class 65 (ii).] Visible card index trays a, Fig. 1, are connected by detachable hinge fastenings which allow the trays to fold down on to one another when not in use, and lie between the trays in the closed position so as to prevent lateral movement thereof. The trays are provided with beaded edges a<3>, a<4>, Fig. 1, and prongs c, Fig. 8, on hinge members c<2> are inserted in the adjacent beadings a<4> to connect the trays together. Spring- pressed pins b, Fig. 4, mounted in the beadings on the upper and lower edges hold the members c<2> in place but permit of their removal when desired. In the closed position the part c<3> lies between the trays and prevents contact and relative movement between the trays. Where an assembly of more than two trays is required, it is necessary to secure pairs of trays a back-to-back and hinge additional trays thereto.
Patent GB-404703-A (GB)
Title: Improvements in mitts, gloves and the like for bath and like purposes
IPC: A47K7/02
Filed: 1932-07-22
Abstract: 404,703. Bath gloves. GILDER, L., Sentinel House, Southampton Row, London. July 22, 1932, No. 20694. [Class 141.] Mittens and gloves for bath, massage, and toilet purposes are made with the exterior surface of the palm or back or both wholly composed of spongy or blown rubber. The articles may be made of one, two, or more sections of material having one or both surfaces of spongy rubber and the edges bound with fabric ; a lining of rubber or fabric may be added. They may be with or without fingers or plain bag-like without fingers or thumbs.
Patent GB-1182824-A (GB)
Title: A Process for Preparing Unsaturated Aldehydes.
Inventor: UDA KAZUO
IPC: C07C45/34
Filed: 1967-05-04
Abstract: 1,182,824. Oxidation catalysts. DAICEL Ltd. 4 May, 1967, No. 20709/67. Heading B1E. [Also in Division C2] Metallic oxide catalysts of the empirical formula: Fe a  As b  Mo c  Bi d  O e  wherein a is 0.5 to 15, b is 0.1 to 10, c is 12, d is 0.2 to 10 and e is 37 to 99 optionally supported on chemically inert carrier materials such as alumina, silicon, carbide, corundum or, preferably, silica are prepared in conventional manner by mixing aqueous solutions or suspensions of the components, drying the mixture and calcining the product which may be pelleted and further crushed to a screen size of 8-30 mesh (Tyler-sieve).
Patent GB-1472475-A (GB)
Title: Guttering
IPC: H01H13/38
Filed: 1974-05-10
Abstract: 1472475 Toggles; spring units BK PATENT DEVELOPMENT Inc 10 May 1974 [14 May 1973 23 Nov 1973] 20711/74 Headings F2K and F2S [Also in Division H1] The blade 4 of Figs. 1 and 2 is stressed by a bolt 22 so that it has two stable positions, downward movement of the inner arms 12, 14 by actuator 42 applied to cantilever 36 causing the blade to snap upwards to break contact with stop 44 and make contact with stop 46, a spacer (34, Fig. 3, not shown) being provided between the cantilever 36 and the arms 12, 14 to allow the blade to flex and electric contacts being provided (Fig. 16, not shown) on one or both stops and on the blade for use as an electric switch. Further embodiments include one in which the cantilever is replaced by a push button (Figs. 5 to 7, not shown), one in which the arms 12, 14 are mounted on an arm (82, Figs. 13 to 15, not shown) and the stops are mounted on the cantilever, and one in which the contacts are mounted on a T-shaped extension of the end 10 of the blade. An embodiment using an alternative form of blade is shown in Fig. 22; this can be actuated by a single actuator 190, or by two actuators 190, 192 as shown. The stops can be adjustably mounted, e.g. by a screw thread.
Patent GB-443998-A (GB)
Title: Manufacture of solid stable sulphuric acid ester salts of leuco-vat-dyestuffs
IPC: C09J101/18
Filed: 1935-07-22
Abstract: Stable sulphuric acid ester salts of leuco vat dyestuffs are made in powder form by mixing together to form a paste, a moist alkali salt of the ester containing an excess of alkali and an agglutinant, and, if desired, urea and evaporating the paste to dryness, preferably under reduced pressure.  Agglutinants mentioned are glucose, cane-sugar molasses, sulphite cellulose waste liquor, dextrin, gum, glue or mixtures thereof.  In examples: (1) the potassium salt of the acid sulphuric acid ester of leuco - Bz. 2 : Bz 2<1> dimethoxy-dibenzanthrone and excess caustic soda solution are mixed with molasses syrup and urea and the mixture is evaporated to dryness in vacuo at about 60 DEG  C.; (2) the same salt is mixed with an aqueous solution of dextrin and the mixture similarly dried; (3) the dyestuff in (1) is replaced by the sodium salt of the acid sulphuric acid ester of the leuco-compound of the dyestuff of Specification 24604/08, [Class 2].
