baber/WOPTO huggingface dataset:
Patent GB-561560-A (GB)
Title: Improvements relating to tee-squares
IPC: B43L13/04
Filed: 1942-11-19
Abstract: 561,560. Drawing instruments. LUCAS, Ltd., J., and ORME, J. D. L. Nov. 19, 1942, No. 16389. [Class 97 (iii)] The end of the blade of a T-square remote from the head is provided with an attachment adapted to bear resiliently against the adjacent edge of*the drawing board. As shown, a U- shaped member a having arms a<1>, a<2> hinged. together at e is secured to the. blade c of the T-square by studs &c. b while the arm a<2> projects below the board d and is provided with a pivot g upon which is pivoted a cross arm h , arid two arms i having rollers j adapted to bear against the edge of the board d. The arms i are connected to the cross arm h by tension springs k. The arms a<1>, u2 are held. together by a spring f and undue separation of the arms a<1>, a<2> is prevented by a stop m.
Patent GB-1341422-A (GB)
Title: Method and equipment for seismic exploration
IPC: G01V1/30
Filed: 1971-05-21
Abstract: 1341422 Seismic exploration WESTERN GEOPHYSICAL CO OF AMERICA 21 May 1971 [18 June 1970 (3)] 16417/71 Heading H4D The lithographic character of a rock stratum is determined by a seismic reflection method in which the absorption of seismic energy in the stratum is measured. In the Fig. 1, embodiment the reflection signal amplitudes of a trace recorded (e.g. by a digital binary-gain method) at a surface station L along a traverse are first corrected to compensate for the geometric (generally spherical) spreading of the seismic wavefronts. Reflection coefficients R for the strata interfaces 1,2, ... i ... n are calculated from seismic velocity and density data (the velocities may be determined by a normal-movement analysis) and applied, together with the corrected signal amplitudes S and travel times t, to a computer. The attenuation coefficient αi for the stratum lying between the i the and (i + 1) the interfaces is then computed from the relationship Values of α thus found may be displayed similarly to amplitude values in a conventional record section and compared with values of α obtained from other stations L<SP>1</SP> to identify horizontal changes in lithologic character within a stratum. In a second embodiment (Figs 3 and 4, not shown) the reflection signals after correction for geometric spreading are converted to the frequency domain by a Fourier, Laplace or other integral transform operation to give transform functions |F i (#)| which are used in place of the amplitude values S in the above relationship. As the transformation involves an averaging effect, the reflection coefficients R can be assumed identical and hence omitted from the above computation of α. The attenuation coefficient as a function of travel time, (α y (t), is obtained in a third embodiment (Figs. 5 and 6, not shown) from the amplitude-time trace. (corrected for geometric spreading) recorded at a surface station, where A o  is the initial signal amplitude and R y (t) is a reflectivity function for the strata below the station. By analysing a similar trace  recorded at an adjacent surface station from the same or a similar seismic source actuation (hence the same or similar A o ) the reflectivity function R x (t) is found and, since it is assumed equal to R y (t), is used in the above relationship between Y(t) and α y (t) α y (t) for computing.
Patent GB-466990-A (GB)
Title: Improvements in or relating to mechanical production of completely vulcanised plates of padding material
Filed: 1936-06-12
Abstract: 466,990. Rubber-fibre compositions. WEISLEDER, C. June 12, 1936, No. 16463. Convention date, June 13, 1935. [Class 70] [Also in Group IX] In a process for making vulcanized plates from padding material such as horse hair, curled hair or vegetable fibre and latex, the padding material a is fed from a hopper b by feed rollers c into a casing f where it is subdivided by a combing roller d and then sprayed with latex from nozzles g. The sprayed material falls on to the grid-like floor of the casing whence it is pushed by a reciprocating rake h into the bite of rollers p which form part of a belt-conveyer, located in a drying or vulcanizing furnace (not shown). The shaped material passes into a vulcanizing furnace m where it is moulded between rollers n-; it may finally be sprayed with water to render it more malleable. The rollers c may be yieldingly mounted. The finished article may be given various shapes by varying the speed and number of the combs d and the speed of the rollers c. The rake h sinks below the grid-like floor on its idle stroke. The upper rollers p are adjustably mounted in a slotted guide u. The conveyer belts o have laterally adjustable closure edges made of rubber or leather.
