baber/WOPTO huggingface dataset:
Patent GB-861741-A (GB)
Title: Improvements relating to chain and belt-tensioning means
Inventor: BLAKSTAD NIGEL HENRY
IPC: F16H7/08
Filed: 1958-08-12
Abstract: 861,741. Chain and belt tensioning. PERRY CHAIN CO. Ltd. June 23, 1959 [Aug. 12, 1958], No. 25820/58. Class 80 (1). To prevent snatch or jerking in a chain or belt drive on over-run, when the slack run becomes tensioned and the tensioned run becomes slack, and vice versa when the drive is taken up again, two spring-biased plungers 13 acting directly or through pivoted members on slippers 14 or on sprockets co-operate with the two runs of the chain, respectively on opposite sides of a sprocket, and reciprocate in hydraulie-fluid-filled cylinders connected with one another by a passage or an orifice 9, so that, in use, the two plungers move together in a controlled manner so as they effect a smooth change in the tensions of the two runs of the chain whenever a reversal or over-run of the drive occurs. The cylinders are kept filled with fluid from a reservoir 6 through clack-valves 20 in the plunger, as described in Specification 810,274, or a cylinder and plunger construction as described in Specification 788,500. In Fig. 4, not shown, the cylinders are offset one above the other and are joined by a bleed passage through the dividing wall. In Fig. 5, not shown, the tensioning units are positioned outside the chain runs and the cylinders are connected by a pipe of suitable bore.
Patent GB-401473-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L9/22
Filed: 1932-09-17
Abstract: 401,473. Vacuum cleaners. AKTIESELSKABET FISKER & NIELSEN, and FISKER, P. A., 30, Peter Bangsvej, Copenhagen. Sept. 17, 1932, No. 25909. Convention date, Nov. 12, 1931. Addition to 379,506. [Class 8 (i).] To reduce the sound of vacuum cleaners, the motor unit 4 is supported by the springs 5 from a dish-like cover 50 which in turn is supported by the springs 14 from the bell 3 which encloses the entire apparatus. An interior housing 53 secured to the bell terminates in a lip 56 leaving an annular air passage 55 for the extracted air on its way to the discharge opening 23. The size of the passage 55 varies inversely as the vacuum produced owing to the downward movement of the motor-unit under the control of the springs and this variation is stated to have a damping effect on the sound. Alternatively, the housing 53 is carried by the motor-unit in which case the flanging of the parts 54 is suitably modified.
Patent GB-1342838-A (GB)
Title: Detection system for superposed sheets
IPC: B65H7/14
Filed: 1971-04-19
Abstract: 1342838 Photo-electric apparatus XEROX CORP 19 April 1971 [6 April 1970] 26010/71 Heading G1A The apparatus described in Specification 1342656 is modified in that a second photoelectric element V2 is provided on the same side of the sheet path as the lamp DS1, and a sample sheet S of the kind of sheets being supplied is retained by a leaf spring member 66 in the light path to the element V2. The circuit includes means for comparing signals representing the sheet material fed and the sample sheet to determine if there is double feed.
Patent GB-586987-A (GB)
Title: Improvements in or relating to autographic registers
IPC: B41L5/06
Filed: 1944-12-28
Abstract: 586,987. Autographic registers. SMITH & SON, Ltd., W. H., and LANEGAN, F. E. Dec. 28, 1944, No. 26027. [Classes 106 (i) and 106 (iii)] An autographic register of the type in which stationery is drawn from a zig-zag pack over, a writing table and one copy ejected and/or one copy stored in another compartment, a supply of identification tape is driven by a pin wheel in synchronism with the stationery feeding means. A pin-wheel 12, mounted on a spindle 13 carrying the stationery feeding pinwheels 14, engages apertures in the tape which is drawn from a reel 9 detachably mounted on an arm 5 rockable to facilitate replacement of .the reel. As shown, the pin-wheel 13 has twelve pins to feed a triplicate ticket of the type shown in Fig. 3, while the pin-wheels 14 have thirteen pins engaging perforations in the side of the stationery which is thereby fed a slightly greater length than the tape. The pin-wheels are operated by a crank handle which operates a cam, which lifts a clamping bar 17 during feeding and lowers it at the end of feeding to operate a guillotine 14, 15 to sever the tape 1. The pin-wheels may be of the type described in Specification 408,125, [Group XVI]. Specification 514,173 also is referred to.
