baber/WOPTO huggingface dataset:
Patent GB-951230-A (GB)
Title: Improvements in and relating to frequency control systems
Inventor: CORNEY JOHN VICTOR
IPC: H03L7/091
Filed: 1961-10-04
Abstract: 951,230. Automatic frequency control. FERGUSON RADIO CORPORATION Ltd. Oct. 2, 1962 [Oct. 4, 1961], No. 35773/61. Heading H3A. In an automatic frequency control system for synchronizing the frequency of oscillator 15 to that of reference source 11, means are provided for switching out the control circuit including phase comparator 10 when the phase difference between the signals exceeds a set value and reestablishing the control when phase coincidence re-occurs. Wave shaping circuit 12 derives a trapezoidal waveform, Fig. 2a, from the reference signals which are applied as one input to comparator 10 and pulse generator 13 derives control pulse signals, Fig. 2b, having the same frequency and phase as the output of oscillator 15, which are applied via AND circuit 14 to a second input of the comparator. The comparator samples the trapezoidal signal during the occurrence of the control pulses and applies an output via L.P. filter 16 and D.C. amplifier 17 to control the frequency of oscillator 15. The circuit is arranged such that in normal operation the control pulses coincide with the sloping edges 18 of the trapezoidal signal. If the oscillator signals slip relative to the reference signals the control pulses move towards either either point 20 or 22 on the waveform shown in Fig. 2a and further movement into the region 20-22 would produce a reversed output from the comparator which would increase the amount of slip. This is prevented by coincidence in AND gate 25 of the control pulses and a train of switching pulses, Fig. 2D, derived in pulse generator 23 from the trapezoidal signal and occurring during the periods 20-22. The output of AND gate 25 switches bi-stable circuit 27 to its second state in which it prevents, by closing AND gate 14, control pulses being applied to the comparator 10. The long time constant of the filter 16 then holds the frequency of operation of oscillator 15 substantially constant until the coincidence in AND gate 26 of a control pulse with a reset pulse, Fig. 2c, derived from the trapezoidal waveform in generator 24 and occurring during the period 19-21. The AND gate output switches the bi-stable circuit to its first state in which it applies a signal to open gate 14 through which control pulses are again applied to the comparator.
Patent GB-1141395-A (GB)
Title: Synthetic film materials
Inventor: ABBOTT TERENCE ARNOLD
IPC: G03C1/93
Filed: 1966-08-10
Abstract: 1,141,395. Photographic materials. BEXFORD Ltd. Aug. 10, 1967 [Aug. 10, 1966], No. 35786/66. Addition to 1, 088, 906. Heading G2C. [Also in Division B2] A thin base material consists of a film of biaxially orientated and heat-set polyethylene terephthalate having thereon a thin layer (that is of 1-400 micro inches thick) of either a copolymer of vinylidene chloride containing not less than 35 mol per cent of vinylidene chloride or of a homopolymer of vinylidene chloride, this thin layer having been applied to the polyethylene terephthalate before it has been fully bi-axially orientated and heat-set, and having superimposed on the thin layer a layer consisting predominantly of a polyvinyl halogeno ester, or a polyvinyl cyano ester, or a copolymer of a vinyl halogeno ester or a vinyl cyano ester with an alpha-beta unsaturated carboxylic acid or with acrylamide or methacrylamide or their N- methylol derivates or with vinyl acetate and/or vinyl alcohol the second layer having been applied to the film after it has been fully bi-axially orientated and heat-set. Examples of copolymers of vinylidene chloride containing not less than 35 mol per cent of vinylidene chloride are copolymers containing 35-96 per cent vinylidene chloride, 3.5 to 64.5 per cent acrylic ester and 0.5 to 25 per cent itaconic acid. Suitable polyvinyl halogeno esters for use in the second layer are homopolymers of vinyl mono, di- or tri-halogeno acetate especially vinyl mono-, di- or tri-chloro acetate, and polyvinyl monocyano acetate. Preferred are polymers of vinyl halogenoacetates with 1 to 60 mol per cent of an unsaturated carboxylic acid such as crotonic acid or with 1 to 60 mol per cent of vinyl acetate and/or vinyl alcohol. Other suitable copolymers are specified. The solutions or dispersions of the resins