baber/WOPTO huggingface dataset:
Patent GB-564438-A (GB)
Title: Improvements in storage racks
IPC: A47B88/00
Filed: 1943-04-30
Abstract: 564,438. Storage racks. EVERTAUT, Ltd., and BRADBURY, A. A. April 30, 1943, No. 6852. [Class 52 (i)] The drawers or trays 8 of an open fronted storage rack slide on bearers 6 with bent down ends 7 so that when a drawer is pulled out until stopped by a raised part 15 of the drawer back, engaging a transverse member 5 of the rack, the drawer is left tilted downwards for convenience of access, but the drawer can also be removed by tilting its front upwards, as shown dotted, Fig. 5, until the drawer back 15 is lowered to clear the fixed stop 5. The drawers are formed with grooves 13 to accommodate the bearers 6. The front of a drawer slopes to facilitate removal of articles,' the top edge being lower than the sides and may be flanged at 9 and formed with a hook 11 to receive a dependent card holder 12. Another card holder 10 may be fixed to the flange 9. If the holder 12 is needed, the drawer can be pulled out by fingers entering the lowered front top ; otherwise the flange 9 can be used as the pull out. The tops 14 of the drawer sides extend beyond the sides proper, so that the drawers can be nested within each other.
Patent GB-1235219-A (GB)
Title: Sum and difference antenna
IPC: H01Q25/02
Filed: 1969-02-07
Abstract: 1,235,219. Aerials. THOMSON-CSF. 7 Feb., 1969 [9 Feb., 1968], No. 6881/69. Heading H4A. An aerial system comprises a linear array of radiating elements, such as vertical dipoles, a further element in a central plane of symmetry of said array, and feeding means for alternatively forming a first directive radiation pattern or a second broader directive radiation having a minimum in the direction of the maximum of the first pattern. For forming the said first pattern, at least two symmetrical groups of elements, one on each side of the said plane, are fed in phase, and, as described, an R.F. source G, Fig. 5, is coupled through a switch R to a distributer # e  having three in-phase outputs. The said outputs are coupled respectively to the sum ports of three four-arm hybrid junctions T 1 , T 2 , T 3 . The hybrid T 3  supplies the two elements a 1 , a 2  of a central group A of the array. The hybrid T 1  supplies the four elements of a group B at one side of the group A, and the four elements of a group C at the other side of the group A. The hybrid T 2  supplies the four elements of a group B 1  beyond the group B, and the four elements of a group C 1  beyond the group C. Thus, all eighteen elements of the linear array are fed in phase. For forming the said second pattern, the R.F. source G is coupled through the switch R to a distributer # e  having three outputs, two of which are in phase-quadrature with the third. The latter is coupled to the difference port of the hybrid T 1 , and the two former are coupled respectively to the further element D, and to the difference port of the hybrid T 3 . Consequently, the four elements of the group B are fed in anti-phase to the four elements of the group C. The elements a 1  and a 2  of the group A are fed in antiphase to each other and in quadrature phase to the elements of groups B and C. The further element D is also fed in phase quadrature to the elements of groups B and C. If the number of elements in the central group is odd, all the said elements are fed in phase with those of one of the lateral groups of elements when forming the said second pattern. In a second embodiment, Fig. 3 (not shown), a linear array has only one element in its central group (A), but is otherwise as in the first embodiment. Furthermore the said group (A) is not energized when forming the said first pattern. It is stated that the second directive radiation pattern covers the secondary lobes of the first directive radiation pattern (Fig. 4, not shown).
Patent GB-456307-A (GB)
Title: Improvements in or relating to methods of producing textiles that are resistive against shrinking and creasing
IPC: D21H17/60
Filed: 1936-03-07
Abstract: In the production of crease-resisting textiles, the material is impregnated with carbamide-aldehyde solution and condensation effected in the presence, as catalyst, of a mixture of aliphatic acids having a M.P. above 110 DEG  C. and a low coefficient of dissociation, particularly dicarboxylic acids, together with ammonium salts of mineral acids.  Suitable acids are succinic and malonic. Suitable ammonium salts are the chloride and sulphate. Fabrics so treated are also shrink-resisting, the fabric being stretched to its original dimensions in the impregnated state and then dried.  In examples: (1) for light fabrics of artificial silk or cotton, 10 kilogms. urea are dissolved in 60 litres of cold water and the solution mixed with 500 gms. succinic acid and 75 gms. ammonium chloride in 10 litres of water.  When ready for use, 30 litres of 40 per cent formaldehyde are added, and the fabric passed through, and stretched; (2) 100 gms. urea, 1 gm. malonic acid and 4 gms. ammonium sulphate are dissolved in 600 ccs. water, and the solution made up to 1 litre with 40 per cent formaldehyde solution.  The fabric is passed through, squeezed, stretched, and dried at 50-100 DEG  C.  No further condensation is necessary.