Patent GB-357354-A (GB)
Title: Improvements relating to railway slip points
IPC: E01B7/18
Filed: 1930-09-01
Abstract: 357,354. Railway slip points. VEREINIGTE STAHLWERKE AKT.- GES., 67, Breitestrasse, D³sseldorf, Germany. Sept. 1, 1930, No. 26107. Convention date, Sept. 2, 1929. Addition to 357,264. [Class 104 (i).] The two rails forming the central section described in the parent Specification are united by welding or welding and screwing instead of by screwing only. The adjacent surfaces of the rails may be machined to form grooves as shown in Fig. 1 for the welding material. When distancepieces are inserted between the rails, as in Fig. 2, they are welded to the rails.
Patent GB-798352-A (GB)
Title: Improvements in or relating to an open-chamber gun
IPC: F41A9/27
Filed: 1956-08-27
Abstract: 798,352. Open-chamber guns. DARDICK CORPORATION. Aug. 27, 1956 [Sept. 27, 1955], No. 26180/56. Class 119 Relates to a gun with a rotary chamber drum 1 having spaced open chambers 2, 3, 4 each running from end-to-end of the drum and adapted to receive a cartridge case 15 whose outer surface forms a continuation of the cylindrical surface of the drum. According to the invention, the drum 1 is journalled in a rigid breech frame 5 having an upper rail 9 which is provided with a relatively slidable breech portion 16 of wedge formation adapted to span an open chamber from side-to-side and end-to-end. One surface 18 of the wedge 16 is concentric with and of the same radius of curvature as the drum and the other surface 20 is inclined to the surface 18 and is in sliding engagement with a complementary surface 21 of the top rail 9. The arrangement is such that after firing, when the case 15 has expanded into tight frictional engagement with the breech surface 18, rotation of the drum 1 in a clockwise direction will drag the wedge 16 to move it away from the case 15, thus eliminating the frictional drag of the case 15 on the breech at the very beginning of the rotation and freeing the case for easy ejection upon further rotation of the drum. Stops 22, 25 limit the movements of the wedge and a leaf spring 27 urges the wedge 16 to its starting position. The lower rail 10 of the stationary breech frame is similarly provided with a slidable wedge 17 in association with a second barrel 13, Fig. 1 (not shown) firing alternately with the first barrel 12. The invention is also applicable to guns having more than two barrels.
Patent GB-676279-A (GB)
Title: Improvements in and relating to snap action toggle switches
IPC: H01H13/36
Filed: 1950-10-26
Abstract: 676,279. Snap-action switches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. (General Electric Co.). Oct. 26, 1950. No. 26191/50. Class 38 (v). In a snap-action switch, the moving contact or contacts 6 are mounted on one end of a thin flat resilient member having five parallel arms, the central and outer ones of which are in compression and the others in tension. The three central arms 44, 23, 43 are joined at their left hand ends where there is a projection 32 movable in a slot in a support 25 and the outer arms 29, 28, pivot at their left hand ends about a support 27 and at their right hands are joined to the tension arms 44, 43, movement being allowable between a stop 34 and the fixed contacts 19. An L-shaped spring 4 is arranged between the support 25 and the arm 23. In the form shown, pressure on a button 5 carries downwards the right hand end of central arm 23 till a dead centre position is passed whereupon the end 32 snaps upwards in so doing passing through another dead centre position which causes a snap upward movement of the contacts 6. When pressure on the button 5 is removed, the reverse process occurs. The switch may be operated by pressure, temperature or a float.