Patent GB-1030586-A (GB)
Title: Improvements in housings for mowers which when in operation are supported on cushions of air, and mowers comprising such housings
Inventor: CAMPH SVEN ERIK
IPC: B60V3/02
Filed: 1965-04-20
Abstract: 1,030,586. Air cushion vehicles. FLYMO S.A. April 20, 1965, No. 16501/65. Heading B7K. [Also in Division A1]  A lawn mower adapted to be supported, in operation, upon an air cushion, comprises a housing formed as an inverted bowl, the rim of which is supported in close proximity to the ground and is of approximately rectangular profile in plan view, the lower face of the portions of the rim which are substantially normal to the fore-and-aft axis of the mower being of substantial width compared to the width of the remaining portions. It is stated that this enables the mower to lift more readily over uneven ground surfaces.
Patent GB-171953-A (GB)
Title: Improved equilibrated device for transforming into circular motion the stroke of an engine piston
IPC: F16F15/26
Filed: 1920-06-11
Abstract: 171,953. Leroy, J. E. J. June 11, 1920. Driving-gear.-The reciprooatory motion of an engine piston is converted into rotary motion of a shaft 1 through eccentrics 5 formed on plates .3, 4 keyed to the shaft, counterbalancing means operated by diametrically opposite eccentrics 16 being provided to equilibrate the weight of the piston and intermediate reciprocating parts. The pistod rod 15 is formed with a head 12 reciprocating in guideways and carrying a crosspin 11 about which are pivoted lugs 9, 10 on sheaves or collars 7 surrounding and serving to drive the eccentrics 5, ball bearings 8 preferably-being interposed. Weights 18, 19, sliding in guideways 20, 21 and connected by pins 27 to collars or sheaves 16', 17 surrounding the diametrically-opposite eccentrics 16, serve to counterbalance the weight of the reciprocating parts. In a modification, the eccentric sheaves 16<1>, 17 are connected through a frame or yoke, to a single counterbalancing weight sliding in guideways 26 forming an extension of the guideways constraining the piston rod end 12.
Patent GB-837184-A (GB)
Title: Glass cutter trolley unit
IPC: C03B33/10
Filed: 1958-05-23
Abstract: 837,184. Glass cutting apparatus. AMERICAN WINDOW GLASS CO. May 23, 1958 .[May 31, 1957], No. 16617/58. Class 56. An apparatus for cutting glass sheets shifts the cutting tool into light engagement with the glass under gradually applied pressure before applying full cutting pressure. In the apparatus shown in Fig. 9, low pressure air from a compressed air source 186 is admitted at a limited rate by valve VI to the cylinder C to eliminate slack in the cutter D operating on glass sheet 10. After a 2 second delay low pressure air is freely applied by valve V5 to cutting cylinder C to produce cutting pressure and simultaneously high pressure air is applied by valve V7 to the propulsion motor B to propel the trolley 38. The trolley moves across glass 10 and at the finish of the cutting stroke valve V3 applies air pressure which retracts cutter D to non-cutting position. The two second delay on admitting propulsion air pressure to the propulsion motor B allows the cutter cylinder C to establish full stabilised contact between D and glass 10 before starting trolley 38 on the cutting stroke. The return stroke is produced by air pressure through reversing valve V9. The valves are operated by coils E controlled through an electrical system. Specifications 725,894 and 795,836 are referred to.
Patent GB-867951-A (GB)
Title: Method of constructing a sunken tank and tanks constructed thereby
IPC: E04H4/14
Filed: 1959-05-15
Abstract: 867,951. Tanks. DALES, H. March 25, 1960 [May 15, 1959], No. 16674/59. Class 69 (1). [Also in Group I] A sunken tank, swimming bath &c. comprises a sheet 11, Fig. 2, of impervious flexible material placed in a hole 13 in the ground and anchored at edge flaps 14 by paving stones 15. The sheet may be of polyvinyl chloride reinforced with glass fibre.