Patent GB-735187-A (GB)
Title: Improvements in centrifugal clutches
IPC: F02N5/04
Filed: 1952-03-18
Abstract: 735,187. Turning-gear. PECK, W. J. June 18, 1953 [March 18, 1952]. No. 6964/52. Class 7(5). [Also in Group XXIV] A friction clutch in an inertiatype engine-starter, has coupled shoes 65 carried by a driving member 42 and moved simultaneously radially outwards into frictional engagement, with a servo action, with a driven drum 9 by a centrifugal mass 46 which pivots at 44 in opposition to a compression spring 47, the line of action of which approaches the pivot 44 as the clutch engages, to reduce the opposing force, the mass being also opposed initially by a spring-loaded detent 67, the overcoming of which is followed by rapid clutch engagement. The friction shoes pivot on pins 63, carried eccentrically on resilient bushings 64 on discs 60 which are turned in axial holes 61 in a flange 57 of the driving member 42 to effect radial movement of the shoes 65 by pivotal movement of the mass 46 which, through teeth 54, Fig. 2, cams or links, turns a sleeve 56, in toothed cam or link engagement at 58, Fig. 3, with the discs 60 One or more detents such as 67 may engage the sleeve 56 instead of the mass. A counter balance mass 68 is provided. In the inertia-type engine-starter shown, the input member 42 of the clutch is attached to a flywheel 1, which is rotated through multiplying gear including a one-way clutch 34, by a handle 22, or by direct electric drive. The handle 22 can also be moved axially between a normal speed position, shown ,meshing bevels 24, 25, and a reduced speed starting position, meshing bevels 27, 28, as described in Specification 735,174. An extension sleeve of the output clutch drum 9 has internally splined engagement with an engine-turning pinion 12 which, on initial rotation of the handle, is moved axially into mesh with the usual engine flywheel teeth, by screw-threaded engagement between a sleeve 14, fast with an additional wheel 40 of the gear-train, and a member 15 which is pressed by a spring 20 into yielding toothed engagement at 18 with the shaft of the starter pinion 12. Initial rotation engages the pinion, whilst speed increase engages the centrifugal clutch to crank the engine, which latter, on starting, screws the pinion 12 back out of mesh. Reduction gear may be provided between the clutch output member 9 and the engine.
Patent GB-471857-A (GB)
Title: Improvements in or relating to levers, crank arms and the like and methods of manufacturing same
IPC: F16H51/00
Filed: 1936-03-09
Abstract: 471,857. Construction of levers. SMITH, S. March 9, 1936, No. 6971. [Class 80 (iii)] [Also in Groups XXII and XXVI] A sheet-metal lever, crank arm, or the like of hollow box-girder form, especially a lever for actuating a motor vehicle or aeroplane brake or other mechanism, is constructed from one or more pieces of sheet metal bent or pressed to shape, portions overlapping in the completed article to form walls of double thickness, the overlapping portions being rigidly connected together along the length of the lever at or by edges of the overlapping portions. A blank 1, Fig. 5, is cut away at 3 and provided with holes 4, 5, 6, 7, and is bent to channel form, one channel engaging within the other, Fig. 4, and the edges 9 of the outer member are turned over to secure the parts. A slit 10, Fig. 1, extends up to the holes 7 in order that a rod &c. passing through the holes 4 may be clamped by a bolt passing through holes 5. Recesses 11 or further holes correspond to the holes 5. A strengthening insert 12, Fig. 6, of horse-shoe section, which may be welded in position, is formed with holes and slits to register with those of the blank. A projecting lip 16 extends around the folded end of the lever and may continue completely about the hole. The extension may form a bush for the bolt. In a construction wherein two channel members are nested to form the hollow body, bushes 19, Fig. 11, are provided to form bearings and stiffening inserts 21 may be welded to the lever. Splines or teeth may be formed on the bore to grip the member on which it is mounted. A lever which is also formed from two channelled sections comprises inwardly or outwardly directed flanges 22, Fig. 12, for engaging the rod 23. Reinforcing washers 25 or a single reinforcement 26 may be provided. A lever of T-section and an arm suitable for mounting a vehicle lamp are formed by similar methods. A lever formed from a single blank is stiffened by an insert 12, Fig. 24, a resilient mounting disc 46 of rubber being secured to the seating portion 45, and a cap 48 fixed by rivets 49. A lever formed from two pressings has a flexible disc 46, Fig. 27, secured in a housing 52, and an operating disc 53 is secured to the opposite end. A clutch operating member may engage a central bridge piece 56 secured within a flange 54, and an adjusting screw engages a nut 58. The control from the pedal engages the seating 53. In a modification, a headed stud replaces the seating 53, and a distance piece of I-section is provided intermediate the length of the lever. According to the Provisional Specification the edge portions of the two parts of the blank may be butted and welded together.
