baber/WOPTO huggingface dataset:
Patent GB-570184-A (GB)
Title: Electric measuring instrument
IPC: G01R17/08
Filed: 1943-07-06
Abstract: 570,184. Photo-electric measuring apparatus. STEGHART, F. L. July 6, 1943, No. 10962. [Class 40 (iii)] [Also in Group XXXVI] An instrument for measuring mechanical, electrical, hydraulic, and other physical values which can be converted to mechanical values and measured by causing movement of an element, is adapted to vary the light falling on a photo-cell connected to the grid of a gasfilled triode operated by A.C. mains current and is also connected by direct-acting mechanical means with a separate electromagnetic device in circuit with the anode of the valve so that the current flowing therethrough causes a reverse movement of the measuring element to balance the force acting on the moving element, one or more current responsive devices being inoluded in the anode circuit to indicate or record the value of this current and hence the magnitude of the value being measured. A .wattmeter 1 carries a mirror 5 which varies the light falling on a photo-cell 4 from a lamp 2. The mirror is attached to a coil 51 in the anode circuit of a gas-filled triode 8 so that the current through the coil causes a reverse torque to balance the wattmeter torque. An ammeter 6 indicates the value of the balancing current and hence the power being measured. An oil damping device 7 is provided. The photo-cell 4 is connected to the grid of the valve 8, which is operated by A.C. and is so controlled that its anode current is proportional to the change in the light value. An automatic switch 10 prevents the anode current of the valve from being switched on before the cathode is heated. A condenser 16 and choke 17 smooth the anode current and a resistance 18 limits the maximum current through the ammeter 6. In a modification, one wire of the indicator or recording instrument is earthed and the cathode of the valve and one side of the photo-cell is rim at a low voltage against earth with a low voltage applied to the photo-cell. Specification 537,784 is referred to.
Patent GB-411646-A (GB)
Title: Improvements in or relating to scythes
IPC: C03B23/09
Filed: 1933-04-13
Abstract: 411,646. Scythes. RAWDING, J. H., 14, Westmoreland Street, Balby, Doncaster. April 13, 1933, No. 11010. [Class 6 (iii).] A scythe of the one handed type comprising three main parts, a blade 10, a shank 14, and a handle 19 with means for detachably connecting the handle to the shank and the shank to the blade, has the shank detachably secured to the blade in line therewith and extending therefrom in a curve, the concave portion of which faces the blade point, which is continued in a reverse bend terminating in a straight end to which the handle is secured at the desired angle. The blade 10 is reinforced by a backing 11 and is secured to the shank by bolts passing through the blade and backing and provided with nuts 21. The shank of mild steel or malleable iron, may be of cruciform or rounded section, its handle end being flattened to enter a slot or fork in the wooden handle to which it is secured by bolts 22. The free end of the handle may be provided with an opening to take a spanner for tightening the nuts, such opening being covered by a cap 26.
Patent GB-615465-A (GB)
Title: Device for use in manually winding a skein of yarn into a ball
IPC: B65H49/30
Filed: 1946-04-10
Abstract: 615,465. Domestic skein holders. ATIN, 1. L. April 10, 1946, No. 11044. [Class 120(ii)] A device for use in manually winding a skein of yarn into a ball comprises a base A carrying a swivel pin C on which is threaded a U-shaped carrier D in the upturned sides d of which are formed elongated slots e in which hook-shaped overlapping skein-supporting arms E, E' are relatively adjustable. A similar pair of arms F, F<SP>1</SP> may be provided between the arms E, E' and the base of the carrier. The parts may be held in their adjusted positions by screwing the stem c of the pin C into the .carrier.
Patent GB-183216-A (GB)
Title: Improvements in connection with hammer drills
IPC: B25D17/08
Filed: 1921-04-15
Abstract: 183,216. Nyborg, T. G., and Higgins, M. F. April 15, 1921. Percussive drills.-The drill is retained by a spring stirrup 1, the jaws of which are sprung over two inclines 7, so disposed as to give the stirrup a tendency to turn as shown by the arrow, and hold itself up against a shoulder 8. The inclines 7 may be found on the muzzle-cap as shown, or on an adapter screwed thereto.
