baber/WOPTO huggingface dataset:
Patent GB-178785-A (GB)
Title: Improvements in bark stripping machines
IPC: B27L1/00
Filed: 1921-10-26
Abstract: 178,785. Gerace, G. Oct. 26, 1921. Bark, removing.-A machine for stripping bark from willow stems or the like comprises spring- pressed scrapers 20, 21, between which the stems &c. are fed by geared rollers, and stripping plates 37 which are mounted on a belt 31 caused to travel past the stems as they are fed through the machine. The feed rollers are all driven by one chain from the main pulley 15, the belt 31 being driven by worm gearing off one of the roller shafts. The lower scraper is mounted on a pivot 27 and can be pulled down by a foot lever.
Patent GB-259058-A (GB)
Title: Improvements in or relating to power transmission pulleys
IPC: F16H55/38
Filed: 1925-11-11
Abstract: 259,058. Abbott, G. J. Nov. 11, 1925. Expanding pulleys for use with belts or chains having laterally projecting compound teeth made up of metal plates sliding side-by-side comprise two conical flanges each made up of a face part C and a supporting casting &c. A. The face part C may be a relatively thin pressing or stamping having alternate ridges and depressions to engage the compound teeth accurately. Or it may be a steel saucer with machined-out grooves. It may be secured by bolts E to the backing A, or by means allowing the facings to accommodate themselves to one another and to the belt teeth. In one form, the facing is connected to its backing by a projecting ridge on the back of the former engaging a groove in the latter and forming a friction clutch. The flange as a whole is feathered on shaft B.
Patent GB-427031-A (GB)
Title: Improvements in and relating to hot water bottles
IPC: A61F7/08
Filed: 1933-10-14
Abstract: 427,031. Medical heating appliances and vaporizers. TIDMAN, W. B., 11, Milk Street Buildings, Milk Street, London. Oct. 14, 1933, No. 28462. [Classes 81 (i) and 81 (ii)] [See also Group XIII] A flexible or rigid hot-water bottle is provided with a pocket for the reception of a pad treated with medicament or inhalant. A rubber bottle 1 may be provided with a perforated sheet 2 secured along three edges, or removably attached by press studs. One edge 3 can be opened to receive the pad. The sheet 2 may have one or a number of large perforations or a large number of small perforations, and may be applied to two or more sides of the bottle.
Patent GB-159270-A (GB)
Title: Improvements in paint kegs and like metal receptacles
Filed: 1919-11-19
Abstract: 159,270. Carrick, W. L. Nov. 19, 1919. Rims of openings; covers. - A cylindrical paint or like keg 1 of sheet metal seamed longitudinally has an annular rim 3 flanged at 4 rolled over the flanged portion 2 of its upper edge, the inwardly-projecting part of the rim being turned in at its lower edge 5 and forming a seating for the lid. Lugs or clips 6 of pliable metal for securing the cover may be hooked over the upper edge previous to the application of the rim, the flanged part 2 being notched to permit this. The clips are held firmly in position when the parts 2 and 4 are rolled together. Reference has been directed by the Comptroller to Specifications 14301/88, 4856/91, 24353/06, and 26900/13.
Patent GB-811592-A (GB)
Title: Improvements relating to a method of and means for forming a flexible tube
Inventor: SAUNDERS DAVID JOHN
IPC: B29C61/00
Filed: 1956-09-19
Abstract: 811,592. Flexible tubes. COMPOFLEX CO. Ltd. Sept. 18, 1957 [Sept. 19, 1956], No. 28702/56. Class 99(2). In a method of making a flexible tube comprising a wire reinforcing helix 1 and at least one seamless, tubular layer of flexible material, such as polyvinyl chloride, rubber or synthetic rubber, a seamless tube 2 having one end 10 sealed is located within a guide tube 5, the internal diameter of which is greater than the external diameter of the resultant flexible tube, with the open end of the tube at or adjacent one end of the guide tube. The tube 2 is expanded against the wall of the guide tube by creating a pressure differential between the inside and outside of the tube, and the helix which has been expanded axially on a mandrel 3 is passed with the latter into the tube whereupon the tube is allowed to contract on to the helix. Finally, the helix and tube are removed from the mandrel and the helix contracts axially so that the tube folds or forms convolutions between the turns of the helix. There may be wire helices or binding material wound externally of one or more covering layers. As shown in Fig. 2, the mandrel has removable end pieces 4 to which the stretched helix is attached and the guide tube 5 has an outlet 8 connected to a vacuum pump 9 by which pressure in the guide tube is reduced to expand the tube 2. In a modification, the tube 2 is located in an open-ended guide tube 5 and is sealed by a gland 10 through which passes a draw-string 17 attached to the mandrel 3 carrying the axially-expanded helix and disposed in a pressure tube 14 ; fluid pressure is admitted to the tube 14 to expand the tube 2 and to enable the mandrel to be drawn thereinto. In another modification, the outlet 8, Fig. 2, of the guide tube is provided with a valve, and a cap, connected to a source of pressure fluid, is engaged over the open end 11 of the tube. Fluid pressure is admitted to the interior of the tube 2 to expand the latter into contact with the guide tube, and the valve is closed and the cap removed, the reduced pressure created within the guide tube holding the tube 2 in an expanded condition for insertion therein of the mandrel and helix.