Patent GB-463849-A (GB)
Title: Improvements in or relating to phosphatic fertilisers
IPC: C05B13/02
Filed: 1936-07-27
Abstract: <PICT:0463849/III/1> The calcination of raw phosphates in the presence of steam and silicic acid by subjecting a continuous stream of the starting material to the action of a current of hot gases is carried out in a plurality of stages, the temperature in all the stages exceeding 1300 DEG  C. and the temperature in the second and subsequent stages exceeding the eutectic temperature, which lies at about 1415 DEG  C. By this means adherence of the material to the furnace walls is prevented.  The starting material may be finely ground and agglomerated, with or without water, to obtain granules, and the temperature in the first stage be so controlled as to disintegrate about 50 per cent of the outer portions of the granules. The process may be carried out on the countercurrent principle either in a single rotary furnace, the lower end of which has a reduced internal diameter or in a pair of interconnected rotary furnaces; or as shown in the Figure, the furnace 1c, heated by burner 20, may be worked in co-current and the furnace 1d, heated by burner 25, may be worked in countercurrent.  The treated material is cooled rapidly by water from nozzles 13b.  Specifications 301,022, [Class 1 (iii)], 418,788, 424,045, and 453,646 are referred to.
Patent GB-581930-A (GB)
Title: Improvements in and relating to circuit arrangement for transforming an electric impulse
IPC: H03K5/1532
Filed: 1943-12-13
Abstract: 581,930. Pulse shaping circuits. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Dec. 13, 1943, No. 20855. Convention date, Jan. 14. [Class 40 (v)] An electric impulse of curved wave form a, Fig. 1, is transformed into an impulse i rising abruptly from zero to a definite value by a sequence of operations involving differentiation, inversion, rectification and voltage limitation. An impulse a, Fig. 1, is applied from terminals B1, Fig. 2, to a differentiating circuit comprising condenser C2 and resistance R1. The first differential b is applied through valve 2 and transformer T1 to a full-wave rectifier G1 producing an output c in the form of a cusp. This is combined by the resistances R2, R3 with an inverted form a<1> of the original pulse a derived from a phase-inverting valve 1, thus producing the form d. A rectifier G2 eliminates the positive portion, and the negative portion e is inverted by the valve 3 to give the form e<1>. This passes to a differentiating circuit C8, R4 resulting in a double-pulse form f, from which the positive half is removed by a rectifier G3. The negative half g is inverted to g<1> by the valve 4 and is again differentiated by the circuit C4, R12 to produce short, sharp pulses h of opposite sign, one of which is removed by a rectifier G4, leaving a short positive pulse i occurring at the moment the initial pulse a passes through its maximum or minimum value. As an alternative arrangement, the initial pulse may be of the form b, and the final pulse i then occurs at the moment the pulse b passes through zero.
Patent GB-640992-A (GB)
Title: Improvements in drawing frames for long staple fibres
IPC: D01H5/74
Filed: 1947-07-31
Abstract: 640,992. Textile drawing apparatus; weighting arrangements; stop-motions. MACKIE & SONS, Ltd., J., and MACKIE, J. P. July 31,1947, No. 20867. [Class 120(ii)] The pressing roller of a textile drawing head mounted to turn or slide away from its associated drawing roller when a retaining member holding it in position is displaced, is carried by plungers guided to slide in a pivoting or sliding support and is pressed towards the drawing roller by springs or weights in such a manner that they assist the movement of the pressing roller away from the drawing roller when the retaining member is displaced. In one embodiment, a pressing roller 3 is carried in a fork member 7 having tubular arms which receive spring-pressed plungers 6. The fork member 7 is pivoted at 10 on the end of a horn bracket 11 fixed on a crossbar 12. Pressure of the pressing roller against its associated roller is adjustable by bushes. such as 17, locked by nuts 18. The fork member 7 is latched in operative position by a latch 19 pivoted at 20 and notched for engaging a pin 21 on the fork member 7. A stem 23 projects from the latch 19 and has a knob 24 on its end for operating the latch by hand. The latch 19 may be lifted automatically on the occurrence of a lap on either of rollers 1, 3 by arranging an eccentric roller 28 to raise the latch 19 when contacted by the roller 3. A pin 25 on a tailpiece of the latch 19 may serve to depress an arm 14 of a stop mechanism, such as is disclosed in Specification 640,993 thereby stopping further delivery of sliver to the drawing head. Instead of pivoting about the pin 10, the fork member may be slidable on guide rods, or be equipped with rollers to move readily along runways. In another modification, the pressing roller may be loaded by weights and the latch 19 be replaced by a slotted lever.
