baber/WOPTO huggingface dataset:
Patent GB-647196-A (GB)
Title: Improvements in or relating to electrical amplifiers
IPC: H01G4/12
Filed: 1947-03-27
Abstract: 647,196. Non - contact - making relays. PHILIPS LAMPS, Ltd. March 27, 1947, No. 8341. Convention date, March 30, 1946. [Class 40 (iv)] [Also in Group XL (c)] An amplifier using a condenser with a crystal dielectric of the type described in Specifications 645,835, 647,055 and 647,195, comprises an oscillatory circuit having a natural frequency near to that of an auxiliary signal applied to the circuit. A direct current or low-frequency signal with a direct current bias is applied at 1 to the oscillatory circuit, Fig. 1, comprising a condenser 2 with a crystal dielectric, the properties of which vary according to the voltage and/or current applied, the secondary 5 of a transformer to which the auxiliary signal is applied, and the primary of a transformer 15. Preferably, the frequency of the auxiliary signal is slightly less than the natural frequency of the circuit, and the capacity of the condenser decreases with increased frequency. The amplified output is rectified by a diode 12. In Fig. 2, a push-pull arrangement eliminates current of the auxiliary frequency and produces an amplified signal in resistance 8, the diode circuit providing positive or negative feed-back, depending on how it is connected. The condensers 9, 10 and resistance 11 may be replaced by a crystal condenser of the same type as 2, both condensers 2 having a direct current bias. Such an arrangement compensates for temperature changes.
Patent GB-1438250-A (GB)
Title: Preparation of poly 1,4-butylene terephthalate
IPC: C08G63/78
Filed: 1974-02-25
Abstract: 1438250 Preparation of poly-(1,4-butylene terephthalate) GENERAL ELECTRIC CO 25 Feb 1974 [26 Feb 1973] 8356/74 Heading C3R Poly-(1,4-butylene terephthalate) is prepared from terephthalic acid by one of the following processes: (a) heating 1,4-butanediol to 175-275‹ C., gradually adding terephthalic acid to the hot 1,4-butanediol and removing the by-product water from the reaction mixture as the water is formed, or (b) heating a mixture of terephthalic acid and at least 1À25 moles of 1,4-butanediol per mole of acid at 175-275‹ C. at atmospheric or subatmospheric pressure, distilling the excess 1,4-butanediol from the reaction mixture and removing the by-product water by entrainment in the excess 1,4-butanediol distilled from the mixture. The examples describe the preparation of 1,4-butylene terephthalate homopolymer and copolymers thereof with isophthalic acid, adipic acid or glycerol.
Patent GB-417764-A (GB)
Title: Improvements in cemented shoe and method of making the same
IPC: A43B13/00
Filed: 1934-03-16
Abstract: 417,764. Boots &c. SBICCAMETHOD SHOES, Inc., Laird Schober Building, 22nd Street, Philadelphia, U.S.A. March 16, 1934, Nos. 8371 and 8372. Convention dates, March 23, 1933 and Dec. 23, 1933. [Class 17 (ii).] A sole blank is cut and slit to form an insole part 14, Fig. 2, comprising a rand 19 surrounding an aperture 16 at the ball portion and an integral shank and heel, and an outsole part 13 comprising a projecting portion 15 complementary to the aperture 16 and integral heel and shank portions. The heel portion of the part 13 may be slit, as at 27, to form a heel breast covering flap. A marginal portion is removed from the periphery of the insole part 14, extra material being removed at the parts of sharpest curvature to accommodate the increased thickness of upper materials which gathers there when lasting the upper. The sole part 13 is chamfered at the shank and the sole is roughened and adhesive applied. A sheet of paper 28<c>, Fig. 9, is applied to the last or attached to the ball portion of the insole 14 to cover the aperture 16 and removed after completion of the shoe, to prevent adhesive sticking to the last. Chalk or other adhesiveproof substance may be applied to the surface of the projection 15 to prevent adhesion of the paper thereto. The sole is applied to the lasted upper with the projection 15 seating in the aperture 16 of the insole, as shown in Fig. 9. U.S.A. Specification 1,838,708 is referred to.
Patent GB-664070-A (GB)
Title: Improvements in or relating to arrangements for resiliently mounting apparatus in a container
IPC: H05K7/00
Filed: 1949-03-29
Abstract: 664,070. Bolting; bolts; nuts. GENERAL ELECTRIC CO., Ltd.; and HEWITT, W. H. L. March 29, 1950 [March 29, 1949], No. 8511/49. Class 18. [Also in Group XXV] Articles such as radio sets are resiliently supported in containers particularly those to be hermetically sealed for use in the tropics. A number of locating members 6 are secured in the container and have recesses 7 shaped to fit nuts 4 of the shape shown; a flared mouth conducting the nuts into the recesses. The nuts screw on to bolts 3 bonded to rubber &c. cyinders 1 and are recessed at 5 to receive the bolt heads. Screws 2 bonded to the other ends of the cylinders are attached to the set. Similar resilient bolts attached to the opposite side of the set secure it to the lid of the container. The members 6 may be resiliently mounted in the container.
Patent GB-330904-A (GB)
Title: Process for the manufacture of sulphonation products of unsaturated hydroxy fatty acids
IPC: C11C3/00
Filed: 1929-03-18
Abstract: 330,904. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). March 18, 1929. Sulphonic acids; ethereal sulphates. - Sulphonated products are obtained by treating higher unsaturated hydroxy fatty acids such as ricinoleic acid, or their esters such as castor oil, with gaseous sulphur trioxide while stirring and cooling. The reaction is preferably carried out in the presence of an organic diluent or solvent such as carbon tetrachloride, perchlorethane, hexachlorethane, or trichlorethylene, and the sulphur trioxide may be introduced by passing it over the solution in a current of a dry inert gas, for example, air or nitrogen. The acids or esters may if desired be first reacted upon with sufficient sulphuric acid monohydrate or chlorsulphonic acid to esterify the hydroxyl groups, and the products then further treated with gaseous sulphur trioxide as described above. Examples are given of the sulphonation of ricinoleic acid and castor oil. The Provisional Specification refers to the use of unsaturated hydroxy fatty acids and their derivatives in general as starting materials, and mentions benzene as a suitable organic diluent. Specification 296,999 is referred to.