Patent GB-1471633-A (GB)
Title: Internal combustion engine cylinder head and valve assembly
IPC: F01L3/02
Filed: 1975-06-19
Abstract: 1471633 Cylinder heads and valves FORD MOTOR CO Ltd 19 June 1975 26209/75 Heading F1B An I.C. engine cylinder head 2 is made of a  hypereutectic alloy of Al and Si and has a valve 1 which is reciprocable to open and close a port 6, exhaust or inlet, in the head. The seating portion 7 of the valve comprises a hard facing of an alloy having good wear and impact resistance at high temperature e.g. a high cobalt alloy. The valve seat 8 in the cylinder head 2 is comprised of the same material as the rest of the head, i.e. there are no  seating inserts, e.g. an alloy according to B.S. 1490 LM30.
Patent GB-1478534-A (GB)
Title: Keyboards for musical instruments
IPC: G09B15/00
Filed: 1974-06-13
Abstract: 1478534 Keyboard musical instruments; musical notation R P MOORE 13 June 1974 [15 June 1973 3 May 1974] 26220/74 Heading G5J and G5X A musical instrument such as an organ or a piano has a keyboard comprising several rows of keys 14 mounted on a base 10 with means to couple the keys to devices for producing one or more notes, the keys being arranged in a manner similar to the keys on a typewriter keyboard. A bass or chord accompaniment can be provided by a foot operated pedal board. It can also be arranged that the pedals and possibly some of the keys, are arranged to produce single notes on depression by a small amount, further depression producing chords in addition to the notes. The keyboard can also contain one or more keys which produce chords when depressed in conjunction with any note producing key. A musical rotation system suitable for use with the instrument is described.
Patent GB-858893-A (GB)
Title: Improvements in or relating to collapsible mop heads
Inventor: MCPHERSON LEWIS W
IPC: A47L13/253
Filed: 1959-07-31
Abstract: 858,893. Mop holders. DUST-TEX CORPORATION. July 31, 1959, No. 26296/59. Class 61. A mop head comprises a housing H including a frame 1, a pair of wings 8, 9 for supporting a swab, mounted on opposite sides of the frame, one of the wings being mounted for pivotal movement relative to the other wing from a  position in which the wings are co-planar to a position in which the wings are collapsed. The frame 1 includes a manually movable lever and at least one link connected for movement therewith, the lever and link being movable from a position wherein the link is in engagement with the one wing to maintain the latter in its co-planar position, to a position wherein the link is disengaged from the one wing whereby the latter is free to pivot. As shown the housing comprises a rectangular casting 1 having a top surface 2, the casting being recessed to form side walls 3, 4. Each wall 4 has two transverse cut-outs 6, 7 from which extend the wings 8, 9 which support a swab S. The pivotable wing 9 is constructed of round or tubular wire and comprises straight side portions 15 extending through the slots 6 in the housing and terminate in legs 16. The legs 16 are received in trackways 18 each of which is formed by a lug 17 and the adjacent wall 4 of the housing H. The fixed wing 8 includes straight portions 21 which extend through the cut-outs 7 in the opposite wall 4 and terminate in inturned ends 22 received in trackways 23 provided in lugs 24 which form part of the housing. A thin metal cover plate 27 is secured by screws to the lugs 17, 24, the plate being of a size to encompass the straight portions 15 and 21 but not the slots 6. A lever 30 pivoted to the housing at 31 extends through a slot 33 in the walls 4 adjacent the wing 9. A link 34 keyed for movement with the lever 30 overlaps one of the straight portions 15 of the wing 9. A comparable link 36 overlapping the other straight portion 15, is connected to the end of the lever 30 by a pivoted link 35. By moving the lever to the opposite end of the slot 33 the links are moved from their overlapping position relative to the legs 15. The parts of the wings outside the housing H may be made of solid pieces. A mop handle socket 11 is pivoted to the frame about two mutually perpendicular pivot axes. In a modification the other wing 8 is collapsible, the lever extending upwards through the top surface of the housing. In another modification both wings are collapsible. Specification 858,744 is referred to.