Patent GB-660516-A (GB)
Title: Improvements in or relating to electrical conductor rails and current collecting carriages travelling thereon
IPC: H02G5/04
Filed: 1949-08-12
Abstract: 660,516. Collectors. BUBB, J. B., and WALLACE, E. W. Aug. 12, 1949, No. 21004/49. Class 38 (i). A device for supplying current to mobile apparatus comprises a conductor rail consisting of a casing 21 having an elongated trackway 25, 26 on one side and an elongated opening on the opposite side, the casing embracing insulating material 18 having an inner chamber and an outwardly-opening groove 19, the chamber containing a conductor bar 11 with a surrounding metal sheath 14 having a narrow opening coinciding with said groove, a carriage 50 being movable on said trackway and carrying brushes 65 extending into the groove 19 to contact the conductor bar. The carriage has pairs of spaced rollers 51, 52 engaging the trackway and carried on upright straps 54 which support a carrier member 55 in which is seated an insulating receptacle 61 containing a metal holder 63 for the brushes to which a lead 71 from the apparatus is secured by a screw 68. The rollers are maintained in alignment with the trackway by shoes 75 on the sides of the carriage which engage the sides of the rail casing 21. The 'conductor bar 11 is formed in convenient lengths joined by flush lap joints. The insulation 18, sheath 14, and casing 21 terminate short of each joint to render it easily accessible, and the joint is normally completed by short conducting and insulating sheaths enclosed by a pair of outer casing members. The top of the casing has a rib 22 for engagement by supporting brackets 49.
Patent GB-411314-A (GB)
Title: Improvements in cleaning instruments, particularly for floors
IPC: A47L13/146
Filed: 1933-07-27
Abstract: 411,314. Mops constructed for wring- ing. BLUME, H., 27, Berchtesgadener Strasse, Sch÷neberg, Berlin. July 27, 1933, No. 21166. Convention date, Jan. 21. [Class 19.] A device for cleaning floors comprises a sponge or other device mounted on a handle and a wringer plate carried by a lever connected to the handle by a link and normally held in an inoperative position by a clip on the handle, but adapted to be swung into a position beneath the sponge &c., and then forcibly pressed against the sponge, to wring it. In the construction shown in Fig. 1, a sponge 4 of rubber or cellulose is detachably secured to a plate 3 on the end of a handle 1. A pair of levers 13 are pivoted at one end on the handle and at the other end are pivotally connected to a lever 6<b> provided with a clip 12 for attachment to the handle 1. The lever carries a pivotallymounted plate 8<b> resiliently held in position by a spring 11<b>. The plate 8<b> is used to squeeze moisture from the sponge when the wringing. lever 6b has been swung upwardly and round about the pivots 14. In the construction shown in Figs. 2 and 3, the wringing lever 6<c> is connected by a link 13<c> to the handle 1, the link having an arm 15 connected by a link 16 to the sponge holder 3, which is pivotally mounted on the handle 1. As the lever 6<c> is turned to bring the plate 8<c> to wringing position, the link 16 acts upon the sponge holder 3 to swing the sponge round to meet the plate. An abutment 17 limits the movement of the lever 6<c> about the pivot 14<c>.
Patent GB-136641-A (GB)
Title: Methods of Attaching Garment Hooks to Fabrics.
Inventor: FAIRWEATHER WALLACE
IPC: D05B3/18
Filed: 1918-12-19
Abstract: 136,641. Fairweather, W., (Singer Manufacturing Co.). Dec. 19, 1918. Hooks and eyes, sewing- machines for attaching.- A method of attaching articles to fabrics consists in supporting the article close to the fabric, passing fastening - means about a localized portion of the article and into the fabric, relatively swinging the article and fabric about the fastening-means as a hinge, and passing additional fastening-means about another localized portion of the article and into the fabric so as to secure the article at two spaced points. As applied to the attachment of garment hooks to fabrics by sewing, the hook h is held with the bend adjacent to the fabric and its throat opening upwards. Fastening-stitches b are then made about the bend, and the hook is pivoted about these stitches to lie on the fabric, after which additional fastening-stitches are made through the eyes. The operation may be carried in a machine such as is described in Specification 124,896.