Patent GB-303238-A (GB)
Title: Improvements in or relating to valves
IPC: G05D16/18
Filed: 1927-10-28
Abstract: 303,238. Armstrong, C. H., and Gordon, J. Oct. 28, 1927. Fluid-actuated valves; closure members, dual closure.-A valve device used to control the flow of fluids in accordance with changes in temperature, pressure, &c., has a combined piston and rotary cylindrical valve adapted to be rotated by, changes in temperature, &c., and reciprocated by variations in the conduit pressure. The valve member is arranged to work in an inner ported casing D, and has side ports F<1> adapted to cooperate with ports D<2> in the liner leading to the inlet and has an end part E<3> opposite the outlet C which is arranged at right angles to the inlet. The valve spindle, which is adjustably loaded by a spring K arranged between a bridge on the cover T and adjusting nuts on the spindle, passes through stuffing boxes F<1>, G<1> into a chamber H connected to the inlet side of the valve by a pipe H'. The closed end of the valve member is subject to inlet pressure admitted through ports D<1>. The pressure behind the valve may be arranged to be intermediate the inlet and outlet pressures. The application to a boiler feed regulator is described, in which case the valve is rotated by a thermal element connected to an arm L on the spindle.
Patent GB-483246-A (GB)
Title: Improvements in or relating to pivots for scissors and the like
IPC: B26B13/28
Filed: 1936-10-22
Abstract: 483,246. Pivots. BARTLETT, B. G. W., and GOLDING, R. R. Oct. 22, 1936, No. 28783. [Class 65 (ii)] A pivot for scissors and the like comprises a ball 1 at the contacting surfaces of the blades 3, 4, a part of the ball projecting into each blade, the parts being held together by a spring clip 10 having dished ends or projections 11 which engage bores or recesses 12 in the outer surfaces of the blades at the pivoting axis; only one end of the clip need be provided with a projection. The ball may be hollow, with a number of circumferential slots extending over part of its periphery.
Patent GB-185987-A (GB)
Title: Improvements relating to adjustable spanners
IPC: B25B13/16
Filed: 1921-10-29
Abstract: 185,987. Lucas, H., and Lucas, O. Oct. 29, 1921. Sliding - jaw wrenches; handles and shanks. - In wrenches of the type in which a split screwthreaded shank b slid ably engages n web g forming part of a handle member h, the web g is cut short and the handle terminates as a tube i within a transverse aperture in which the adjusting-nut k is situated.
Patent GB-1262163-A (GB)
Title: Improvements in and relating to cold light mirrors
IPC: G02B5/08
Filed: 1969-06-06
Abstract: 1,262,163. Cold light mirrors. BALZERS PATENT-UND BETEILIGUNGS AG. June 6, 1969 [July 25, 1968], No.28814/69. Heading G2J. A cold light mirror comprises a base which is permeable to heat radiation and which has deposited thereon in succession a first silicon layer and interference layers of alternate high and low refractive index wherein each layer has an optical thickness of a quarter of the mean wavelength (550 mÁ) of the visible range of the spectrum and wherein on the first silicon layer at least one further silicon layer is deposited separated from the first silicon layer by a layer of lower refractive index. In a first embodiment the layers consist from the base of Si, SiO 2  , Si, SiO 2  and TiO 2  . In a second embodiment, the SiO 2  layers are replaced by magnesium fluoride.