may be applied by dip-coating, bead-coating or reverse roller coating. The coated base material may have applied thereto a layer of gelatine applied as an aqueous solution or dispersion in organic solvents. The gelatine solutions or dispersions may contain additions of synthetic polymers or resins and gelatine or silver halide emulsions may be applied. A layer of cellulose acetate or cellulose acetate butyrate may be applied. These layers may be hydrolysed on the latter surface and impregnated with a lightsensitive diazonium salt contained in an attacking solvent medium to produce a diazo type film material. Alternatively, a layer of polyvinyl acetal may be applied to the top layer and this may be directly impregnated by a light-sensitive diazonium salt contained in an attacking solvent medium to produce a diazonium film material. To the top layer may also be applied a layer of partially hydrolysed polyvinyl acetate which includes a light-sensitive diazonium salt or which is subsequently impregnated with such a salt. The top layer may also contain cross-linking agents for the polymers such as tetra-isopropyl titanate and hexamethoxy-methyl melamine.
Patent GB-1236679-A (GB)
Title: Paint saucer
IPC: B44D3/04
Filed: 1969-07-16
Abstract: 1,236,679. Artists paint-pots. GUNTHER WAGNER PELIKAN-WERKE. 16 July, 1969 [5 Aug., 1968], No. 35788/69. Heading B6P. Containers for blocks of paint have upwardly and outwardly extending flanges 2 so that the containers act as saucers. Circular or rectangular blocks of paint are accommodated in appropriately shaped containers.
Patent GB-881632-A (GB)
Title: Improvements in or relating to snap action devices
Inventor: FISHER WILLIAM HAWARDEN
IPC: H01H37/54
Filed: 1958-11-07
Abstract: 881,632. Thermal switches; snap-action switches. GENERAL ELECTRIC CO. Ltd. Nov. 4, 1959 [Nov. 7, 1958], No. 35828/58. Class 38 (5).  A switch has a member 1 deformed across an axis by an annular mounting member 2 and stable also in a position deformed across a second axis at an angle to the first. The member may be bimetallic or act as a slave to a bimetallic element and it carries a contact co-operating with a fixed contact secured on an adjusting screw 4. Additional biasing means may he provided to enable the operating temperature of the device to be altered.
Patent GB-522442-A (GB)
Title: Soil working machine
IPC: A01B77/00
Filed: 1938-12-08
Abstract: 522,442. Soil-cultivating machines. BAUER, W., and SPARROW, A. A. HANBURY-. Dec. 8, 1938, No. 35841. Convention date, Dec. 16, 1937. [Class 6 (i)]. A soil-working machine comprises sets of rotary tools some of which break up the soil, the others feeding the broken soil to elevators which deliver the soil to discharge shoots. The tools are supported on a number of superposed arms pivoted at the opposite ends to the tools so that the depth of working can be varied. Fig. 2 shows a machine comprising endless band tracks 3. and a casing 5 enclosing machinery for driving the tracks and a vertical shaft 9 having separate threaded portions 15, 16, 17 which engage worm gears on horizontal, tubular shafts. 18, 19 20. Tool - carrying arms 21,. 22, 23 are mounted loosely on the shafts 18, 19, 20, each arm being divided into two sections 21a, 21b arranged side by side on the corresponding shaft as shown in Fig. 1. Between the two sections of each arm is a shaft 43 rotated from the shaft 9 and carrying a worm 42 at its forward end which meshes with pinions on shafts 36, 37 carrying soil - working tools 39. Gears 46 on the shafts, 43 rotate helical tools 50 which feed the soil worked by the tools 39 to elevators 35 which pass over sprockets on the shafts . 18, 19, , 20. The soil passes from the elevators to shoots 51, 52, 53 and falls through openings in the base of the machine. The soils from the different elevators may be mixed together by delivery through an alternativeset of shoots 60 which lead to a conveyer 61 on which the soils may be mixed with one another and with lime or manure. The walls of the trench dug by the machine are supported by sectors 90 which are pivoted to the sides of the machine and can"be lowered into the trench. Tree stumps and other obstructions are removed by claws 93 fixed to the rotating shafts 34. The arms 21, 22, 23 are raised and lowered manually by hand-wheels on shafts 67 connected by gearing to threaded spindles 78 on which are nuts in engagement with the arms.
