baber/WOPTO huggingface dataset:
Patent GB-1248944-A (GB)
Title: Method of and apparatus for singulating articles
Inventor: HEANEY RICHARD
IPC: B65H3/08
Filed: 1968-11-18
Abstract: 1,248,944. Feeding sheets. FMC CORP. 18 Nov., 1968 [20 Nov., 1967], No. 54531/68. Heading B8R.  Sheets (e.g. letters) A, stacked on edge, are advanced to a station 20 where alternately operating vacuum heads 26 and 27 separate the foremost sheet. Pile supports.-The sheets A are carried in trays 23, Figs. 1 and 2, which are advanced to and through station 20 on roller conveyer 24. Rollers 124, 125, Fig. 2, are driven by hydraulic motor 131 to present the foremost sheet for separation in a position determined by detector fingers 25. To relieve pressure on the vacuum heads and to assist separation, trays 23 may be moved in the reverse direction away from the heads when required. Separators.-Vacuum heads 26 and 27, Fig. 4, are movable in the paths shown in Figs. 6 and 7 under the control of links 44 and 48 which are moved in response to the movement of slides 45, 49 on rod 46. Slides 45 and 49 are moved in response to followers 53 which engage surfaces 41, 42 of driven barrel cam 40. The heads 27 and 28 are further articulated by parallelogram linkage 73, 74 which permits pneumatic cylinder 70 to move the heads into contact with the sheets in the stack. As shown, Figs. 6 and 7, one head removes the foremost sheet from the stack as the other deposits the previously separated sheet on easel 28, suction being applied to the first mentioned head and air blast to the last mentioned. The detector 25 is movable away from its detecting position at the face of the stack to allow removal of the foremost sheet. Sheet carriers and forwarders.-Sheets released from the heads on to easel 28 are moved therealong by propelling lugs 30 carried on tape 29 running in recess 31.
Patent GB-1443135-A (GB)
Title: Derivatives of 1-phenoxy-3-aminopropan-2-ol and processes for their preparation
IPC: C07D307/52
Filed: 1974-12-19
Abstract: 1443135 Phenoxypropanolamines CASSELLA FARBWERKE MAINKUR AG 19 Dec 1974 [27 Dec 1973] 54911/74 Heading C2C [Also in Division A5] Compounds of the general Formula I (X =-CR 1  =CHCOAr, -CHR 1 CH 2 CH(OH)Ar; R 1 =H, Me; Ar=aromatic or quasi-aromatic 5- or 6-membered monocyclic ring linked through a carbon atom and having one or two N, O and/or S atoms and optionally substituted by one or more methyl groups; A = alkoxymethyl, alkoxyalkoxy, hydroxyalkoxy, NHCONR 2 R 3 ; R 2 , 3 = H, alkyl, alkenyl, cycloalkyl or NR 2 R 3  = saturated 5- or 6-membered monocyclic ring optionally having an O or S atom), their aldehyde condensation products and acid addition salts are prepared by (a) reacting the corresponding phenoxypropanolamine with XY (Y halogen or (X=-CR 1 =COHCOAr)OH, OK, ONa), (b) reacting a corresponding 3-phenoxy-2-hydroxypropyl halide and/or phenoxymethyloxirane with XNH 2 , (c) reacting the corresponding phenol with XNHCH 2 Z (Z=oxiranyl and/or 2-halo-1-hydroxyethyl), (d) reducing a product in which X=-CR 1 =CHCOAr or the corresponding compound in which the CHOH group is replaced by CO, (e) reducing the'compound corresponding to a product in which X= -CHR 1 CH 2 CH(OH)Ar but in which the other CHOH group is replaced by CO or (f) reducing a compound of Formula I but in which or the corresponding compound in which the CHOH group is replaced by CO, optionally followed by conversion to an oxazolidine by condensation with R 4 CHO (R 4 =H, C 1-4  alkyl) or salt formation. The preparation of starting materials for processes (a), (b) and (c) and benzyl derivatives of certain of the phenols and amines (XNH 2 ) is described.
