baber/WOPTO huggingface dataset:
Patent GB-302533-A (GB)
Title: Improvements in machines for cutting plastic material such as yeast
IPC: A23G7/00
Filed: 1928-04-12
Abstract: 302,533. Marks, E. C. R., (Package Machinery Co.). April 12, 1928. Cutting - apparatus; delivery.-Comprises a machine for cutting substances such as yeast into blocks and then subdividing the cut blocks into units, provided with means for ensuring that each block contains an exact number of units to be cut, the units being delivered for wrapping and packing. Figs. 1 and 3 show the block - cutting mechanism. The skeleton frame 51 carrying the cutting blade 52 is traversed along the screw 30 and assists in pushing forward the cut block of material which rests on the moving belt 19. A latching member 43 is released on arrival at the gap 33 in a guide member and allows the cutting frame to swing upwards under the action of the spring 47 into the position shown in Fig 5. This movement releases the frame from the screw so that it can be pushed back by hand to the commencement of its stroke and then depressed to sever a block by means of the handle 45. The subdivision into units is performed by the wire C, Fig. 16, operated by a cam on the shaft 25 acting through members 67, 65, 64 and 60. A cam 69, Fig. 15, moves the shaft 66 of the cutting-mechanism axially in unison with the moving material. Gripping-members 76 engage the end of the block during the unit-cutting operation and hand the cut unit on to wrapping- mechanism. The gripping-members are carried by the reciprocating slide 86 actuated by cam mechanism to move in unison with the material and are also rotated on vertical axes by toothed segments to engage and release the units. The paper is fed to the wrapping-machine from a roll W, Fig. 14, and is cut into lengths by the shears 112, Figs. 14 and 15. The severed articles are carried by the grippers 76 against a cut wrapper and pushed into a recess on the wheel 101 which is driven by Geneva-stop mechanism from the shaft 93. The wrapper thus is folded about three sides of the article. A side folder 153, Fig. 10, wraps one fold of paper on the fourth side, after which the wheel 101 moves to receive the next article, the fixed folder 152 folding over the remaining flap to complete the wrapping of the fourth side during this movement. Verticallymoving end folders 160, Fig. 14, connected to a shaft 163 oscillated by an eccentric, place end tucks e in the packages as shown in Fig. 20, and corner tucks f, Fig. 21, are made at each end by blades 157 having an elliptical motion. Finally slotted folding horns carrying corner tuckers 167<1> complete the folding operation. The articles are held in the pockets of the wrapping wheel by a brush 166.
Patent GB-452162-A (GB)
Title: Improvements in and relating to variable speed transmission mechanism
IPC: F16H29/22
Filed: 1935-04-09
Abstract: 452,162. Variable - speed gearing. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 9, 1935, No. 11004. Convention date, April 10, 1934. [Class 80 (ii)] Expansible toothed gear - wheels comprise toothed segments 7, guided in radial slots 12 and spiral slots 11, in discs 10, 9 respectively, the discs being turned relatively to each other automatically by the torque of the drive, opposed by a helical torsion spring 13, which latter tends to open out the segments to their maximum effective diameter. The scroll-disc 9 is secured to the driving shaft 4. The segments 7 are guided by segmental pieces 14, arranged between the discs 9, 10 and having projections 15, 16 engaging the slots 12, the segments 7 having pins 8 passing through the pieces 14 into the slots 11. Internal springs 20 press on flats 21 of the pins 8 to hold the segments normally in a radial position, from which they can yield slightly to obtain correct mesh. A double arrangement is used, an expanding-wheel on the driving shaft 4, meshing inside an internally toothed wheel 23 on an eccentrically-adjustable countershaft 24, carrying a second expanding-wheel, meshing inside an internally toothed wheel 30 on the driven shaft 5. The countershaft 24 is pivotally carried by a swinging arm 25, loaded by a helical torsion spring 28 to preserve mesh. The torque-loading spring 13a of the second expanding-wheel is of greater strength than that of the first wheel, to balance the greater torque which it transmits.
Patent GB-1284057-A (GB)
Title: Improvements in or relating to flexible couplings
Inventor: KIRSCHEY GERHARD
IPC: F16D3/68
Filed: 1971-04-23
Abstract: 1284057 Universal joints G KIRSCHEY 23 April 1971 [23 April 1970] 11004/71 Heading F2U An irregular polygon 11 comprising sides of resilient material and metal corners 17, 18 interconnects for transmitting rotation an inner body 10 to which corners 17 are connected by radial bolts 14 which compress the polygon circumferential, and a flange 12a to which corners 18 are attached by bolts 16a.