Patent GB-1468911-A (GB)
Title: Acousto-optic filter
IPC: G02F1/11
Filed: 1974-06-28
Abstract: 1468911 Controlling light MAT SUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 June 1974 [3 July 1973 30 Aug 1973 14 Dec 1973] 28817/74 Headings G2F In an acoustic-optic filter system a spectral portion of an incident polarized light beam 27 interacts with an acoustic shear wave 24 within a block 22 of optically anisotropic material and undergoes what is described as "far-off-axis anisotropic Braggs diffraction" into an orthogonal polarization, for separation at an analyzer 30 for example. In optically anisotropic material, an acoustic wave, vector K a , Fig. 6c, may interact with an optical wave, vector k;, at # i  to the optical axis, to produce a diffracted wave of orthogonal polarization, vector kd, at # d  to the axis, the moduli of k; and kd being different, and at relatively low acoustic frequencies solution of the appropriate equation gives two pairs of values for # i  and # d , Fig. 3, the larger values # i2  and # d2  relating to "far-off-axis diffraction". In Fig. 4, block 22 is of paratellurite TeO 2 , the beam 27 is incident on a <001> face so as to make an angle # ie  of at least 5 degrees with the optic axis 28 and the shear wave propagates in the <110> direction 26. Paratellurite is optically active along axis 28, but at the angles used in far-off-axis diffraction, the effect is small and beam 27 is substantially plane polarized in block 22. The spectral bandwidth and position of the diffracted light may be controlled by varying # i  and the acoustic frequency respectively. To prevent refraction, the optical input face may be cut to be normal to the beam 27. The output face may be parallel to the input face, Fig. 7 (not shown), but since the direction of the diffracted beam is not parallel to the beam 27, and varies with wavelength, it is preferably cut so as to minimise refraction over the desired waveband, Figs. 8a and 8b (not shown). Cutting the input and output faces reduces the acoustic-optic interaction volume, if troublesome acoustic reflections are to be avoided. This is avoided in Fig. 9 by cutting the face 52 bearing the acoustic transducer 43 at # b  to the <110> direction, whereby due to acoustic anisotropy, the acoustic group velocity direction is deflected by a much larger angle # a  to lie along 64 parallel to input face 51. Alternatively an acoustically matched wedge of angle # b , for example if 2À5 degrees for # i  = 30 degrees, may be disposed between the transducer and paratellurite block. The wedge may be of a chalcogenide glass, paratellurite or an adhesive.
Patent GB-299843-A (GB)
Title: Tool for opening tins of preserves
IPC: B67B7/46
Filed: 1928-10-09
Abstract: 299,843. Biscarrat, P. J. M. Nov. 2, 1927, [Convention date]. Opening by cutting.-A tin opener comprises lever members 2, 5, pivoted together at 10 with a spacing washer intervening and provided respectively with a bearing member 1 adapted to rest on the end of the tin with a toothed portion engaging the inner edge of the rim, and a bevelled cutting blade 6 adapted to make a cut in the wall of the tin on the lever members being pressed together. The lever members are fitted with handle portions, and are maintained separated by means of a spring 16.
Patent GB-936639-A (GB)
Title: Improvements relating to stapling machines
Inventor: CLEAVER JACK THOMAS
IPC: B25C5/16
Filed: 1961-08-11
Abstract: 936,639. Stapling machines. OFREX Ltd. Aug. 10, 1962 [Aug. 11, 1961], No. 29093/61. Class 89 (3). A stapling machine comprises a magazine having a stapler support bar 11 and a saddle 13 arranged to bias the staples 12 towards the front of the machine by means of a tension spring 20 connected at one end to the saddle and passing around a roller 19 rotatably mounted at the front end of a removable cover 14 and then being anchored at its other end to the back of the cover. The bar 11, which may be solid or formed as a pressing shown, is provided with guideways 11a which are secured to an outer pressing 6 of the magazine. The cover 14 is arranged to slide in the guideways as shown in Fig. 3 and, when in the operative position shown in Fig. 1, is retained against the action of the tension spring 20, by means of a leaf spring 16. The front wall of the staple discharge channel 5 is formed by a removable plate 25 secured in its operative position by a spring clip 27, the ends 28, 29 of the clip being located in holes 30, 31 formed in the side walls of the pressing 6. In order to prevent the plate from being removed when the cover 14 is in its operative position and the spring 20 under tension, a tag 33 fixed to the cover is arranged to enter a recess 32 in the end 29 of the clip. Projections 35 are provided on the cover which engage with removable stops on the pressing 6 in order to prevent the cover and staple feeding mechanism from being completely withdrawn during reloading. The driving blade 3 of the machine is actuated, via a piston mounted in a housing 1, by compressed air.