Patent GB-847459-A (GB)
Title: Conveyor belt
Inventor: SYCE ALBERT ALEXIS
IPC: B65G15/42
Filed: 1959-04-01
Abstract: 847,459. Endless-belt conveyers. STILTNER, M. A. April 1, 1959, No. 11100/59. Class 78 (1). A one piece elastomer belt 1 is formed with side walls 2 of trapezoidal cross-section having one or more cavities 5, 6 extending throughout their length into which the adjacent elastor can flow. The cavities are generally rectangular in cross-section and transversely elongated. The outer walls of the cavities lie in a common plane parallel to the side faces 3 of the walls 2, and their upper inner corners preferably lie in a common plane parallel to the sloping face 4 of the wall. A reinforcing strip 7 of any desired material is bonded to the lower face of the base 1. The faces 3 are approximately vertical and the faces 4 are inclined at approximately 30 degrees to the vertical.
Patent GB-1298792-A (GB)
Title: A two part box
Inventor: ZACH ELLA
IPC: B65D1/34
Filed: 1971-04-23
Abstract: 1298792 Cheese boxes; container closures LUDWIG ZACH VERPACKUNGEN 23 April 1971 11131/71 Headings B8P and B8T A round box for cheeses comprises a deepdrawn plastics base having a resilient doublewalled side wall 3, and a cardboard lid 1. The lid includes a bead 5 which seats in a peripheral groove 4 in the side wall 3 when the box is closed. The base 2 includes strengthening ribs 7 in its bottom wall and slots 8 in its side wall 3. The lid is coated on its interior surface with synthetic plastics material. A number of identical boxes may be nested together and the closed boxes may be stacked, due to the provision of a space 6 between the double walls of the base. The lid may be printed on.
Patent GB-240508-A (GB)
Title: Improved lens systems
IPC: G02B13/18
Filed: 1924-05-06
Abstract: 240,508. Warmisham, A., Twyman, F., and Kapella, Ltd. May 6, 1924. Lenses.-Lens systems of the kind described in Specification 209,371. have some of the surfaces usually two, the back and front surfaces, modified from the spherical form by the means and methods described in Specifications 103,832 and 130,224, in order to improve the correction for spherical aberration, while maintaining the correction for zonal astigmatism.
Patent GB-149063-A (GB)
Title: Improvements in or relating to railway sleepers
IPC: E01B3/18
Filed: 1919-05-05
Abstract: 149,063. Bengough, C. F. May 5, 1919. Sleepers, metal.-Channel sleepers 3 have rail seats composed of inverted channel-shaped saddles 1 which are so shaped that, when secured in position by rivets 7, their upper faces are inclined inwardly, preferably at an angle of 1 in 20. As shown the saddles have sides 14 provided with curved ends 12 to fit the curve in the angles of the sleeper 3.
Patent GB-1294529-A (GB)
Title: Interlocking railing construction
Inventor: MURDOCK ROBERT HAMILTON
IPC: E04F11/18
Filed: 1970-02-13
Abstract: 1294529 Wedges RAILTEC CORP 13 Feb 1970 11209/72 Divided out of 1294528 Heading F2K [Also in Divisions E1-E2] Vertical tubular rails 61 are connected to opposed holes in the lower rail 36 and the upper connecting bar 13 by locking studs 63 which are easily insertable through the holes into the rail with the projections 69 interfitting (as shown in Fig. 8) and are held in engagement with the rail when the right hand stud is tapped down by a hammer so that projections 69 abut each other. The studs are of triangular section and the projections 69 are chevron shaped. Tubular main posts 12 are connected to the horizontal locking bars 13 by hangers 21 which are a press fit between the base 17 and flanges 19 of the locking bar and have a depending portion 24 inserted in the top of the part, and wedges 27 forced down between the hangers 21 to press serrated faces 26 into frictional contact with opposed inner walls of the post. The wedge limbs 29 each has a rib at its lower end to engage a corresponding groove 31 on the respective hanger. The lower rails 36 are secured to connectors 41 secured to the posts by rivets by a U-section wedge 48 which engages between flanges on the rails and grooves in the connector.
Patent GB-1045121-A (GB)
Title: Improvements in or relating to a pipe joint
IPC: F16L27/10
Filed: 1965-03-17
Abstract: 1,045,121. Pipe coupling. CENTRE DE RECHERCHES DE PONT - A - MOUSSON. March 17, 1965 [May 14, 1964], No. 11269/65. Heading F2G. A pipe coupling of the kind wherein a pipe end 1 is received in a socket 3 of a second pipe, a sealing element 6 is disposed around the pipe end in the socket and is compressed longitudinally by an annular member 7 having a generally U-shaped cross-section and provided with a number of bosses 11 evenly spaced around its circumference, each boss having apertures 12 receiving bolts 13 having heads provided with hooking noses 16 co-operating with an outer flange 5 on the socket member to axially move the annular member, is charaterized in that each bolt is provided with lateral projections 17 located one on each side of the hooking nose, and the annular member has a cylindrical surface 10 provided on the inner face of the outer arm 9 of the U-shaped cross-section which bears against the lateral projections of the bolt head, the axes of the bolt apertures being located at the same radius as the cylindrical surface.