Patent GB-811126-A (GB)
Title: Epoxidised polyesters
IPC: C08G59/02
Filed: 1956-04-11
Abstract: A polyester of tetrahydrophthalic acid and a glycol is reacted with an epoxidising agent which introduces epoxide groups across at least 50 per cent of the tetrahydrophthalic acid residues.  The polyesters are made by reacting tetrahydrophthalic acid, anhydride or a monohydric ester thereof with a glycol (e.g. ethylene, diethylene, tetramethylene, pentamethylene, propylene, phenyl ethylene, neopentyl or hexamethylene glycol, or a 36 carbon atom glycol prepared by sodium or catalytic reduction of the monohydric esters of dimerised soya bean acids) and, if desired, a primary, secondary or tertiary monohydric alcohol (e.g. butanol) or a monobasic acid.  The epoxidising agent may be peracetic acid containing a small amount of a mineral acid or it may be a mixture of glacial acetic acid and hydrogen peroxide.  A preferred catalyst for the epoxidation is a cation-exchange resin of the sulphonated styrenedivinyl benzene type. The epoxidised polyesters are rendered infusible by treatment with Friedel-Crafts catalysts (e.g. boron trifluoride, aluminium chloride or a boron trifluoride-triethanolamine complex), thiomalic acid, aconitic acid, phthalic anhydride, maleic anhyaconiti acid, phthalic anhydride, maleic anhydride, sodium phenoxide, sodium hydroxide, amines, phenolformaldehyde condensates, melamine-formaldehyde condensates, urea-formaldehyde condensates and polyamide resins and may be used with these substances in coating compositions, adhesive and moulding compositions.  As solvent for the coating composition, xylene may be used.  The epoxidised polyesters may also be esterified with long-chain saturated acids to give waxes or with mixtures of saturated and unsaturated acids.  Reference has been directed by the Comptroller to Specification 786,116.
Patent GB-584187-A (GB)
Title: Improvements in or relating to projectiles for firearms
IPC: F42B14/06
Filed: 1941-08-29
Abstract: 584,187. Projectiles. JANECEK, F. K. Aug. 29, 1941, Nos. 11076/41 and 9004/42. [Class 9 (i)] A projectile for use with a converging bore firearm as described in Specification 521,388, is provided with two deformable portions arranged along its axis, the forward portion forming an enclosed space between it and a sleeve or core and serving to centralise the projectile while the rear portion serves to receive the explosive force. The deformable portions may be so arranged with respect to the centre of gravity of the projectile, that, after deformation, the centre of gravity has not appreciably shifted. In one form, Fig. 1, the body 10 is provided with a detachable nose 11 and with two shouldered portions 13, 19 on which are mounted the deformable members 17, 23 respectively, the front member enclosing an annular space and the rear member an annular space 22. In another form, the front and rear deformable members are mounted at the ends of a common sleeve enclosing a core and which is provided with an internal annular projection to engage a recess in the core ; alternatively, the deformable portions may be separated by a sleeve mounted upon an extension of the nose which is keyed to the core member. In a further form, the deformable portions are formed integrally with an internally 'tapered sleeve adapted to be secured to the core member by a central screw with a flanged head to engage a recess in the sleeve or an inturned portion on the sleeve may be adapted to engage a shaped central aperture in the core member and be expanded therein by a tapered pin. In a still further form, Fig. 6, the! front deformable member 66 ,engages a recess on an extension of the nose 62 while the rear deformable flange member 53 fits on to the core 50 and is linked to the hose extension by interfitting ribs and recesses which are caused to engage by pressing the nose extension inwardly on to the rear deformable member after the core has been inserted. A separate driving sleeve 65 is secured in a recess in the nose. The front deformable portion may be provided with escape apertures 67 for the air, or, if lubricant is enclosed, to allow its escape. In still other forms, the nose may be screwed to an extension sleeve which carries the two deformable members. In still another form for practice shots, the main body member 86, Fig. 10, is formed integrally with the rear deformable flange 88 and carries at its front end the front deformable member 66 and a separate driving band 65. For a high explosive projectile, an internal space 89, Fig. 11, is provided in a body member 61 formed integrally with a rear deformable flange member 53 and adapted to carry in a recess the front deformable member 66 ; the nose 62 is screwed on to the front end of the body member and is provided with a perforation 90 to carry a fuze.