Patent GB-243359-A (GB)
Title: An improved process and means for humidifying & impregnating textile & other materials
IPC: D06B3/10
Filed: 1925-11-18
Abstract: 243,359. Manzoni, A., and Muller, E. Nov. 18, 1924, [Convention date]. Liquids, gases, and vapours, treating with.- Textile materials &c. to be humidified, dyed, stained, &c. are enclosed in a chamber 1 which is first exhausted through the atomizers 3, 4, 20, 21, pipes 9, and a pump 13, then water &c. admitted through pipes 16, 28 from a tank 19 is sprayed by steam admitted through a cock 11, and finally the steam is turned off and the water &c. sprayed by cold air supplied by the pump 13. The process can be repeated. The pump is fitted with two three-way valves 12, 12<1> so that it can be used for exhausting or pumping, and separate atomizers may be used for spraying with air and steam. The atomizers are arranged in sets pointing in opposite directions in perforated &c.. chambers 2, or are separated by perforated &c. plates from the main part of the chamber 1.
Patent GB-436994-A (GB)
Title: A method of and means for closing the bladder insertion opening in inflatable sports balls
IPC: A63B41/08
Filed: 1934-10-11
Abstract: 436,994. Footballs &c. PARGETER, J., 32, Sun Street, Finsbury Square, London. Oct. 11, 1934, No. 29121. [Class 132 (ii)] Means for closing the bladder insertion opening of sports balls comprise a strap member having two end portions 3, 3<a> which are secured to opposite edges of the casing opening, and have strip extensions 4, 4<a> spaced apart so that the strips of one portion pass through the spaces between the strips of the other portion, the other end portions 5, 5<a> being connected by a rubber web or webs 7, 8. The bladder valve passes through an aperture 13, and inflation of the bladder draws the edges together. The aperture 13 may be formed in the rubber web and in the outer casing, or it may be formed in a non-elastic portion 17, Fig. 7, connecting two rubber strips 6 and secured to the inside of the casing. A part of the casing itself may act as the intermediate portion 17.
Patent GB-749720-A (GB)
Title: Improvements in the production of uniform unitary polymers
Filed: 1953-10-22
Abstract: Granular polymers of monomers of the formula CH2 = CX1X2 where X1 is hydrogen or chlorine and X2 is chlorine, cyano, or acyl are made by polymerizing to up to 25 per cent conversion, one or more of the monomers, e.g. a mixture of vinyl and vinylidene chlorides, in an organic water-soluble solvent for the monomer in the presence of a soluble polymerization catalyst, adding to the polymerizing solution sufficient water to form a three-phase system and also a dispersing or emulsifying agent in an amount of 0.001 to 0.01 by weight of the monomeric ingredients, and completing the polymerization. Emulsifying agents mentioned are paraffin sulphonates, alkyl-aryl sulphonates, hydroxyethyldodecyl ammonium chloride, dodecylmorpholinium chloride and polyethylene oxides. Azodibutyronitrile is the specified catalyst.  The polymers may be melt spun.
Patent GB-621882-A (GB)
Title: Improvements in or relating to apparatus for determining the temperature of the surface of a hot body
IPC: G01K1/14
Filed: 1946-10-02
Abstract: 621,882. Pyrometers. BIRMINGHAM SMALL ARMS CO., Ltd., and LAND, T. Oct. 2, 1946, No. 29315. [Class 97 (iii)] An apparatus for determining the temperature of the surface of a hot body comprises a hollow transparent member 3 placed in close proximity to the body, and having an exteriorly reflecting surface except for a small aperture 5 through which the pyrometer, such as the photoelectric pyrometer 11, is focused on to the hot body. For measurements in the temperature range 800-1200‹ C. the member 3 is made of heat-absorbing glass or alternatively is made of ordinary glass and a heat-absorbing glass screen 13 is provided. For temperatures in lower ranges ordinary glass may be used. The arrangement is such that practically the whole of the total visible radiation is reflected back on to the hot body so that its surface is assimulated to that of a black body.