Patent GB-224453-A (GB)
Title: Improvements in turning gear for starting internal combustion engines
IPC: F02N11/08
Filed: 1924-03-19
Abstract: 224,453. Royce, F. H., and Rolls-Royce, Ltd. March 19, 1924. Addition to 172,153. Starting prime-movers.-The parent Specification describes an electric starter in which a system of circuits, controlled by a single hand switch, effects the axial movement of the starter pinion c into engagement with the engine flywheel d and the closing of the main motor circuit, the circuit of the electromagnet f controlling the axial movement of the pinion c then being automatically broken, so that the pinion is free for automatic disengagement when the engine starts. According to the present invention, a few turns of the main circuit of the battery a and motor b are arranged on the core of the electromagnet i of the switch i<1> which, while the hand switch k is still closed, causes and maintains the break of the circuit of the electromagnet f. The motor b is provided with a supplementary field winding b<2> in the circuit of the electromagnet f, so that the motor turns slowly before the main circuit is closed.
Patent GB-854398-A (GB)
Title: Improvements in and relating to cargo-hatch covers, comprising two or more sections
IPC: B63B19/203
Filed: 1959-03-03
Abstract: 854,398. Hatch covers. TELL E. E., VON. March 3, 1959 [March 6, 1958], No. 7254/59. Class 113. A cargo hatch cover comprises sections 4, 5, 6 hinged together at 8 and 9 and to the deck at 7. A rope 12, hooked to the eye 10 and passed through the eye 18 and snatch block 17, when pulled lifts the sections 4 and 5 to the vertical position and moves the section 6 towards the hinge 7. The section 6 is raised by disconnecting the rope from eye 18 and pulling directly on the eye 10 via the snatch block 17. The sections 4 and 5 are locked in the vertical position by a pin passing through eye 19 and the eye 20, secured to the adjacent ships structure 21. The section 6 is lowered by a similar arrangement to that by which it is raised and the sections 3 and 5 are lowered by connecting the rope 12 to an eye member 29 which is provided with a stop to retain it perpendicular to the top of the section 5. Arms 33 locating on blocks 37 serve to locate the cover sections 4 and 5, in the raised position, so that a locking pin may be fitted easily into the eyes 19 and 20. The cover may comprise four sections, the section furthermost from the hinge 7 being also provided with a member 29 and the arms 33 may locate directly on a flange of the section 5.
Patent GB-178279-A (GB)
Title: Improvements in combination grates or fire places
IPC: F24B1/182
Filed: 1921-03-07
Abstract: 178,279. Brodie, G. G., and Coleman, A. B. March 7, 1921. Cooking - stoves; d o o r s ; boilers, arrangement of.-In a combination open fire-place and range the gases pass successively through a boiler flue, beneath a hot-plate substantially at the level of the boiler flue, and through the oven flues; the oven being above the hot-plate so as to provide a recess or hot-chamber between the two. The range shown comprises an open fire-place A in which is an L-shaped boiler having a back limb e and a forwardly-extending limb e<1>, beneath which the gases pass through a flue f to the flue h beneath the hot-plate k; they subsequently pass up the flue m to the flues m<1>, m<2> below and above the oven n, and thence through an exit o to the chimney. A baffle m<3> regulates the distribution of the gases to the flues m', m<2>. The exit o may consist of a series of openings with " hit-and-miss " valve, but preferably the gases are controlled by a hinged damper p between the flues f, h. The boiler preferably has fins e<2> cast on it, which may support the fire-brick back c. A shutter s may be provided which closes the front of the space above the hot-plate k to form a second oven; and when not in use is turned into anhorizontal position and slid beneath the roof of the recess. A tiled recess may be arranged abovethe top over flues for heating plates &c., and a hot-plate and oven may be provided on each side fire-place, the boiler then having a a forwardly-extending limb on each side...