Patent GB-587875-A (GB)
Title: Improvements in or relating to deflecting circuits for cathode ray tubes or the like
IPC: G01R13/24
Filed: 1940-07-01
Abstract: 587,875. Radiolocation. BAIRD TELEVISION. and WEST, S. S. July 1, 1940, No. 11107. [Class 40 (v)] [Also in Group XXXVI] In a deflecting circuit for a cathode-ray tube, a portion only of the time occupied by a linearly increasing voltage to reach a maximum value is used for the deflection of a cathode-ray beam. The saw-tooth waveform forming the output of a saw-tooth oscillator 1, Fig. 6, is applied to a diode 2, the cathode of which is biassed to a point some way up the saw-tooth. The waveform of the oscillator 1 is shown in Fig. 5A, whilst Fig. 5B shows the waveform of the output of the diode 2. A diode 3 has its anode negative to a point some way down the waveform shown in Fig. 5B so that it provides an output of the form shown in Fig. 6A. Tapped resistances 5, 6 may be adjusted so that there exists any degree of potential difference between the cathode of the diode 2 and the anode of the diode 3. Any particular portion of the sawtooth may thereby be selected. The trace on the oscillograph screen given by the waveform shown in Fig. 6A comprises a line having spots of light at the extremities, owing to the beam being stationary for a period at these extremities. To avoid these spots of light, the portions of the saw-tooth not employed for deflective purposes may be arranged to apply a blanking potential to the grid of the cathoderay tube, for example by employing reverse connected diodes across the main diodes or by means of a differentiative circuit. Fig. 8 shows the high-frequency oscillatory voltage applied to the saw-tooth waveform of Fig. 6A, the oscillatory voltage having ten times the frequency of the deflection frequency. One cycle in ten only is reproduced giving a pattern on the screen as shown in Fig. 9. When the oscillograph is used for range-finding by reflected pulses the resistances 5, 6 are ganged and calibrated in linear units and are adjusted until the pulse appears, whereupon the range may be read directly from the scale.
Patent GB-408451-A (GB)
Title: Manufacture of alkyl-mercury-mercapto compounds
IPC: C07F3/10
Filed: 1933-04-13
Abstract: Organo-mercury compounds are prepared by treating an alkyl-mercury compound with a mercaptobenzoxazole or mercaptobenzimidazole containing an acid group, the mercapto group being in the heterocyclic ring.  Acid groups are, for instance, the carboxylic, sulphonic or arsonic acid group.  Among the alkyl groups attached to mercury are mentioned methyl, ethyl, propyl, butyl, amyl and isoamyl. The products possess antiseptic properties; they may be converted into their alkali metal salts which are soluble in water.  Examples are given of the interaction of (1) ethylmercuric chloride with 2-mercaptobenzoxazole-5-carboxylic acid, 2 - mercaptobenzoxazole - 4 - carboxylic acid, 2 - mercaptobenzimidazole - 6 - sulphonic acid and 2 - mercaptobenzimidazole - 5 - arsonic acid (see German Specification 531,801); (2) n-propyl-mercuric chloride with 2-mercaptobenzoxazole-5-carboxylic acid.  The formul  of the products are given.  Specification 329,987, [Class 2 (iii)], is referred to. 2 - Mercaptobenzoxazole - 4 or 5 - carboxylic acid is prepared by reacting 2-amino-3-hydroxy-1-benzoic acid or 3-amino-4-hydroxy-1-benzoic acid with an alkali metal xanthate.  2 - Mercaptobenzimidazole - 6 - sulphonic acid is obtained by treating 1 : 2-diaminobenzene-4-sulphonic acid with an alkali metal xanthate. The Specification as open to inspection under Sect. 91 describes also the use of cycloalkyl-mercury compounds and the treatment of mercaptobenzthiazoles containing an acid group.  Cycloalkyl groups specified are cyclohexyl and methylcyclohexyl.  According to an example, 2 - mercaptobenzthiazole - 5 - carboxylic acid is treated with ethylmercuric chloride and the resulting 2-ethylmercury-mercaptobenzthiazole-5-carboxylic acid converted into its sodium salt.  From 2-mercaptobenzthiazole-7-carboxylic acid the 2-cyclohexylmercury compound is obtained with the aid of cyclohexylmercuric chloride.  2 - Mercaptobenzthiazole - 5 - carboxylic and arsonic acids.  The carboxylic acid is prepared by converting 3-nitro-4-chloro-1-benzoic acid into the 4-mercapto compound using sodium polysulphide and reacting the mercapto compound with potassium xanthate.  In German Specification 519,987 is described the preparation of the corresponding arsonic acid by the same process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1178734-A (GB)
Title: Tyre Building Apparatus
Inventor: NEBOUT NOEL
IPC: B29D30/24
Filed: 1967-03-09
Abstract: 1,178,734. Tyre building drums. DUNLOP CO. Ltd. 9 March, 1967 [11 March, 1966], No. 11130/67. Heading B7C. A variable diameter tyre building drum comprises circumferentially-spaced-apart support assemblies 10, 14, the radially outer surfaces of which define a support surface receiving carcase plies, the drum being expanded by inflatable bags 24, and fixed and movable abutments 21,19, respectively engageable with the assemblies to limit the degree of radial movement. The assemblies are held in their radially inner positions by noses 18 engaging the movable abutments which are moved axially by bags 27 to permit outward movement of the assemblies to a position where the noses engage abutments 19. In this condition, bags 27 are deflated causing springs 25 to move abutments 21 beneath the noses and lock the assemblies.