Patent GB-954489-A (GB)
Title: Magnetic storage and switching devices
Inventor: RAJCHMAN JAN ALEKSANDER
IPC: G11C5/02
Filed: 1960-05-11
Abstract: 954,489. Circuits employing bi-stable magnetic elements. RADIO CORPORATION OF AMERICA. May 11, 1960, No. 16685/60. Heading H3B. In a magnetic storage or switching device, a plate 10 of magnetic material is formed with a 4x4 array of clusters 12 of apertures. A cluster of apertures 16, 18, 20 identifies a storage element. Each aperture 16 is linked with a row selecting conductor 22 which has sections between adjacent apertures of the row printed alternately on opposite faces of the plate. Successive sections on opposite faces of the plate are connected by a conductor printed in the wall of their common aperture. Column conductors 24 are similarly linked with apertures 18. A further conductor 26 is linked with an aperture 20 in each cluster. Magnetic switch.-The common winding is used as a bias and the row and column conductors 22, 24 are used to switch the element associated with a selector cluster. The element controlled by a single cluster may extend over the area enclosed in a circle 34. A separate output winding may be linked with any one aperture of each cluster. Alternatively, a separate output winding 44, Fig. 3, may be linked with a fourth aperture 40 in each cluster. Each cluster of a switch may have five apertures as in Fig. 4. Bias winding 72 is common to all the clusters. Each of the four row windings is linked with two rows, and each of the four column windings is linked with two columns. Magnetic storage.-The row and column windings 22, 24, Fig. 1, are used to control the magnetic state of the element associated with a cluster and winding 26 is used as a read-out winding and as an inhibit winding. For storage purposes, the element is confined to a circle of no more than half the radius of circle 34.
Patent GB-725068-A (GB)
Title: Improvements in or relating to documents such as loose-leaves or folders adapted to be held in binders
IPC: B42F11/00
Filed: 1953-06-17
Abstract: 725,068. Filing paper. JOCHIM, P. June 17, 1953 [June 20, 1952], No. 16722 /53. Class 146(1). Loose leaves or folders 1, 7 adapted to be held in a binder each comprise a folded edge 3, 6 provided with perforations 2 and a wire 4 or like element in the fold 5 and extending across the perforations 2 for engagement by rings or like elements in the binder, the wire being thin spring steel and permanently secured in the fold 5 by means such as adhesive or welding. The folded part 3 may be of thermoplastic material so that the wire is embedded therein. As shown in Fig. 1, the marginal edge 3 is integral with a sheet 1 and gummed on one side, the wire 4 being laid along the centres of the perforations 2 so that when the edge 3 is turned over and secured, small perforations 2<SP>1</SP> are obtained. As shown in Fig. 5, a separate strip 6 is secured to narrow sheets 7, 7<SP>1</SP> of cardboard and between them samples 8 may be secured by staples 9. The wire 4 is positively secured by pressing the strip 6 against itself along the line 6a In a modification, not shown, the strip 6 is secured to two single sheets 1, the edges of which may be secured to form a pocket. In a further modification, not shown, the folded over edge 3 extends only over part of the sheet. As shown in Fig. 8, a second wire 4<SP>1</SP> having bent portions to form loops 10 with the wire 4 is also secured in the fold 5.
Patent GB-1417278-A (GB)
Title: Joining plastics materials by ultrasonic welding
IPC: B29C65/08
Filed: 1973-04-06
Abstract: 1417278 Seaming non-metallic sheet material REHAU PLASTIKS GmbH 6 April 1973 [7 April 1972] 16731/73 Heading B5K A plastics element 1 is welded to a hollow plastics section having two oppositely disposed walls 2, 3, the element or the section being provided on its surface to be welded with raised portions 11, by inserting the element 1 into the section, the dimensions of the element 1 being such that the walls 2, 3 are forced outwards, and ultrasonically vibrating the element 1 within the section to effect welding. In the embodiment shown, the element 1 is a block for attaching the hollow section to an object and comprises a main body having ribs 11 on the four outside faces thereof. An attachment 4 having sawtooth section grooves thereon is formed integrally with the main body. Alternatively, a screw-threaded hole is provided in the body. The edges of the body remote from the attachment 4 may be chamfered at 5 to facilitate insertion into the hollow section. The ribs 11 may be triangular, pointed, studshape or mushroom-shape in cross-section. The ribs 11 soften during welding so that the section reverts to its original profile. Preferably, the height of the ribs 11 exceeds by threequarters the width of the gap between the element 1 and the walls 2, 3. In a modification (not shown), the raised portions are formed on the internal surfaces of the walls 2, 3
Patent GB-165328-A (GB)
Title: Improvements in or relating to fitting stands for footwear
IPC: A43D1/02
Filed: 1920-06-21
Abstract: 165,328. Howorth, F. W., (Singer, M.). June 21, 1920. Boots and shoes, measuring for.-A footwear fitting stand, of the kind embodying a mirror, comprises a stool adapted to stand in two positions, in one of which, Fig. 1, it forms a seat 16 and foot rest, while in the other position, Fig. 2, it serves to hold the mirror 20 at the desired inclination. The stand may comprise legs 12, 13, sides 11 and a sloping front 14, the lower extremities of the legs 12 lying in the plane of the front 14, together with a mirror 20 lying out of the normal to the plane of the front 14, and a slid able foot rest portion 18 which may act as a cover to the mirror. Measuring scales 21, 22 may be provided on the mirror.