Patent GB-1156861-A (GB)
Title: Rotatable Composite Template and Method of Manufacture Thereof.
Inventor: BULLARD EDWARD PAYSON
IPC: B23Q35/18
Filed: 1966-08-10
Abstract: 1,156,861. Copying. BULLARD CO. 10 Aug., 1966 [18 Aug., 1965], No. 35906/66. Heading B3T. [Also in Division G3] The description is similar to Specification 1,039,149, but the claims relate to the composite template in which a pair of template components are disposed in parallel relationship on a rotating shaft and have stylus engaging surfaces defined by polar co-ordinates proportional to the rectilinear paths along which the controlled members are to be moved.
Patent GB-382126-A (GB)
Title: Improvements in or relating to elastic bolsters, head rests or the like
IPC: A47G9/10
Filed: 1931-12-29
Abstract: 382,126. Pillows. DONATH, H. F., 45, Linzerstrasse, Vienna. Dec. 29, 1931, No. 35916. Convention date, Dec. 29, 1930. [Class 52 (iv).] A resilient pillow structure is formed by connecting spaced flexible end rings 1 by a series of tapes 2 arranged around the circumferences of the rings which latter are supported by a conical arrangement of springs from end caps 5 on a central rod 3 having screwed ends to provide a tensioning adjustment.
Patent GB-1312356-A (GB)
Title: Magnetic recording apparatus
IPC: G11B25/04
Filed: 1970-07-24
Abstract: 1312356 Recording and playback SPERRY RAND CORP 24 July 1970 [24 July 1969] 36003/70 Heading G5R In a system for preventing contamination of the magnetic coating on a drum record 12 inside a housing 14, the pumping action produced as a consequence of the rapid rotation of the drum is used to cause air in the vicinity of the record to be forced around paths such as 54, 56 through a filter 42 which results in the air being kept clean. Air which leaks away is replaced by further air drawn through an inlet filter 30. Refinements, discussed with reference to Figs. 2-5 (not shown), include heat exchange systems designed to prevent a rise in the temperature of the enclosed air.
Patent GB-731049-A (GB)
Title: Improvements in cutlery trays and boxes
IPC: A47G21/14
Filed: 1953-12-31
Abstract: 731,049. Cutlery cases. SHALSON, H. Dec. 31, 1953, No. 36399/53. Class 18. The distance between the locating elements 2, 3 in a cutlery case is adjustable, and the notches in the elements are shaped to take either knives, forks or spoons. The elements may have tenons 5 sliding in grooves 4. One element may be fixed and form an end wall for the case. The case may be sprayed internally with flock and adhesive to form a simulated felt lining and fix the adjustable element or elements in place. The edges of the base may be rebated to facilitate stacking.