Patent GB-601868-A (GB)
Title: Improvements relating to carpet sweepers
IPC: A47L11/33
Filed: 1945-10-09
Abstract: 601,868. Carpet sweepers. OYSTON, W. R., and NOVOBAX, Ltd. Oct. 9, 1945, No. 26298. [Class 138 (i)] In a carpet sweeper having no external wheels laterally of the sweeper casing, contact with the floor is afforded by a slightly protruding portion of an endless travelling belt located mainly inside the sweeper casing midway across it. A brush spindle 2 is mounted in bearings in the side of the casing 1, and the lower part of the spindle bears downwardly on and deflects the upper part of an endless travelling belt 13 carried on front and rear pulleys 9, 12 mounted in bearings in partition plates 11 inside the casing. On applying forward and downward pressure to the handle 20, also mounted in bearings in the plates 11, the spindle of the pulley 9 rides upwards in its bearings 10 so that the brush comes in contact with the floor. The front wall of the casing carries a flexible curtain 25 which trails on the floor, and on forward movement of the sweeper, the belt 13 drives the brush spindle 2 so that the dust is carried against the curtain 25, around the top of the casing and into a dustpan 15, while on rearward movement it is swept directly into the pan 15 over a lip 14. The spindle of the pulley 12 is mounted so as to be adjustable for tensioning of the belt by the operation of a lever 17 engaging a sleeve 16 on the spindle and moving the spindle horizontally. The brush is kept clean by cutters 23 formed of pressed-out portions of a metal strip 24 fixed to the casing roof, which cutters act as a comb for the bristles. The dust-pan 15 is pivotable on the plates 11 by a pin 15a, for removing the dust and giving access to the lever 17.
Patent GB-188159-A (GB)
Title: Improvements in apparatus for steaming and pressing garments
IPC: D06F71/34
Filed: 1921-10-05
Abstract: 188,159. Rogers, F. H., (American Laundry Machinery Co.). Oct. 5, 1921. Ironing-machines with pressing action only, steaming-apparatus for.-In a garment press provided with hand-controlled steaming means such as a pipe 15 extending aling the front edge of the head 5 mounted on the treadle-operated lever 4, the steam cannot be passed to the garment except when the press is open. The flow of steam is controlled by a valve 18 adapted to be opened by a bell-crank lever 24 pivoted at 25 and connected by a link 23 and arm 22 with the hand-bar 21 serving for swinging the head into and out of pressing position. By rotating this bar, the valve may be opened but this can only take place when the head is not in pressing position, for a slotted link 32 pivoted to the machine frame at 33 and engaging a pin 29 on the lever 24 prevents this lever from turning clockwise when the head is forced down upon the work.