Patent GB-523292-A (GB)
Title: Improvements in or relating to range finders
IPC: G01C3/12
Filed: 1939-04-14
Abstract: 523,292. Range-finders. KODAK, Ltd. April 14, 1939, No. 11333. Convention date, April 14, 1938. [Classes 97 (i) and 98 (i)] , The two beams entering a short base rangefinder pass through negative lenses producing virtual images which are re-imaged by collective lenses to form a combined image in the plane of a collective field lens, the combined image being viewed by a telescope; the range-finder may be combined with a camera and be adjusted simultaneously with the focussing adjustment of the camera lens, and may be simultaneously adjusted for parallax. As shown in Fig. 2, the beams from negative lenses 16, 17 at the ends of a base are reflected by surfaces 11, 12 to objectives 18, 19 producing images in a plane near a field lens 22 placed near the exit face of a prism 13 doubly reflecting part of the beam from the lens 16. The images are viewed by a telescope comprising an objective 20 having its axis parallel to the base and an eye-piece 21 having its axis perpendicular to the base, a reflector 14 being provided between them. Coincidence of the images is effected by moving the lens 17 in its plane by means of a sliding bar 29 operated through an extension 32 engaged by one arm 27 of a lever on a pivot 26. The lever may have an arm 25 engaged by a raised ring 24 on the camera objective, the range-finder being thus adjusted simultaneously with focussing adjustment of the objective. A third arm 28 of the lever carries a range-indicating scale 34 visible in the eye-piece with a frame 35 embracing the image produced by the objective 20. Parallax adjustment of the image in the frame 35 is effected by means of an arm 36 which is pivoted at 37, carries the objective 20, and is moved vertically by engagement with a lug 39 on the lever arm 25. Fig. 3 shows a modification in which negative and positive lenses 40, and prisms 41 ... 44, produce images in the plane of a field lens 45, the images being viewed by a telescope comprising objective lenses 53 and an eye-piece 54. A ring 49 on the camera objective operates, through a lever 50 and an arm 46 on a pivot 47, to turn the prism 42 and effect coincidence of the images. The arm 46 carries a rearward projection 57 carrying a scale'56 visible through an opening in a frame 55 enclosing the viewed image. The projection 57 also carries an ear 62 having an inclined edge engaging a spring-pressed rod 58 mounted on a pivot 59; the rod 58 carries one objective lens 53, and adjusts it for the parallax between the lenses 40 and the camera objective. Specification 129,043, [Class 97 (i)], is referred to.
Patent GB-386494-A (GB)
Title: Improvements in or relating to tipping apparatus for lorries or the like
IPC: B61D9/02
Filed: 1932-04-20
Abstract: 386,494. Tipwagons. POURTOIS, M., 265, Rue de la Station, Leval, Trahegnies, Belgium. April 20, 1932, No. 11375. [Class 108 (i).] Hydraulic tipping- apparatus for a lorry comprises an inner cylinder 4 secured to a bar 1 pivoted in a member 2, and an outer cylinder 9 having a head 5 sliding on the cylinder 4, a trunnion member 6 for supporting the front of the tipping body being secured on the head 5 by a lock-nut 6<1>. Fluid is introduced into the cylinder 4 by a pump 8 and released by a valve actuated by a spindle 3. A stuffing-box 7 is provided on the head 5.
Patent GB-1285265-A (GB)
Title: Vinylpyrrolidone copolymers
Inventor: VIOUT ANDRE
IPC: A61K8/81
Filed: 1970-05-08
Abstract: 1285265 N-vinyl pyrrolidone copolymers L'OREAL 8 May 1970 [9 May 1969] 11417/71 Divided out of 1285264 Heading C3P A copolymer of 40 to 90% N-vinyl pyrrolidone, 5 to 40% of vinyl laurate or stearate, and 5 to 20% of crotonic acid, vinyl acetic acid, allyl acetic acid or allyloxyacetic acid may be obtained by copolymerization in the presence of free-radical catalysts. The copolymers may be neutralized.