Patent GB-364548-A (GB)
Title: Improvements in or relating to apparatus for teaching flying and demonstrating the working of aeroplane controls
IPC: G09B9/12
Filed: 1930-09-30
Abstract: 364,548. Apparatus for training aviators. WHITING, J. R. S., Brown Eaves, Beaver's Hill, Farnham, Surrey. Sept. 30, 1930, No. 29332. [Class 4.] An apparatus for teaching flying and demonstrating the working of aeroplanes controls comprises a mancarrying aeroplane provided with a powerdriven propeller, a normal elevator and rudder, and mounted on a turntable by means permitting it to tilt or turn in any direction. The fuselage is attached to one half of a universal joint 3, Fig. 1, disposed vertically above the centre of gravity of the aeroplane when loaded, the other half of the joint being secured on a shaft 4 slidably but non-rotatably mounted in bearings 5 carried by a frame 6 rotatable round a spindle 7 and forming a turntable. The shaft 4 is capable of upward movement under the pull of the propeller when the aeroplane is appropriately tilted this movement being limited by a stop 10 and controlled by a dashpot 12. In a modification, Fig. 3, the aeroplane is mounted on a vertical spindle attached to the turntable frame and may or may not be capable of upward movement. Yawing movements are controlled by slack wires 19 fixed to the fuselage, when either of these wires is tensioned and yawing persists the shaft 4 will turn about the turntable axis. Directional and longitudinal control is made possible by the airscrew slipstream on the control surfaces, and lateral control by the displacement of a normally centrally disposed weight 13 by the joystick 16, Fig. 2, through a cable 17 which is left slack to allow of fore and aft movement of the stick 16; dummy ailerons are also fitted. Similar means may be used to assist longitudinal control. Springs or shock absorbers may be provided in the check means 19. Reference has been directed by the Comptroller to Specification 127,820, [Class 4, Aeronautics].
Patent GB-771253-A (GB)
Title: Improvements in and relating to scrapers for sedimentation tanks
IPC: B01D21/06
Filed: 1954-10-12
Abstract: 771,253. Gravity-separation apparatus. HARTLEY, A. J. Oct. 12, 1955 [Oct. 12, 1954], No. 29332/54. Class 46. Each one of four scraper arms secured to a driving ring 29, Fig. 3, comprises a flexible blade 10 of rubber or the like attached to a rigid bar 13, Fig. 2, by slotted brackets 11 so as to permit rise and fall of the blade 10 when irregularities of surface (see Fig. 3) are encountered. The contour of the blade (straight, in Fig. 3), is determined by that of the rigid bar. In Fig. 5 two curved blade-structures 10a are secured to a central rotating platform 40 and driving shaft 41 carried from an overhead crossbridge 42. Reference has been directed by the Comptroller to Specification 515,162.
Patent GB-959278-A (GB)
Title: Assembling screws and washers
IPC: B23P19/08
Filed: 1960-08-25
Abstract: 959,278. Bolts with captive washers. ILLINOIS TOOL WORKS Inc. Aug. 25, 1960 [Aug. 26, 1959], No. 29406/60. Heading F2H. [Also in Division B3] In assembling a washer 22 and a screw 11, the washer is placed on the shank 14 of the screw with an integral neck 26 on the washer surrounding an unthreaded portion 18 of the shank, and the neck is deformed radially inwards until the neck aperture is smaller than the crest-diameter of the screw-threads. The assembly may be heat treated to impart spring characteristics to the washer. The screw-head 12 may be undercut, Fig. 9 (not shown), to facilitate the deforming operation and permit threads to extend further along the shank.
Patent GB-277528-A (GB)
Title: Improvements in and connected with electric motors and mechanism for driving weaving looms
IPC: D03D51/00
Filed: 1926-11-22
Abstract: 277,528. Preece, E. Nov. 22, 1926. Driving, starting, and stopping arrangements. - The stator of an electro motor 4 for driving the loom is pivoted at 6 on a support on the loom frame 3 and has a lug 13 acted upon by a spring-controlled rod 11, whereby a friction pinion 8 on the motor is caused to engage a wheel 9 on the loom shaft 2. The rod 11 may be connected bv a lever 12 to the setting-on handle, so that when the loom is stopped the motor is pulled downwards, and the pressure between the wheels 8, 9 released, and the rotor of the motor can continue to revolve. An electric magnet may be used to regulate the pressure between the wheels 8, 9.
Patent GB-483340-A (GB)
Title: Improvements in potato harvesters for tractor haulage
IPC: A01D19/06
Filed: 1936-10-29
Abstract: 483,340. Harvesting potatoes. LANZ AKT.-GES., H. Oct. 29, 1936, No. 29472. Convention date, Nov. 2, 1935. [Class 6 (iii)] A multi-row potato harvester for tractor haulage comprises the desired number of throwing wheels b, c, mounted on a common shaft d driven through gearing from the power shaft g of the tractor each throwing wheel being arranged behind a lifting share, the bracket arms for the throwing wheels and the shares being so arranged that there is no obstruction to the material thrown by the machine. The tubular carrier a for the brackets may be extended when it is desired to fit more lifting devices.