Patent GB-1294360-A (GB)
Title: Process for the preparation of a planographic printing forme for printing continuous tones
IPC: G03F7/09
Filed: 1969-11-11
Abstract: 1294360 Photographic processes KALLE A G 11 Nov 1969 [9 Dec 1968] 55102/69 Heading G2C A process for producing a continuous tone printing plate comprises exposing to a continuous tone original a material comprising a support roughened to a depth between 0À5 and 40 microns coated with a layer containing (i) a diazonium salt or a condensate thereof with an aldehyde, or an o-nitro-benzaldehyde and (ii) a non-lightsensitive compound which absorbs light in the region of the maximum absorption of the lightsensitive compound and developing to remove the more soluble areas. Specified light-absorbers are ultraviolet absorbers such as azobenzines, azomethines, dinitrophenyls, benzophenones, anthraquinones, chalcones, pyrazolines, benzotriazoles or dyes. The layer may also contain a narlak or resole resin, polyvinyl acetate or polyvinylpyrrolidone. In the examples, a mechanically roughened aluminium support optionally treated with polyvinylphosphoric acid is coated with the light-sensitive layer and exposed to a step wedge to produce more steps than a material without the light-absorber.
Patent GB-1500139-A (GB)
Title: Shower head and associated fluid flow controller
IPC: F16L55/04
Filed: 1974-12-20
Abstract: 1500139 Shower apparatus VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY EDUCATIONAL FOUNDATION Inc 20 Dec 1974 [20 Dec 1973] 55110/74 Heading A4N [Also in Division G3] A shower head has a supply line provided with a device for limiting the flow-rate of a liquid to a predetermined value. The device comprises a convergent-divergent nozzle provided with a throat  portion 28 having a length substantially equal to its diameter to produce cavitation in the liquid when the inlet pressure of the liquid reaches a predetermined value. Thus any increases in pressure of the liquid beyond that value do not materially alter the flow-rate since their effect is substantially neutralized by the cavitation. The  divergent portion 32 of the nozzle is designed to ensure dissipation of the cavities formed in the liquid before it leaves the device and has an outlet 18 which is approximately one and one-half times the diameter of the throat portion. The angle # of divergence may be four degrees. The device may be made of brass, stainless steel or plastics.
Patent GB-1449832-A (GB)
Title: Textile fibrous structures for cleaning purposes and a process for their preparation
IPC: C11D17/04
Filed: 1973-11-30
Abstract: 1449832 Cleaning pads HENKEL & CIE GmbH 30 Nov 1973 [2 Dec 1972] 55618/73 Heading A4F [Also in Division C5] A cleaning cloth or pad comprises a fibrous textile structure of a water-insoluble high polymer with a content of carbonyl groups present mainly as an alkali metal or an ammonium salt or as a salt of an organic ammonium base, the structure being impregnated with at least one non-ionic detergent from the class of C2 to C4 alkylene oxide condensates, the turbidity point of a 1 wt per cent aqueous solution of which lies below 80‹C. The fibrous structure may be obtained by carboxymethylation of cellulose or by graft polymerization of unsaturated carboxylic acids or cellulose, the graft polymers being converted by treatment with aqueous-alcoholic alkalis into the alkali metal or ammonium salts. The non-ionic detergent may be as described in Specification 55616/73.
Patent GB-1112507-A (GB)
Title: A fluid operated engine
IPC: F04B43/073
Filed: 1966-12-14
Abstract: 1,112,507. Fluid-pressure engines. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. Dec.14, 1966 [Jan.10, 1966], No. 56000/66. Headings F1A, F1M and F1S. A fluid operated reciprocating engine comprises a casing, a diaphragm assembly comprising a first diaphragm 26 sealed across the casing and spaced therefrom, a second diaphragm 27 of greater area also sealed across the casing, the first and second diaphragms being connected to flex in unison, a first inlet 33 for working fluid formed in the casing to the side of the diaphragm assembly remote from the first diaphragm, a second inlet 31 for working fluid formed in the casing between the first and second diaphragms and means responsive to flexing of the diaphragms to control the passage of working fluid to and from the casing. The means to control the passage of working fluid may be adjustable to vary the amount by which the diaphragm assembly flexes between successive strokes. The engine may operate on compressed air and work a pump for delivering corrosive and other fluids or gases. The pump may also be used as a vacuum pump. In a modification (not shown) the pump comprises a flexible bellows connected to the diaphragm assembly.