Patent GB-764019-A (GB)
Title: Process for the production of alkali and alkaline earth metal chlorites by reductionof aqueous solutions of chlorine dioxide by means of alkali or alkaline earth metal amalgam
IPC: C01B11/10
Filed: 1954-12-16
Abstract: In the production of alkali or alkaline earth metal chlorites by reduction of aqueous solutions of chlorine dioxide by means of alkali or alkaline earth metal amalgam, the potential difference between the amalgam and the chlorine dioxide solution is maintained at one or more points in the reaction vessel at a value equivalent to +0.5 to -2.0 V as measured with a saturated calomel electrode, by mutually adjusting the concentration of the amalgam and the chlorine dioxide concentration in the aqueous solution. As shown in Fig. 2, chlorine dioxide diluted with air is passed through line 6 to an absorber 3 <PICT:0764019/III/1> counter current to water or an aqueous solution of re-cycled chlorite entering at 7, spent air being removed at 8. The soluso formed is passed to a reactor 1 through line 9 and simultaneously amalgam is introduced into the reactor through a line 11.  The reaction products pass to a separating device 2 from the top of which the aqueous liquid is discharged through line 18 for recycling or for product recovery through line 19.  The amalgam leaves the bottom of the separator 2 and is entirely discharged through line 21 for replenishment or is passed through line 22 and 11 back to the reactor together with a fresh supply of concentrated amalgam introduced at line 23.  Potential measuring device 25 at the bottom of the reactor may be arranged to adjust the valve 10 controlling the chlorine dioxide solution feed by means of controller 12 and a potential measuring device 26 may control the supply of concentrated amalgam by valve 24 in line 23, operated by controller 13.  The reactor is preferably provided with packing such as will split the flow of amalgam into thin streams.  The maximum partial pressure of the chlorine dioxide should be below 100 mms. of mercury and a specific example relates to reacting a 20 per cent sodium chloride solution containing 3.5 grammes of chlorine dioxide, obtained by treating the chloride solution with a gas having a chlorine dioxide partial pressure of 35 mms., with an alkali metal amalgam containing 0.01 per cent of sodium at 25 DEG C.  The potential difference between the amalgam and sodium chloride solution is -0.5 V and a yield of over 98 per cent is obtained at room temperature.
Patent GB-1278656-A (GB)
Title: Novel gamma lactones
IPC: C07D315/00
Filed: 1969-03-18
Abstract: 1278656 Gamma-lactones MOBIL OIL CORP 18 March, 1969 [20 March, 1968] 36620/70 Divided out of 1278651 Addition to 1278651 Heading C2C [Also in Division C5] Novel lactones of formula where R and R<SP>1</SP> are hydrogen, halogen or organic, cyano, isocyano, thiol or nitro groups; R<SP>2</SP> is an alkenyl group the olefinic unsaturation of which is non-conjugated with respect to the beta-gamma, carbon-carbon linkage of the gamma-lactone ring; a gamma-lactone-substituted alkyl group the beta-gamma, carboncarbon linkage of which lactone ring is non- conjugated with respect to the beta-gamma, carbon-carbon linkage of any other gammalactone ring, or a gamma-lactone-substituted alkenyl group the beta-gamma, carbon-carbon linkage of which lactone ring is non-conjugated with respect to the beta-gamma, carbon-carbon linkage of any other gamma-lactone ring, R<SP>3</SP> is hydrogen or an R<SP>2</SP> group, and the sum of the number of carbon atoms of R<SP>2</SP> and R<SP>3</SP> is at least 4, are prepared by reacting an aliphatic non- conjugated polyolefin of at least 6 C with a source of RR<SP>1</SP>CCOOH free radicals in the presence of a reducible metal ion of Mn, Ce, Fe, Ni, Co, Hg, Pd, Ag, Cu, Ti, Tl, Th, V or Sn. The free radicals may be produced by the action of a salt of the above metals or a peroxy compound on the acid RR<SP>1</SP>CHCOOH. Reference has been directed by the Comptroller to Specification 1,219,331.
Patent GB-1260710-A (GB)
Title: Developing photographic silver halide light-sensitive elements
IPC: G03C5/26
Filed: 1969-07-21
Abstract: 1,260,710. Developing photographic silver halide light-sensitive elements. FUJI PHOTO FILM CO. Ltd. July 21, 1969 [July 23, 1968], No.36621/69. Heading G2C. A method of developing exposed photographic silver halide light-sensitive elements comprises developing the said element in the presence of a compound of the formula:- wherein Z represents an atom or a group of atoms necessary to complete a heterocyclic ring; R is alkyl having 1-4 carbons or a substituted alkyl group; Ar is phenyl or substituted phenyl; X is an acid radical; and n is 0 or 1, n being 0 when the compound forms an internal salt, the element being treated before or during the development with at least one aldehyde-type hardening agent. Preferably 20-400 mg of said compound is present per litre of developer. The aldehyde-type hardening agent may be present in a pre-hardening solution or in the developer. The aldehyde hardening agent may be formaldehyde, glyoxal, glutaraldehyde or dimethylol urea (forms aldehyde groups in solution). Many examples of the compounds of the above formula are given. These compounds reduce fog caused by processing the said elements in solutions containing an aldehyde hardening agent without appreciably reducing the developing speed and the sensitivity of the emulsion.