Patent GB-785393-A (GB)
Title: Pigmented styrene polymers
Inventor: GROFF FRAZIER
IPC: C08K9/06
Filed: 1955-09-14
Abstract: A titanium dioxide pigment coated with polysiloxane is obtained by contacting particles of the pigment with from 1 to 4 per cent by weight based on the pigment of a hydrolysable organosilane which is hydrolysed and polymerized in situ on the particles. The pigment may be of the rutile or anatase type and the organo-silanes listed are methyl, ethyl and vinyltrichlorosilanes, ethyl-, amyl-, nonyl-, vinyl- and phenyltriethoxysilanes, phenyltributoxy-silane and vinyltic-b -methoxyethoxy silane.  The trichlorosilanes are hydrolysed by exposure to air and the trialkoxysilanes by acid or basic catalysts such as sulphuric or hydrochloric acid, sodium, potassium or ammonium hydroxide or quaternary ammonium bases, triethanolamine or dimethylamine, and condensed by heating to from 100 DEG  to 300 DEG  C.  The pigment is used in mouldable or extrudable styrene polymer compositions and promotes freedom from colour streaking and a stable colour brightness upon ageing.  These compositions may, if desired, include as a lubricant natural or synthetic waxes or a metal soap. An example describes a composition comprising also cadmium sulphide and cadmium sulphide-selenide.ALSO:Polystyrene and styrene copolymer moulding compositions contain from 1 to 10 per cent of a polysiloxane-coated titanium dioxide pigment obtained by contacting particles of the pigment with from 1 to 4 per cent of a hydrolysable organosilane, and hydrolysing and polymerizing the organo-silane in situ on the pigment partticles.  Polymers of styrene, a -methyl styrene and chlorostyrene and copolymers with acrylonitrile and butadiene are referred to.  The pigment may be of the rutile or anatase type. Organo-silanes listed are methyl, ethyl and vinyl trichlorosilanes, ethyl, amyl, nonyl, vinyl and phenyl triethoxysilanes, phenyl tributoxysilane and vinyl tri-b -methoxy-ethoxysilane.  The trichlorosilanes are hydrolysed by exposure to air and the trialkoxysilanes by acid or basic catalysts such as sulphuric or hydrochloric acid, sodium, potassium, or ammonium hydroxide or quaternary ammonium bases, triethanolamine or dimethylamine, and condensed by heating to from 100 DEG  to 300 DEG C.  Lubricants such as waxes, e.g. polyethylene oxides, beeswax, microcrystalline and carnauba waxes, soaps, e.g. zinc and aluminium stearates and sodium palmitate, and pigments, e.g. cadmium sulphide and cadmium sulphide-selenide may be present.  The compositions may be compounded with heat and extruded or injection moulded or a master-batch prepared and added to the main polymer.
Patent GB-1038564-A (GB)
Title: Loading arrangement with cargo booms
IPC: B66C13/54
Filed: 1963-07-03
Abstract: 1,038,564. Cargo boom loading device. LICENTIA PATENT - VERWALTUNGS G.m.b.H. July 3, 1963 [July 3, 1962], No. 26372/63. Addition to 1,007,310. Heading B8B. The control circuits of the two-cargo boom loading device of the parent Specification is modified to allow the winch motors to be connected in star or delta connection. This allows braking devices to be dispensed with as the motor in delta connection can pull through the motor in star connection.
Patent GB-716980-A (GB)
Title: Two dimensional dynamometer
IPC: G01L5/16
Filed: 1951-11-10
Abstract: 716,980. Dynamometers. CHERRY, J. Nov. 10, 1952 [Nov. 10, 1951], No. 26375/51. Class 106 (2) A dynamometer for measuring the cutting forces experienced by a work-piece during a drilling, tapping, or like operation, comprises a table 2 rotatably mounted on a pillar 1 supported on a thrust bearing 5 co-operating with a bell crank 7 the movement of which is indicated by a dial gauge 6 suitably calibrated to indicate thrust force. The pillar 1 is prevented from rotating by a beam 9, Fig. 2, which transmits the tangential force to a second dial gauge or other measuring instrument suitably calibrated to read the torque. The point of contact for each force is via a ball 5 and 10 respectively to reduce interaction between them to a minimum. Specification 284,856, [Class 106 (ii)), is referred to.
Patent GB-318750-A (GB)
Title: A new or improved tool-kit bag for saddles of cycles or motorcycles or the like
IPC: B62J9/00
Filed: 1928-09-15
Abstract: 318,750. Dunlop Rubber Co., Ltd., and Carr, F. R. Sept. 15, 1928. Tool-bags.-Tool-kit bags for the saddles of bicycles, motor-cycles, &c., are composed of rubber or rubber combined with another reinforcing material in one piece. The straps for affixing the bag in position on the saddle may be of the same material as the bag but preferably are always reinforced by a canvas or like insertion. The edges and corners are preferably rounded, and the surface of the bag may be varnished or otherwise treated to enhance the appearance thereof.