Patent GB-1496160-A (GB)
Title: Servo steering system for motor vehicles
IPC: B62D5/06
Filed: 1974-12-30
Abstract: 1496160 Motor vehicle servo-steering systems K-H THOMAS [trading as LANGEN & CO] 30 Dec 1974 [1 June 1974] 56036/74 Heading B7H A servo-steering system for motor vehicles includes a valve mechanism which in use controls supply of fluid to and exhaust of fluid from at least one working chamber 14, 15 of a servomotor and provides "feel" and permits automatic centering of the steered wheels. As illustrated, the valve mechanism controls supply to and exhaust from one working chamber 14 and comprises a valve sleeve 24 and a valve spool 48. A predetermined steering torque causes lever 19 to displace the sleeve 24 against the bias of centering spring 36 to place chamber 14 in communication with supply or exhaust via passages 57, 59 or 57, 58 respectively. The fluid pressure in chamber 14 also prevails in chamber 51, and the fluid pressure forces acting in chambers 64, 52, 51 and 63 provide "feel" via lever 19. Should the pressure in chamber 51 rise above an upper limit during supply of pressure fluid to chamber 14 when the vehicle is being steered in one direction, an annular member 47 will be displaced downwardly, relative to spool 48 when the latter engages stop 93 (Fig. 4), until member 47 engages stop 91. Similarly, when the vehicle is being steered in the opposite direction, drop of the pressure in chamber 51 below a lower limit will result in fluid pressure in chamber 63 displacing the member 47 upwardly relative to the valve spool to engage stop 90 when the spool has engaged stop 40. Engagement of the member 47 with stop 91 and stop 90 limits the "feel". Movement of servo piston 4 to the left (in Fig. 1) due to automatic centering of the steered wheels results in the pressure in chambers 14, 51 being raised, thus moving the valve spool 48 and annular member 47 downwardly to open communication between chamber 14 and exhaust 28. When the servo piston moves to the right due to automatic centering, the valve spool and annular member will move upwardly relative to the valve sleeve to open communication between the pressure source and chamber 14 due to pressure drop in chamber 14 and 51. The annular member 47 and spool 48 may be secured together, and the chambers 63, 64 may not receive pressure fluid. In an alternative embodiment (Fig. 3, not shown) chamber 52 is dispensed with.
Patent GB-1367289-A (GB)
Title: Magnetic device
IPC: G11C19/08
Filed: 1971-12-07
Abstract: 1367289 Magnetic storage apparatus INTERNATIONAL BUSINESS MACHINES CORP 7 Dec 1971 [31 Dec 1970] 56720/71 Heading H3B A plurality of magnetic chips A, B, C formed, e.g. of thin film or bulk crystal garnet or orthoferrite, are placed side-by-side to provide a relatively large area for the movement of cylindrical domains 20A, 20B, 20C, a domain being transferred across a boundary 13 between a pair of adjacent chips, such as A, B, by moving a domain 20B in one chip B into a domain interaction zone 22 close to the boundary, this domain then following one of two possible paths depending on whether or not a repulsing domain in chip A is positioned adjacent the boundary and in the interaction zone. In each chip, moving domains 20A, 20B, 20C are produced as a regular series by a respective bubble domain generator 14A, 14B, 14C, the domains being normally propelled towards bubble collapsers 16A, 16B-1, 16-C along respective paths 18A, 18B-1, 18C-1 passing close to a chip boundary 13. The regular series of moving domains in the first chip A is broken up into an information-representing series by selectively pulsing an inhibit coil 21. If a domain 20A moves into the interaction zone 22 in chip A, it repulses an adjacent domain 20B in chip B into a path 18B-2 from where it is stepped into an interaction zone 22 between chips B and C. Domain 20B then repulses domain 20C in chip C and causes it to move along path 18C-2. Absence of a domain 20A, denoting a binary zero, at the interaction zone between chips A and B allows a domain 20B to move along path 18B-1 to the bubble collapser 16B-1. The same conditions apply to chips B and C. The domains may be propagated by the combination of a rotating magnetic field in the plane of the chips and a system of T and I-shaped permalloy bar overlays, Fig. 2 (not shown), with an L-shaped bar extending over the boundary between an adjacent pair of chips. Alternatively the domains may be propagated by energized conductor loops, Fig. 3 (not shown). The apparatus is biased by a magnetic field Hz normal to the chip surface and produced by an energized coil or permanent magnet, while the individual chips may have dissimilar magnetic properties.