Patent GB-149396-A (GB)
Title: Improvements in and relating to pliers
IPC: B25B7/02
Filed: 1919-05-06
Abstract: 149,396. Evans, G., and Cresci, V. May 6, 1919. Pliers and cutters.- The jaws of pliers for use in holding round-headed bolts while the nuts are being removed therefrom are provided with transverse recesses 6, which form sharp edges 7 and are concaved both transversely and longitudinally to conform to the shape of the bolt head, and are also provided with longitudinal teeth 9. The jaws are offset laterally from the plane of the handles so as to facilitate use in difficultly accessible positions. The handles are adjustably pivoted together, as shown. Wire-cutting jaws 10 may be provided. The bolt head may be gripped by the front ends of the jaws, as shown, or by their side edges.
Patent GB-310641-A (GB)
Title: Motor car change speed gear operating mechanism
IPC: F16H59/04
Filed: 1928-04-17
Abstract: 310,641. Alvis Car & Engineering Co., Ltd., Clarke, G. T. Smith-, and Dunn, W. M. April 17, 1<9>-28, Controlling variable-speed gearing.-Controlling means for change-speed gearing C, Fig. 2, upon a vehicle comprises a rod 7, which slides and turns, and which extends along the side of the chassis frame 6 and is carried partly thereon at 8 and partly on some portion 2 of the gear mechanism at 8<1>. The rod turns to engage selectively with arm 9 forked fingers 4, Fig. 3, which project horizontally from casing 2. A swinging member 14 locks the fingers which are not to be moved by the subsequent sliding of the rod 7. Both movements are effected from a ballmounted lever 3, Fig. 2.
Patent GB-191326-A (GB)
Title: Improvements in petrol can and the like carriers
IPC: B60R9/02
Filed: 1922-04-24
Abstract: 191,326. Deslandes, A. Le F. April 24, 1922. Petrol and like cans, detachably securing to running-boards and other flat bases. - A can such as a petrol-can is secured upon a motor vehicle or elsewhere by two arms arranged parallel to the base and adapted to hold the lower part of the can between them. The two arms 3, which may be resilient, are pivoted, so that they may swing apart, to a member 4 hinged at 5 to the base 2. The free ends of the arms 3 engage under inclined slots 11 in a member 10 fixed to the base 2 and they are locked in position by a transversely adjustable clamping plate 12 with inclined surfaces which hold the arms up against the stop 11. The clamping plate 12 is formed with a. projecting tongue having an eye 20 so that it may be readily adjusted and secured by a padlock &c. to a tongue 22 on the fixed member 10.
Patent GB-1468150-A (GB)
Title: Self-piercing fixings
IPC: F16B37/06
Filed: 1974-03-08
Abstract: 1468150 Anchoring nuts, studs, or bolts R E HAYDEN 8 March 1974 [9 March 1973] 11471/73 Heading F2H [Also in Division B3] A self-piercing and clinching nut, stud, or bush 10 comprises a body 12 having a rearwardly inclined shallow frusto-conical end face 15 from which a boss 16 projects coaxially, the boss having an outer circumferential surface 20 flared in the direction away from the body 12, and a flat end face 17 which meets the surface 20 at a sharp outer edge and is of smaller radial extent than the body end face 15, the surface 20, which has longitudinal grooves and/or splines 21, and the end face 15 defining a circumferential groove. The nut shown is of circular crosssection. When a metal sheet 11 is pressed between the nut 10 and a hollow die 22, the sharp edge of the boss 16 cuts out a slug of metal from the sheet. Continued pressure causes material of the sheet 11 to flow into the circumferential groove and the grooves 21 to lock the nut to the sheet.