Patent GB-1019909-A (GB)
Title: Improved drive knock-off motion for carding machines
Inventor: VARGA JOHN MAXIMILIAN JULES
IPC: D01G31/00
Filed: 1963-09-18
Abstract: 1,019,909. Stop motion. CARDING SPECIALISTS (Canada) Ltd. Sept. 17,1964 [Sept. 18,1963], No. 36729/63. Heading D1D. A stop motion for a carding machine comprises a guide 5 for the sliver emerging from the calender rolls 2, the guide being carried by a rod 10 on a balance weight 11 which is mounted on a shaft 4 pivotable in a plate 3. On breakage or slackening of the sliver the guide 5 falls to rotate the shaft 4 and move an arm 13 (see Fig. 4 not shown) mounted on an arm 12 on shaft 4 between a constantly oscillating lever 30 (see Fig. 5 not shown) and a block 21 to transmit motion from lever 30 to the block 21 movement of which stops the machine. The block 21 is mounted at the upper end of a shaft 19, at the lower end of which is an arm 18 which when moved shifts, via a cable, a portion 25 of the "gate" of the machine control lever 27 to move the lever into the stop position. The arm 13 is pivotally mounted on the end of arm 12 so as to be moveable into engagement with block 21 by the lever 30. Lever 30 is oscillated (see Fig. 3 not shown) by a cam on the calender roll driving shaft 29. A lever 16 is provided on shaft 4 to engage a stop pin and limit the rotation of the shaft. A detent 31 is provided to hold guide 5 in a raised position while it is threaded; the detent falls away when the guide is further raised by the tension in the sliver.
Patent GB-1150527-A (GB)
Title: Fluid Film Thickness Detector and Tack Meter
Inventor: ADAMS JOHN MICHAEL
IPC: G01N19/04
Filed: 1967-08-10
Abstract: 1,150,527. Inking apparatus. RESEARCH ASSOCIATION FOR THE PAPER & BOARD, PRINTING & PACKAGING INDUSTRIES. 30 April, 1968 [10 Aug., 1967], No. 36865/67. Heading B6C. [Also in Division G1] Apparatus for measuring the tack of a film of printing ink on a roller 1 in a printing machine, comprises a pivotally mounted member, movement of which is restrained by a resilient ring 19, and a roller 2 mounted at one end of the pivotally mounted member and in contact with the roller 1 so that the deflection of the roller 2, and hence the deflection of the pivotally mounted member, is proportional to the tack of the ink. The deflection may be measured by a transducer 15 or by strain gauge elements mounted on the resilient ring 19. Two strain gauge elements (30), (31) may be mounted on the inner surface of the ring 19 at opposite ends of the horizontal diameter and two more elements (32), (33) may be mounted either at the top and bottom of the ring or on the supporting frame, the four elements being connected in a Wheatstone bridge circuit, Fig. 4 (not shown). A thermistor (34) may be embedded in roller 2 and connected in series with a voltmeter across the output diagonal of the bridge circuit so that the voltmeter responds only to changes in tack due to changes in film thickness and moisture content, changes due to changes in temperature being unimportant because they do not adversely affect the printing process. The roller 2 also forms part of an apparatus for measuring the thickness of the ink film, the amount of light received from source 9 by a detector 4 being related to the film thickness, as described in Specification 1,140,107.