Patent GB-429341-A (GB)
Title: Improvements in methods of and apparatus for the conditioning of grain
IPC: B02B1/08
Filed: 1933-09-27
Abstract: 429,341. Conditioning grain. SIMON, Ltd., H., and WATTS, G., Cheadle Heath, Stockport, Cheshire. Sept. 27, 1933, No. 26547. [Class 58] Hot saturated air at a temperature not exceeding 150‹ F., is drawn from a chamber 1 through a main duct or header 5 to transverse inlet ducts 13 from which it flows through louvred apertures into grain passing down the conditioning tower the air escaping through similar louvred apertures into outlet ducts 13A and thence passing by a main exhaust duct 11 to a suction fan. The openings of the inlet and outlet ducts may be arranged alternately in successive divisions of the tower. The saturated air is preferably confined to an upper section 8 of the tower by closing a valve 12 and any increase in the moisture content of the grain due to condensation is counteracted by subjecting the grain to treatment with air at a temperature not exceeding the temperature of the grain in a second section 9 of the tower; as an alternative the moisture content of the grain may be reduced prior to conditioning. Cold atmospheric air is drawn through a third section 10 of the tower to reduce the temperature of the grain to normal. The conditioning, drying and cooling operations may be carried out in successive towers. Specification 12900/93, [Class 58], is referred to.
Patent GB-420931-A (GB)
Title: Improvements in or relating to spinning top toys
IPC: A63H1/02
Filed: 1933-09-28
Abstract: 420,931. Tops. LEHMANN, G. E. P., 6, Plauerstrasse, Brandenburg, Havel, Germany. Sept. 28, 1933, No. 26718. [Class 132 (iii)] A spinning toy comprises a top with a spindle and a screw - threaded spinning point screwed into a disc with a spinning foot-piece, the spindle of the top being rotated between two bars. The top, Fig. 5, is spun by inserting the spindle 11 between two relatively slidable bars 2 having handles 1. Each bar is provided with notches 3, 4 formed by an outwardly convex surface 5 which in the middle reaches the position of the original surface of the bar, the spindle 11 being inserted in the recess formed by the notches 4. The bars are provided with slots 6 in which slide U-shaped wire stirrups 7 provided with caps 9 and resilient means 10 to hold the bars together. During the rotation of the top by the bars 2 the disc 14 unscrews itself from the screw threaded spinning point 12 of the top to spin on its foot-piece 13, and on the spindle 11 passing into the opening formed by the notches 3 the top disengages itself from the bars 2 and spins either on the spinning disc 14 or on the floor.
Patent GB-1217078-A (GB)
Title: Rolling apparatus for manufacturing rings
Inventor: SAITO TADASHI
IPC: B21H1/12
Filed: 1968-06-05
Abstract: 1,217,078. Rolling rings. T. SAITO, M. SAITO, M. SAITO and H. SAITO. 5 June, 1968 [19 July, 1967], No. 26760/68. Heading B3M. A machine for rolling rings includes two main rolls 11, Fig. 3, which act on the surfaces of a ring a, transversely movable carriages 8 which carry the rolls, and a supporting block 18, Fig. 2 which is rotatable in steps of 90 degrees to move a ring between work stations A-C. Each carriage 8 is supported in a vertically adjustable housing 1. The block 18 is urged upwardly by a cylinder 22 and is constrained by an inclined rod 34.  A ring is loaded at station A between an inner roll 2 and a series of outer rolls 20, and after indexing through 90 degrees, is rolled at station B using the main rolls 11. At station C the ring is unloaded, while at station D the rolls 19 and 21 are cooled using a liquid or air nozzle 33. The rolling pressure exerted on a ring during rolling can be varied in response to the profile on a cam which controls the pressure in the cylinder 22.