Patent GB-1170589-A (GB)
Title: Process for the Stereospecific Polymerisation and Copolymerisation of Conjugated Di-Olefins
Inventor: DEWANS FANCOIS
IPC: C08F2/00
Filed: 1966-12-20
Abstract: 1,170,589. Stereospecific polymerization catalysts for dienes. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 20 Dec., 1966 [22 Dec., 1965], No. 56988/66. Heading C3P. A catalyst for the stereospecific polymerization of conjugated dienes contains an organomagnesium compound, cobalt difluoride, and an orthophosphortriamide or a pyrophosphortetramide in which all the hydrogen atoms attached to all the nitrogen atoms are substituted. Specified phosphoramides are hexamethyl-, hexaethyl-, hexaoctyl-, diphenyltetramethyl-, and cyclohexylpentamethyl-phosphortriamide, pyrrolidinotetramethylphosphordiamide, dipiperidinodiethylphosphoramide, and octamethylpyrophosphoramide. The organomagnesium compound of which a list is given correspond to the general formula R 2 M g , or RMgX where R is a monovalent hydrocarbon radical, and X is a halogen. When the catalysts are used for polymerizing one or more dienes, or one or more dienes with other ethylenically unsaturated compounds, the phosphoramide if liquid, may be employed as the solvent, or a hydrocarbon solvent may be used. Specified dienes are butadiene, isoprene and piperylene. The polymers are recovered by conventional techniques. The monomeric units in the polymer have mainly a 1,2-structure. The polymers prior to recovery may be stabilized with betaphenylnaphthylamine or p-tert-butylcresol. The polymerization is preferably carried out between - 20‹ and 40‹ C. All the examples used temperatures of - 20‹ C.
Patent GB-1287788-A (GB)
Title: Automatic control of the path of the end of the boom of a luffing crane
IPC: B66C13/18
Filed: 1969-11-21
Abstract: 1287788 Hydraulic circuits HOPPER Inc 21 Nov 1969 [27 Nov 1968] 57177/69 Heading F1P [Also in Division B8] - Fig. 1 -shows a crane with an inner boom 13 pivotally mounted at 14 on a base 10 on a horizontal bearing 12. An outer boom 15 is pivoted at 16 to the inner boom 13. The inner boom 13 is pivoted with respect to the base by an hydraulic cylinder 17 and the outer boom is pivoted with respect to the inner boom 13 by an hydraulic cylinder 22. As shown in the hydraulic circuit in Fig. 6 the cylinders 17, 22 are respectively independently operable by manually operated valves 44, 45. Operation of manually operable level buffing valve 42, e. g. to the right as shown, connects pressurized line 77 from pump 37 to lines 78, 55 and thus to port 56. Back pressure in the line 77 acts through lines 62, 61, 78 to cause pilot valve 79 to connect line 63 to line 74. The back pressure in line 55 acts through line 60 to open check valve 59. Accordingly, hydraulic fluid passes from cylinder 17 to cylinder 22 through port 57, line 63, valve 79, line 74 and port 71. The cylinder 17, 22 are so proportioned that they require the same volume of fluid during their respective strokes. The outer end of the outer boom 15 moves in an approximation to a horizontal straight line, load supporting hook 31 following path 81. A more exact horizontal line may be achieved by using a cam 84 fixed to the boom 13 and a follower roller 85 mounted on a rod 86 of an hydraulic cylinder 87 connected by a line 87 to the line 74. The varying volume of fluid in the cylinder 87 causes variations in the relative movement of piston rods 17r, 22r minimizing deviation of the path of the hook 31 from a true horizontal line. Inclined buffing can be achieved by tilting the bore 10. In a modification, Fig. 3 (not shown) an outer boom 15α is provided with a teles copic extension member (100). In the embodiment shown in Fig. 4 an inner boom 13b is buffed by a cylinder 17b and an outer, telescopic boom 15b is extended and retracted by a cylinder 22b. In this case approximate level-buffing of the load is shown by line "C".