Patent GB-1395157-A (GB)
Title: Integral shaft bearing and seal assembly
IPC: F04D29/12
Filed: 1971-08-05
Abstract: 1395157 Rotary shaft seals RANSOME HOFFMANN POLLARD Ltd and G A TUNE 31 July 1972 [5 Aug 1971] 36866/71 Heading F2B A shaft bearing and seal assembly, particularly for a vehicle water pump, comprises a seal member 14 which is rotatably driven by the shaft 4 and urged axially by a spring 15 into facial sealing contact with a counterface member 13 secured to the outer race 13 of the bearing 1, the spring bearing against a stop member 16 secured to the shaft. The member 14 is sealed to the shaft by an 0-ring 18 and the spring 15 comprises an annular portion 26 and three curved arms 27. The stop member is a circlip 16 engaged in a groove 17 in the shaft and having end portions 29. A retainer 23 having recesses engaged by projections 25 on the member 14 encloses the 0-ring 18. A lug 28 on the spring is engaged by an end portion 29 of the circlip to thereby rotate the spring with the shaft and the seal member 14 is driven from the spring by the ends of the curved arms 27 engaging the projections 25. In a modification, Figs. 7 and 8 (not shown), the retainer (123) has tabs (124) which engage in grooves (125) in the seal member (114) and projections (126) engaged by the ends of the spring arms. The seal and counterface members may be of resin impregnated carbon graphite, stainless steel, nickel, cast iron or Stellite (Registered Trade Mark).
Patent GB-848473-A (GB)
Title: Improvements in and relating to actuating or interconnecting mechanism for doors
Inventor: LORD WILFRED
IPC: F16L13/02
Filed: 1957-11-27
Abstract: 848,473. Driving chains; door-operating appliances. PETERS & CO. Ltd., G. D. Nov. 27, 1957, No. 36958/57. Addition to 836,429. Classes 24 and 65(1). In actuating or interconnecting mechanism for doors as claimed in the parent Specification the drive connection between each chain and its respective member 1, constituted by a chain link 6 or pair of links each such link having a lateral extension to one side of the chain engaged with the member, includes a recess 4 adjacent the smooth curved surface portion of the member which receives a chain roller 2 associated with the link or pair of links. Preferably two recesses are provided, as shown, to receive adjacent chain rollers, and a pin 7 secured to the pair of links 6 passes through a hole 5 in the member.
Patent GB-1440187-A (GB)
Title: Storage tank means
IPC: B65D90/24
Filed: 1972-08-09
Abstract: 1440187 Bulk storage tanks MOTHERWELL BRIDGE ENG Ltd 8 Aug 1973 [9 Aug 1972] 37189/72 Heading E1T A bulk storage tank 2 for petroleum products is disposed within a containment tank 3 provided with a roof 4; the storage tank and the containment tank being formed with vents Which ensure that the air pressures within the said tanks are maintained at substantially ambient pressure. The tank 2 may have a floating roof or blanket cover 18 and be provided with a flout alarm 10 and an overflow 11. The tank 3 may have cooling water distributors 8, foam distributors 9, a vent 17, manhole 16 and deflector plates 8A. The tanks 2, 3 are mounted on a common ring wall 7 enclosing a pad 1 having drain lines leading to monitoring sumps for details of which Fig. 2, (not shown), should be referred to. For numerous minor details concerning valves, monitoring, drainings, pad, alarms, access means &c the Specification and Fig. 1, (not shown) accompanying the Provisional Specification should be referred to.
Patent GB-1200802-A (GB)
Title: Variable displacement pump
Inventor: AMATO MICHAEL ANGELO D
IPC: F04B1/20
Filed: 1967-08-14
Abstract: 1,200,802. Reciprocating pumps. M.A. D'AMATO. Aug.14, 1967 [March 29, 1967], No.37314/67. Addition to 992, 095. Heading F1A. In the pump of the parent Specification, torque transmission between the cylinder block 38 and the wear plate 108 is effected by dowels 200, the counter bores in the wear plate passages being omitted and the wear plate ends of the cylindrical sleeves 128a being flush with the surface of the wear plate.