Patent GB-354345-A (GB)
Title: Improvements in or relating to drum magazines for machine guns and automatic small arms
IPC: F41A9/74
Filed: 1930-04-10
Abstract: 354,345. Machine guns. VICKERSARMSTRONGS, Ltd., LARSSON, C. A., and HIGSON, P. R., Vickers House, Broadway, Westminster. April 10, 1930, No. 11450. [Class 92 (ii).] A cartridge magazine B of the Lewis type has an inclined shoot B<2>, Fig. 3, leading to a plate B3 which positions the cartridges for extraction rearwardly by the breech-bolt x, Fig. 1, the plate being removable to allow of recharging the magazine from a hopper D<1>, Fig. 6, the magazine for this purpose being mounted on a recharging stand D for rotation on a horizontal axis. Dummy cartridges without extraction rims serve to propel the live cartridges in the shoot and remain in the shoot after the live cartridges have been extracted. The dummies are fed back into the magazine when recharging. The dummy cartridge opposite the extraction opening B<2x> is prevented from falling out by linking it to its neighbour. Specification 350,892 is referred to.
Patent GB-705932-A (GB)
Title: Improvements relating to tents or like shelters
IPC: E04H15/00
Filed: 1951-05-16
Abstract: 705,932. Tents. POULTON, F. C. May 1, 1952 [May 16, 1951], No. 11465/51. Class 20 (1) A multi-sided, lightweight tent has four walls a which merge to a centre point at the top and is supported by four flexible members each of which is housed in a channel formed inside the fabric cover in the angle between adjacent walls, the members meeting at the top centre point. The flexible members, which are slid into the channels from the bottom when the tent is to be erected, may consist of jointed lengths of cane or of metal tube or of lengths of arcuatesection metal ribbon which can be coiled up when the tent is dismantled. The tent, which has a greater horizontal cross-sectional area a few feet from the ground than that at ground level, is secured by guy ropes which are attached to each corner at.e.
Patent GB-252351-A (GB)
Title: Improvements in snap fasteners
IPC: A44B13/02
Filed: 1926-05-01
Abstract: 252,351. Guttman, H. H., and Guttman, S. May 20, 1925, [Convention date]. Catches yielding to pull or pressure.-One element of a snap fastener consist of a metal plate 12 carrying a wire loop 14; the other elements consists of a metal plate 13 carrying two wire loops 15, 16, the shorter and wider loop 15 being curved so that its end lies close to the loop 16, which is almost flat. The loop 14 is forced between the loops 15, 16 and is held by the resilience of these loops.
Patent GB-1075105-A (GB)
Title: Process for the production of crosslinked polyurethanes
Inventor: HEYDKAMP WOLFGANG
IPC: C08G18/12
Filed: 1966-03-16
Abstract: Cross-linked polyurethanes are prepared by reacting a polyhydroxyl compound having a M.W. of 1500 to 6500 and containing two primary hydroxyl groups, a diisocyanate and a chain extender containing reactive hydrogen atoms, the polyhydroxyl compound being the reaction product of a mixture in the proportions of 1 mol of a dihydroxyl compound with a M.W. of 800 to 3000 to 0.5 to 1 mol of a glycol with a M.W. of 60 to 400, to 1 to 1.5 mols of a diisocyanate. The polyhydroxyl compound may be derived from conventional polyesters, polyethers, polythioethers or polyacetals, conventional aliphatic, cycloaliphatic or aromatic glycols and diisocyanates such as m- and p-phenylene diisocyanate, 4,41-diphenylmethane diisocyanate, naphthylene 1,5-diisocyanate, 2,4-toluylene diisocyanate and hexamethylene diisocyanate. For preparing the cross-linked polyurethanes, the diisocyanate used may be the same or different to the diisocyanate used in forming the polyhydroxyl compound.  Suitable chain extenders are the above mentioned glycols, diamines, aminoalcohols, water and hydrazines.  The polyurethanes may be further cross-linked with sulphur or formaldehyde.