Patent GB-152104-A (GB)
Title: Improvements in furnaces and in discharging apparatus therefor
IPC: B21J17/00
Filed: 1919-07-04
Abstract: 152,104. Parsons, Sir C. A., Cook, S. S., Carnegie, A. Q., and Ford, J. July 4, 1919. Feeding billets or similar articles from furnaces to dies. -A gas-fired furnace adapted to heat a number of similar articles, such as billets from which turbine blades are formed, is provided with a rotating frame having receptacles to receive the articles, and with means whereby the articles are removed one by one from the furnace to a die. The furnace chamber contains the horizontal revolving frame 2 having circumferential receptacles 3 to hold the billets 4, the frame 2 projecting beyond the furnace wall 5 at the place where the billets are supplied to the frame. The billets are prevented from falling by a smooth surface 6 under the frame 2 until the revolution of the frame 2 brings each billet successively over the gap 7 through which the billets drop one by one into a receptacle 8 in the oscillating discharging-arm 9. Each billet is transferred by the arm 9 over a surface 11 which terminates in a similar discharging-gap through which the billet drops into the die, after which the arm 9 returns to repeat the operation. All movements in the mechanism are derived from the lever 12 through links and levers which intermittently revolve the frame 2 by means of the ratchet gearing 18, and oscillate the arm 9 through a lost motion device 20 and a geared quadrant 21. The lever 12 may be interconnected with the die-operating mechanism.
Patent GB-834008-A (GB)
Title: Improvements in and relating to flow distribution in forced flow heat exchangers
Inventor: ROSTKOWICZ ANDREAS DE
IPC: F22B37/12
Filed: 1956-05-31
Abstract: 834,008. Heating feedwater; critical pressure boilers. MONT INTERNATIONAL ASSOCIATION Ltd. May 31, 1956, No. 16836/56. Classes 64(1) and 123(2) A steaming economizer in which liquid is forced by a pump 1 through a number of tubular elements between an inlet header 3 and an outlet header 7 or collector drum has a zone 4 in which preheating only takes place, and a zone 6 in which preheating and evaporation take place, the elements in the zone 4 being either of smaller diameter than, or bifurcated at their point of connection 5 with, those in the zone 6. The flow velocity and pressure drop in the zone 4 are thus greater than in the zone 6 and equal flow distribution is ensured. The invention may also be applied to steam generators operating at super-critical pressures.
Patent GB-356703-A (GB)
Title: A process for bleaching molasses by means of electrolytic treatment and the manufacture of yeast therefrom
IPC: C12N1/18
Filed: 1930-06-02
Abstract: 356,703. Electrolytic purification of molasses. THOMPSON, J. W., 63, Chancery Lane, and HINCHLEY, J. W., 55, Redcliffe Road, Fulham Road, both in London. June 2, 1930, No. 16961. [Class 41.] Molasses are bleached by diluting with acidulated water and subjecting the mixture to the action of an electric current until it is bleached to a predetermined degree. If the molasses is to be used for the production of yeast, the bleaching is carried to a point between 60-70 per cent, and if for other purposes, such as for use as a sweetening agent, the bleaching may be carried to any desired degree. The resultant liquor is filtered and treated with a reagent to remove impurities and neutralize the acid content. In an example molasses is diluted to contain about 15 per cent of sugars, ¢ to 1 per cent of sulphuric acid or phosphoric acid is added and the mixture is run into a cell containing graphite or carbon plates. The voltage is regulated to pass current through the cell at a density of about 1 ampere per square foot.