Patent GB-1419525-A (GB)
Title: Method and apparatus for monitoring the relative concentration  of mixed materials having divergent reflectance characteristics
IPC: G03G15/08
Filed: 1972-12-13
Abstract: 1419525 Monitoring concentration photoelectrically EASTMAN KODAK CO 13 Dec 1972 [13 Dec 1971] 57516/72 Heading G1A [Also in Divisions G2 and G3] To monitor the relative proportion of mixed materials having different reflectance characteristics the mixture 51 is illuminated by a light-emitting diode 60 and light reflected therefrom is incident on a photo-cell 61. As shown the apparatus monitors a development mix of toner and carrier being applied by rollers 52, 53 to a photo-conductive belt (2) in an electrographic copying machine, Fig. 1 (not shown). The photo-cell output actuates a toner replenisher 64 when toner concentration falls below a pre-set level. To maintain a constant light output from the diode 60 a second photo-cell 68 views the diode directly and its output is fed back to control the amplitude of the pulsed input to the diode. Alternatively the outputs of the two photo-cells 61, 68 may be combined in a ratio circuit whose output controls the toner replenisher, Fig. 5. (not shown).
Patent GB-1236130-A (GB)
Title: Improvements in or relating to rotary hoes
IPC: A01B21/04
Filed: 1969-11-26
Abstract: 1,236,130. Rotary hoes. DEERE & CO. 26 Nov., 1969 [26 Nov., 1968], No. 57882/69. Heading A1B. A rotary hoe 14 comprises a transversely extending tool bar 15 on which a plurality of front and rear gangs (44), (45), Fig. 2 (not shown), of hoe wheels 46 are mounted by means of resilient leaf springs 47 and universal bearings 58. In use, the hoe 14 is lowered by the tractor 16 until the wheels 46 reach the desired depth. As the hoe 14 is drawn forward the resistance of the wheels 46 to movement through the soil is absorbed by the tool bar 15 through draft links 55 while the gangs (44), (45), owing to spring 47 and the bearings 58, can conform to the soil contour through the entire width of the rotary hoe 14. In a modification, rigid links (65), Fig. 7 (not shown), are mounted between gangs mounted on both ends of the leaf spring (47a), said links maintaining the front and rear gangs (44a), (45a) spaced a fixed distance apart.
Patent GB-1177099-A (GB)
Title: Process for the production of omega-Acyl Amino Caproic Acid
Inventor: LAUERMANN GERHARD
IPC: C07C233/45
Filed: 1967-12-20
Abstract: 1,177,099. #-Acylamino caproic acids. DEUTSCHES HYDRIERWERK RODLEBEN VEB. 20 Dec., 1967, No. 57945/67. Heading C2C. #-Acylamino caproic acids of general formula R-O-NH-(CH 2 ) 5 -COOH in which R is an aromatic group are prepared from caprolactam, #-aminocaproic acid and oligomeric and/or polymeric by-products and waste products, from the manufacture of polyamides with a caprolactam base, by decomposition of the starting materials in an aqueous alkali medium at a temperature between 100‹ and 350‹ C. for a time less than 500 minutes, the reaction product being acylated in a weakly alkaline medium. Preferably R is phenyl or p-nitrophenyl.