Patent GB-1351496-A (GB)
Title: Preparing unsaturated acetates
IPC: C07C69/14
Filed: 1971-04-27
Abstract: 1351496 Vinyl and allyl acetates by pyrolysis HALCON INTERNATIONAL Inc 27 April 1971 [27 April 1970] 11599/71 Heading C2C Vinyl and allyl acetate are prepared by pyrolysing a feed consisting of ethylene or propylene glycol diacetate respectively, the feed before pyrolysis being subjected to esterification in order to reduce the concentration therein of incompletely esterified alkylene glycols. The esterification is preferably carried out at a temperature of from 50 to 300‹ C. in the presence of an acid catalyst. The feed may be obtained by catalytically oxidizing an alkene in acetic acid. A suitable apparatus in which to carry out the process of the invention is described.
Patent GB-542485-A (GB)
Title: Improvements in coupling-circuit arrangements in radio-receivers
IPC: H04B1/10
Filed: 1940-02-23
Abstract: 542,485. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., COCKERELL, C. S., BRAILSFORD, J. D., and CUFFLIN, M. H. Feb. 23, 1940, No. 11623/41. Divided out of 552,497. [Class 40 (v)] In a supersonic heterodyne receiver the coupling between first and second signal frequency valves comprises a circuit tunable by a variable capacity and having in series with the inductance a trap circuit tuned to the intermediate frequency. In a multi-band receiver the trap circuit LT, CT may be provided only on that waveband which is close to the intermediate frequency. The inductance L3 may be connected to a tapping in the trap circuit and the waveband switch may short circuit the unused contacts 2 ... 5. In this way instability due to the tuned circuit having a high impedance at the intermediate frequency is avoided and whistles due to pick-up at the intermediate frequency are prevented. Specification 422,312 is referred to.
Patent GB-377727-A (GB)
Title: An improved method of constructing bridges and like structures in concrete
IPC: E01D4/00
Filed: 1931-04-21
Abstract: 377,727. Bridges. FERGUSON, J. H., 59, New, Cross Road, Stamford, Lincolnshire. April 21, 1931, No. 11734. [Classes 20 (i), 20 (iv), and 87 (i).] A method of constructing concrete bridges consists in employing a temporary support a for a course of precast slabs b on which is cast horizontal steps or landings e which form supports for laterally extending cantilevers which serve to carry depending stirrups hand orificed bars i to support the laterally extending precast slabs while they are cemented into position. The slabs are laid in bonded formation to form toothed joining edges, the final edges being finished flush. The precast slabs b are provided with metal reinforcing bars c to engage with the concrete of the landings.
Patent GB-257647-A (GB)
Title: Improvements in and relating to telephone instruments and the like
IPC: H04L25/08
Filed: 1925-05-06
Abstract: 257,647. Doble, F. C. May 6, 1925. Portable sets; head sets; earpieces; mouthpieces; magneto-microphonic relays. -Telephone and like instruments are formed with an elongated rigid insulating device between the earpiece or mouthpiece and the instrument proper, in order to protect the user from high-potential discharges. In the portable set shown in Fig. 3, the transmitter 6 and receiver 7 are connected by tubes 9, 10 to passages 2, 3 in a long insulating rigid tube, preferably made of wood impregnated with paraffin wax, terminating in a mouthpiece 4 and earpiece 5, which may be closed by diaphragms. The tubes 2, 3 may be from three to twenty feet in length and half to three-quarters of an inch in bore. The casing 8 also contains a battery, transformer, switch, and a horn gap and vacuum tube arranged in parallel across external conductors, which may be formed with hooked ends, whereby the set may be hung directly on the line wires. Similar rigid insulating tubes may be used to connect the receivers of a wireless head set to the ears, or the transmitter of a wireless transmitter to the mouthpiece, or in a two-way telephone repeater to connect the receiver of one line with the transmitter of the other and vice-versa. The use of a long tube between the receiver and the earpiece also reduces the acoustic shock due to a sudden impulse.
Patent GB-416642-A (GB)
Title: Improvements in and relating to matrix composing and type-line casting machines
IPC: B41B11/38
Filed: 1934-04-19
Abstract: 416,642. Type-bar-making machines. INTERTYPE, Ltd., Farnham Road, Slough, Buckinghamshire.-(Assignees of Intertype Corporation; 360, Furman Street, Brooklyn, New York, U.S.A.) April 19, 1934, No. 11810. Convention date, May 26, 1933. [Class 100 (iii).] Assembling matrices.-The line stop a, Fig. 1, on the first elevator is made freely movable, and excess movement thereof under the action of the right-hand vice-jaw d, as it moves to the left in order to clamp a short line, is prevented by a projection h, Fig. 3, on the line stop, which is adapted to engage in a recess i in the left-hand jaw e.