Patent GB-422681-A (GB)
Title: A fastener for doors and like closures
IPC: E05B65/00
Filed: 1934-06-09
Abstract: 422,681. Sliding latches. TAYLOR, W. A., Southwood, Great Woodcote Park, Purley, Surrey. June 9, 1934, No. 17148. [Class 44] A spring-pressed roller-ended latch-bolt 6 particularly for a refrigerator door is withdrawable from one side by a bell-crank lever 5 and from the other side by a push-rod 26 acting through the lever, and is held withdrawn until the door is closed by a spring- pressed pivoted catch 12 engaging a notch 15 in the latch-bolt. To render the latch suitable for doors of either hand, the catch 12 can be mounted on either side of the bolt 6 and has a double-bevelled end 18, 18<a> to co-operate with inclines on projections 23, 23<a>, of the keeper 19 which has a recess to receive the bolt and an incline 36 to allow the door to be closed if the latch should be previously projected. The latch is provided with an apertured lug 32 adapted to receive a padlock or locking bar to lock the latch.
Patent GB-561630-A (GB)
Title: Improvements in or relating to power driven cultivators and like agricultural appliances
IPC: B62D51/00
Filed: 1942-12-07
Abstract: 561,630. Agricultural tractors. HARRISON, C. H. Dec. 7, 1942, No. 17357. [Classes 79 (i) and 79 (iii)] A light agricultural tractor such as a cultivator or hoe is provided with a pair of wheels P secured to a tubular member or axle Mz which rotates in bearings in a fixed casing M<1> and is formed with a wormwheel M driven from a petrol engine or electric motor F through a worm L. In the construction shown, the engine F and the casing M<1> are fixed on a frame A which is V-shaped in plan, its apex at B having secured thereto the steering handle C. The cultivating tools S are carried by an arm or arms A<x> secured to the frame A.
Patent GB-582303-A (GB)
Title: A new or improved calendar clock
IPC: G04B19/243
Filed: 1944-09-12
Abstract: 582,303. Calendar clocks. MILTON, A. Sept. 12, 1944, No. 17380. [Class 106 (iv)] A calendar clock comprises. a clock, a series of rotatable members having display faces on which are inscribed respectively day names, date numbers and month names, transfer mechanisms whereby the clock drives the dayindicating member and whereby the latter drives the date member, means for manually turning the month-indicating member, and means whereby such movement advances the date member to display number 1 when changing from an expiring month having less than 31 days, said date member being rotatable independently of the day-indicating member. In the calendar clock shown, which may be driven electrically or by clockwork, the hour wheel of the clock has associated with it a spur wheel 6 meshing with a spur wheel 7 having. twice the number of teeth so that the latter makes one revolution in 24 hours. A projecting finger 8 engages with pins on the rear face of a day indicating member 9 and peripheral teeth on the latter engage in recesses in the periphery of a date drum 12, which rotates about a vertical axis, so that both the dayindicating member and the date drum are advanced one step every 24 hours. In any set position, the peripheral teeth on the day indicating member are clear of the recesses in the date drum, enabling the latter to be rotated independently. A month-indicating drum 16 is rotated manually by means of a knob 27 and a cam ring 18 attached to said drum operates a spring-loaded lever which engages with a lug on the date drum, advancing the latter to display member 1 when the month indicator is rotated in changing from a 30-day month. The change from February to March may be effected manually or the range of lever movement may be made sufficient to advance the date drum from number 28 to number 1.
Patent GB-256380-A (GB)
Title: Improvements relating to hangers for coats and like garments
IPC: A47G25/32
Filed: 1925-07-07
Abstract: 256,380. Boyd, R. P., and Bradley, T. July 7, 1925. Coat hangers.-A suspension hook 4 is conrected to the wooden bar 5 of a garment hanger by forming in the shank of the hook circumferential grooves 4a which form shoulders 4b and truncated conical surfaces. A hole 5a is bored in the wood of a diameter rather less than that of the hook shank, and the latter is then forced into the hole, which may have been moistened. The resilience of the wood causes it to enter and fill the circumferential grooves, anchoring the shank in the wood. This method of connection allows rotation of the hook without axial movement.
Patent GB-398786-A (GB)
Title: Improvements in or relating to fire bars for travelling grates
IPC: F23H11/00
Filed: 1933-06-19
Abstract: 398,786. Firebars. LINIGER, M., Visp, Wallis, Switzerland. June 19, 1933, No. 17396. [Class 51 (i).] A fire bar for travelling grates of the kind in which transverse firebars are moved through the furnace on tracks engaged by the ends of the bars is provided at its ends with sleeves 2 secured by rivets 3 to the core 1 and intermediate the sleeves with elements 4 threaded loosely on the core. The sleeves and elements may be round, rectangular, octagonal or other shape in cross section. The elements are of reduced section at one or both sides as shown at 5. The sleeves may be made of iron, steel or gun metal and the elements of refractory material.