Patent GB-1209445-A (GB)
Title: Improvements in or relating to strain-relieving cable clamps
Inventor: HEWITSON FREDERICK JOHN
IPC: H01R13/595
Filed: 1966-12-28
Abstract: 1,209,445. Cable clamps. PLESSEY CO. Ltd. 11 Dec., 1967 [28 Dec., 1966], No. 58015/66. Heading H2E. When a cable 2 is clamped between jaws 13 of a strain-relieving cable clamp, movement of the cable 2 relative to the jaws 13 and movement of the jaws 13 relative to a support 10, fixed to an electrical connector 1 is prevented. As shown, this is achieved by clamping screws 17 which pass through clearance bores in lugs 18 of the support 10 and threaded bores 16 in the flanges 15 of jaws 13. Movement of the jaws 13 relative to the support 10 is also prevented by four integral guide rods 10a of the hollow cylindrical support 10, which engage fins 12 of the jaws 13 and by the lugs 18 which bear upon surfaces 19 of the jaws 13. In another embodiment (Fig. 3, not shown), the cylindrical support 10 is replaced by two parallel support lugs which engage forked portions on the outside of two clamping jaws, screws passing through threaded bores in the support lugs to bear against the jaws and clamp a cable therein. In yet another embodiment (Fig. 4, not shown) a cable is clamped between two parallel support lugs by two jaws, above and below the lugs, screwed individually on to the lugs.
Patent GB-1167759-A (GB)
Title: Organosilicon Compounds containing Ester Functions
IPC: C07F7/18
Filed: 1967-12-22
Abstract: 1,167,759. U/V absorbing preparations. RHONE-POULENC S.A. 22 Dec.. 1967 [23 Dec., 19661, No. 58503/67. Heading A5B. [Also in Division C3] Organosilicon compounds, which absorb ultra-violet light and may be used in pharmaceutical or cosmetic compositions, have the general formula: where R<SP>1</SP> and R<SP>2</SP> are C 1-5  alkyl groups, Y is a divalent hydrocarbon group of up to 6 carbon atoms, R is a C 1-5  alkyl, cycloalkyl, aryl or alkaryl group, and a, b and c are such that the compounds are silanes having alkoxy groups attached to silicon or are polysiloxanes. In Example 4, a polysiloxane oil containing dimethylaminobenzoyloxy groups attached to silicon is tested for anti-solar activity on a guinea pig.
Patent GB-1448496-A (GB)
Title: Variable time ratio control
IPC: H02M3/145
Filed: 1973-12-19
Abstract: 1448496 Transistor switching circuits; protecting transistors from overload ALLISCHALMERS CORP 19 Dec 1973 [22 Dec 1972] 58768/73 Heading H3T [Also in Divisions G3 and H2] A control for a D.C. motor M comprises a plurality of power transistors Q1-Q15 each having a current transfer ratio characteristic with a portion decreasing abruptly with increase in collector current, a base drive source DCR for the transistors providing a constant current to cause each transistors to operate on the above mentioned portion, and means for varying the duty cycle of pulses provided by the circuit to the motor. Speed control of the motor is effected by a potentiometer SP which provides a controlling input to a variable delay circuit VDS. This circuit is activated at each output pulse from an oscillator OSC which also sets a bi-stable gating circuit PWM to provide a signal on S1 to cause circuit DCR to activate the switch PS. After the delay interval, a signal from circuit VDS resets the circuit PWM to terminate S1 and thereby the current pulse to the motor. A conduction unit circuit SL in the form of a reciprocally coupled complementary pair (Fig. 8, not shown) senses the voltage across the power transistors and supplies a reset signal over lead CL to circuit PWM if this voltage rises above a certain level indicating that the transistors are pulling out of saturation. Details of circuit DCR are provided, Figs. 2, 3 (not shown), see Division G3. Details of circuits PWM and VDS are given in copending application No. 58769/73. Each power transistor Qi may be replaced by a Darlington pair, and in the event of single transistors being used, they may be of single-diffused silicon type, and the Darington pairs may be of unitary construction of triple diffused silicon type.