Patent GB-346118-A (GB)
Title: A process for preparing physiologically active quinazoline derivatives
Filed: 1930-03-05
Abstract: Dihydroquinazolines of the type 6-R-3-(4-R-phenyl)-3 : 4-dihydroquinazoline, in which R represents an alkyl or alkoxyl group or a hydrogen atom, are converted into their quaternary bases by the customary methods, e.g. by alkylation or arylation with aliphatic or aromatic halogen derivatives or with dimethyl sulphate, followed by treatment with alkali.  The resulting compounds contain not only a hydroxyl group attached to the nitrogen atom, but also a group R1 which may comprise a saturated or unsaturated alkyl group, a -CH2 CH2 OH group or an ester derivative thereof, or a phenyl group.  The products possess therapeutic properties.  According to the examples, (1) 6 - ethoxy - 3 - (4-ethoxyphenyl)-3 : 4 - dihydroquinazoline is heated with methyl iodide and the free base liberated by means of alkali; (2) 6-methyl - 3 - (p - tolyl) - 3 : 4 - dihydroquinazoline is heated with alkyl bromide or ethylene chlorhydrin and the product decomposed with alkali. 6-Ethoxy-3-(4-ethoxyphenyl)-3 : 4-dihydroquinazoline is prepared by ethylating 6-nitro-3-hydroxybenzaldehyde with ethyl iodide under pressure, condensing the product with p-phenetidine, reducing the nitro group with sodium sulphide, hydrogenating the -CH=N-group with alcoholic sodium, and finally treating with formic acid to effect ring formation.
Patent GB-104275-A (GB)
Title: Improvements in Cases for Spectacles, Eyeglasses and other Articles.
Inventor: NEWBOLD HARRY
IPC: A45C13/34
Filed: 1916-05-23
Abstract: 104,275. Newbold, H. May 23, 1916. Lids and covers; opening-arrangements.- Spectacle and other cases are provided with an internal or external spring having a central cranked portion a with downwardly bent ends b, the portion a being attached to a lug g on the lid, and the ends b secured by lugs f to the body, which is cut away at h. By pressing on the lug g, the spring is moved over its dead-centre and then snaps the lid fully open.
Patent GB-1521292-A (GB)
Title: Dewatering of slurries
IPC: B01D35/14
Filed: 1975-02-21
Abstract: 1521292 Dewatering apparatus G F SHATTOCK 5 Feb 1976 [21 Feb 1975] 7368/75 Heading B1D Apparatus for dewatering a slurry comprises a recycle conduit 212 which leads from and back to a bulk slurry supply means (not shown), and at least one branch conduit 219 leading from conduit 212 to supply slurry to screen 12, the conduit 212 having a portion 233 which is movable up and down to vary the flow of slurry through conduit 219. The screen 12 may pass between a pair of pressing rollers 16. The screen 12 and upper roller 16 may be cleaned by a brush and scraper respectively (not shown). The apparatus may include means for centralising the screen. The movement of the portion 233 may be controlled automatically.
Patent GB-698701-A (GB)
Title: Novel unsymmetrical -a,-Ï-bis-(trialkyl-ammonium)-thia-alkane salts and the manufacture thereof
Inventor: MORRISON ALEXANDER LANG
IPC: C07D295/08
Filed: 1951-03-30
Abstract: The invention comprises a ,o -bis-(trialkylammonium)-thia-alkane salts of formula <FORM:0698701/IV (b)/1> where R1, R2, R3 and R4 are alkyl groups of 1-4 C atoms or, together with the N atoms to which they are p  attached represent piperidino or morpholino groups, A and B are different straight or branched chain alkylene groups containing at least 2 C atoms, exclusive of side chains, in each, and having a combined chain length exclusive of alkyl side chains of 4-14 C atoms and X- is a monovalent anion of a mineral acid (other than hydrofluoric acid) or an alkyl ester thereof.  They are made by condensing the appropriate dialkylamino-piperidino-or morpholino-alkyl halide with the necessary dialkylamino-piperidino- or morpholino-alkyl thiol in the presence of an alkaline condensing agent and quaternizing the product with an alkyl ester of a mineral acid or by condensing the respective quaternary salts of the halide and mercaptol.  The latter method is not preferred since a tedious separation of various salts is necessary.  Hydrochloric, hydrobromic, hydriodic and sulphuric acid and methyl and ethyl esters are specified.  Alkali metal alcoholates, e.g. sodium ethylate or methylate, are specified condensation agents.  Condensations involving free bases and thiols are preferred in an inert, e.g. nitrogen, atmosphere.  The compounds inhibit neuro-hormonal transmission.  In examples: (1) 5 - thia - undecane - 1,11 - bis - (trimethylammonium iodide) is made by condensing 4-dimethylamino-butane-1-thiol with 6-chlorhexyl-dimethylamine and treating the product with methyl iodide; (2) 3-thia-hexane-1,6-bis-(trimethylammonium iodide) is made by condensing 2-dimethylamino-ethane-thiol with 3 - chloropropyl - dimethylamine and treating the product with methyl iodide and (3) 2-methyl-3 - thia - pentane - 1,5 - bis - (trimethylammonium iodide) is made by condensing 2-di-methylamino - ethane - thiol with 2 - chloro - 1 - dimethylamino - propane and treating the product with methyl iodide.  The condensations are effected in ethanol under reflux and in a nitrogen atmosphere in the presence of sodium ethylate. Specifications 690,576 and 698,506 are referred to.