Patent GB-799213-A (GB)
Title: Improvements in and relating to a cloche for horticultural and like use
IPC: A01G9/16
Filed: 1956-04-16
Abstract: 799,213. Garden cloches. BULL, J. Nov. 27, 1956 [April 16, 1956], No. 11518/56. Class 20(1) A cloche comprises cover sheets of flexible translucent material heat welded to three stiffening battens 2, 3 and 4 which are supported in bends 6-10 of a wire frame with ridge and eaves the ends of the frames being pressed into the ground as required. A batten, e.g. 3, can be removed. from its bend and folded back for ventilation, as in Fig. 2. A simpler form, Fig. 1 (not shown), comprises a single cover sheet 1.
Patent GB-1161862-A (GB)
Title: Method of Manufacturing a Longitudinally Stretched Flat Strip of a Synthetic Thermosplastic Organic Polymer.
Inventor: WEISS RICHARD
IPC: D01D5/12
Filed: 1968-03-08
Abstract: 1,161,862. Stretching film strips longitudinally. DYNAMIT NOBEL A.G. 8 March, 1968 [11 March, 1967], No. 11557/68. Heading B5B. Flat film strips of synthetic organic thermoplastic polymers are stretched longitudinally while maintaining either an internal longitudinal zone or core or an external longitudinal zone or sheath of the strip at a temperature above the softening point of the polymer and while maintaining the outer zone or the inner zone, respectively, at a temperature below the softening point of the polymer. During the stretching the temperature in the internal zone may be 2‹ to 20‹ C. above the softening point and that in the outer zone 3‹ to 50‹ C. below the softening point, or vice versa. The strip may have been formed by melt extrusion of the polymer through a slot die. The polymer may be a polyolefin, a polyamide, a polyester or a polyacrylonitrile. The arrangement of the external and internal zones of the film strip with respect to one another is comparable to that of the sheath and core respectively of a composite filament of the sheath-core type. In the illustrated example, isotactic polypropylene having a softening point of 155‹ C. is melt extruded through the slot die 2 to form a film strip which is passed through a water bath 3 maintained at 25‹ C., passed through a glycerine bath 4 maintained at 150‹ C., passed under and over a pair of large diameter closely spaced parallel rolls 5 maintained at 160‹ C. at such a rate that the external zone of the film strip is heated to about 160‹ C. while the temperature of internal zone thereof remains at about 150‹ C. The film strip is thereafter withdrawn from the rolls 5 by a draw roll ssembly 6, cooled by passage through the water bath 7, dried and collected on the bobbin 11. The peripheral surface of the lower roll of the rolls 5 is mat whereas that of the upper roll is highly polished. The lower roll thus functions as a feed roll while the film strip slides over the upper roll with very little friction. The film strip is drawn at a stretch ratio of 1À8 in the stretching zone between the rolls 5 which are separated by a gap of 0À4 mm. If it is desired to stretch the film strip while the external zone is above and the internal zone below the softening temperature of the polymer, the bath 4 is maintained at a temperature above the softening point and the lower of the rolls 5 at a temperature below the softening point of the polymer.
Patent GB-143496-A (GB)
Title: Improvements in storage-buildings
IPC: E04H5/02
Filed: 1920-04-26
Abstract: 143,496. Pratt Engineering & Machine Co., (Assignees of Hurt, G. F.). May 22, 191.9, [Convention date]. Warehouses.-A storage building for fertilizer or other bulk material is formed with a sloping portion 17 at the lower end of one or both side walls to receive the toe of the piled material. The walls are thus relieved of pressure and may be made of light construction.
Patent GB-180525-A (GB)
Title: Improvements in or relating to electric irons
IPC: D06F75/26
Filed: 1921-04-21
Abstract: 180,525. Berry, H. H., and Markham, W. J. April 21, 1921. Electric hand-irons are provided with a spring- operated switch controlled by a lever 1 adapted to be grasped with the handle. The switch is held closed by a trip device which is released by the weight of the lever when this is liberated but is not released when the iron is placed on end. The plug switch 6 is carried by a pair of arms 5 pivoted at 3 and under the action of a spring 15 tending to raise the switch. The lever 1 weighted at 2 is provided with an arm 13 adapted when the lever is released to engage and break the toggle formed bv a pair of links a, b, which when straightened by the ascent of the lever serve as a trip normally holding the switch closed. When the iron is placed on end, the lever does not bear against the trip and consequently the switch remains closed.