Patent GB-888253-A (GB)
Title: Improvements in or relating to electronic clocks or watches
IPC: G04C21/00
Filed: 1958-03-07
Abstract: 888,253. Clocks and watches. JAHRESUHREN-FABRIK G.m.b.H. A. SCHATZ & SOHNE. March 7, 1958 [March 9, 1957], No. 7426/58. Class 139. An electronic timepiece comprises a transisterised oscillatory circuit. In the first example, Fig. 1a, the circuit comprises a transistor 8 and coupling coils 13, 13a, 13b, capacitors 11 and 12 and temperature stabilizing resistors 9 and 10. The hands are driven by an electromagnetically operated pawl-andratchet mechanism. In a modified circuit, Fig. 1b, the coupling coil 13 is short circuited and the resistor 10 is replaced by a coil which cooperates with an oscillating permanent magnet or by a capacitor one plate of which is carried by an oscillatory member. The oscillatory circuit may be triggered by photoelectric means or by magnets carried by a balance to co-operate with a stationary coil or coils. In another example, Fig. 7, the circuit is in the form of a freely oscillating monostable multivibrator comprising transistors 45, 46, capacitors 47, 48 and resistors 49, 50, 51, 52. The frequency of oscillation may be changed by increasing or decreasing the value of the resistor 51. The multivibrator circuit may be modified as shown in Fig. 8. In another example, the coupling between two coils forming a differential transformer is altered by the expansion and contraction of the balance spring. Means may be provided whereby the battery can be recharged from the mains. For setting purposes the frequency of the oscillatory circuit may be increased by switching an additional capacitor into the transistor base circuit. If the timepiece has a striking mechanism such mechanism may comprise a drum 60, Fig. 9, having sets of studs 61-64 which co-operate with a spring contact 65 to energize a coil 66 the armature 67 of which serves as a hammer or clapper. A record tape or disc may also be used for this purpose.
Patent GB-1083786-A (GB)
Title: Improvements in or relating to optical apparatus
IPC: G02B27/42
Filed: 1966-02-21
Abstract: 1,083,786. Optical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 21, 1966 [March 15, 1965], No. 7451/66. Heading G2J. The arrangement relates to improving the resolution of an optical system. In the system comprising lenses L 1 -L 5  and an aperture stop 25, an object 29 is imaged at 24 and the resolution of the system is limited by the spatial frequencies transmitted by the stop 25. As shown the object 29 only has variations in transparency in the one direction so that the diffraction pattern created in the plane of stop 25 is in the form of a bar of light G the extremities of which, corresponding to the higher spatial frequencies, are cut-off. By providing a diffraction grating 36 in which the first order diffraction pattern predominates having its periodic axis at an angle, e. g. 45‹, to that of the object 29, three bars of light J, G, H are produced, due to the system appearing to be the same as though the object had (a) its own spatial frequencies (b) those of the grating 36, (c) those corresponding to the vector sum of, and (d) those corresponding to the vector difference between, the spatial frequencies (a) and (b). Since the patterns J, H, are displaced relatively to pattern G, portions of the extremities of J, H, are passed by the stop 25 which are rejected in pattern G so that by providing a second diffraction grating 37, which is identical to that 36 and similarly orientated, a pattern is provided in the focal plane of lens L4 which corresponds to a greater resolution of the system than if gratings 36, 37 were absent but also corresponding to undesired spatial frequencies. These latter are filtered out by a mask 28 having a horizontal slit and the final image appears at 24.
Patent GB-234760-A (GB)
Title: Improvements in spiles or vent-pegs
IPC: B65D51/16
Filed: 1925-03-20
Abstract: 234,760. Wright, J. March 20, 1925. Vent-pegs.-A vent-peg con sists of a tubular rubber &c. body a of taper form having a tubular core b of metal or other hard material, the lower end c of the body a being flattened to bring the opposite sides into contact to form a non-return valve.