Patent GB-699198-A (GB)
Title: Improvements in or relating to arrangements for the automatic feed of rod-like or tubular workpieces in machine tools, more especially centreless grinders
IPC: B24B5/38
Filed: 1951-04-16
Abstract: 699,198. Feeding rods to centreless grinder. AKTIEBOLAGET MALCUS HOLMQUIST. April 16, 1951 [July 11, 1950], No. 8833/51. Class 60. [Also in Group XXX] Rods from a magazine 7, 8, 10 (Fig. 2) are aligned by adjustable guides 7a, 8a, and are discharged from the magazine by and between rotating propelling rollers 17, 18, having flats on them, thence passing beneath bar 24 and along channel 51 into guide 47 till gripped by a centreless grinder. As shown, the rods roll down inclined plates 10 the inclination of which is adjustable by screw 12, and fall between supports 7 and 8 (Figs. 3 and 4) each pair of supports 7, 8, being mounted on a rotatable disc 6, all said discs being manually rotatable together by movement of rod 15 connecting said discs so as to adjust for rods of differing diameter. The propelling rollers 17, 18 (Fig. 8b) are each formed of two integral discs 20, 21, the former having a flat 22 co-operating with the corresponding flat 22 of the other roller so that the rod 23 falls from the said magazine in between the flats 22 and upon the continued rotation of the rollers is propelled forward, the two rollers separating slightly to permit this. Rollers 17, 18 (Fig. 10) are rotatably mounted on bars 40, 41 which bars are connected by spring 46 and by interengaging gears 42, 43 and are pivoted at 44, 45 so that the said rollers swing apart to equal degrees, the drive to the rollers passing from electric motor 19. The rod 23, as it enters the grinder (Fig. 13) passes through guide 47 having opening 48 and a thin overlying portion 49, and a thin underlying portion 50 (not shown).
Patent GB-554067-A (GB)
Title: Cavity-wall buildings and blocks for same
IPC: E04B1/00
Filed: 1942-06-26
Abstract: 554,067. Walls; floors and ceilings. MOORE, J., and RAM, F. R. June 26, 1942, No. 8836. [Class 20 (iv)] The walls of a cavity-wall buiiding are formed of precast hollow blocks with sides 5 spaced by horizontal webs 6 both at such distances apart that a man can move along the passages 7 formed in the walls when the blocks are placed vertically end to end. Openings covered by doors or covers are provided to give access to the passages. The sides of the blocks are formed at their ends with interengaging tongues 8 and grooves 9. The building may have a steel framing and the hollow floor-ceiling and floor roof blocks may be hung on joists 14 supported across the framing. Electric conduits, water pipes, drain pipes, flues, water cisterns and baths may be arranged in the walls and floors.
Patent GB-1162797-A (GB)
Title: Alternators
Inventor: BAKER ALFRED DICKENS
IPC: H05K7/18
Filed: 1966-03-01
Abstract: 1,162,797. Vehicle alternators. JOSEPH LUCAS (INDUSTRIES) Ltd. 8 Feb., 1967 [1 March, 1966], No. 8843/66. Heading H2A. [Also in Division G3] The end cover 48 of a vehicle alternator carries three contacts as 81a connected via lugs 83 to the stator winding, and arranged to engage connectors as 53a on an insulating body 51 which also carries the rectifiers as 13 and brushes 80 which feed the rotor winding via shaft 44. The body 51 is moved axially into position and then rotated so that connectors 53a pass behind fingers 81a to hold the body on to the end of the machine. There are three connectors as 53a spaced equally round the body and each having three radially directed lugs as 57a. Three mutually insulated plates 61, 63, 65 resting on a shoulder 54 on the body 51, have corresponding lugs 63a, rectifiers as 13 being located between these sets of lugs. The lugs are inclined to the direction of air flow. A printed circuit board 71, secured to the body, carries the circuit and components of a voltage regulator (see Division G3) contact being made between plates 63 and 65 to the board. The power transistor 29 is mounted on a separate heat sink 79 on the board.
Patent GB-712146-A (GB)
Title: Mechanical horse
Inventor: SMALL CHESLEY TWITCHEL
IPC: A63G19/20
Filed: 1952-04-07
Abstract: 712,146. Exercising apparatus. MEMPHIS METAL MANUFACTURING CO., Inc. April 7, 1952, No. 8851/52. Class 132(1) A mechanical horse comprises a pair of parallel members 8, 9 having one set of ends pivotally secured to an upright stationary support 3 and the opposite ends pivotally connected to a rider carrying body 4, the distance between the pivots being greater on one member than the other, and a mechanism comprising a motor driven shaft 17 carrying an eccentric collar 18 having a crank pin .18a connected by a pitman 14 to one of the members 8, 9 to oscillate the body 4, the collar 18 having a counter balance weight 19 on the side opposite the crank pin.. Pivots 10 and 11 connecting members 8, 9 to support 3 are disaligned vertically so that pitman 14 can raise and tilt the body. Support 3 is mounted on a platform 1 and base 2 which also carry a variable speed motor 15 coupled at 21 to reduction gearing 16 which drives shaft 17. Counter balance 19 offsets the weight of the person seated on the carrying body 4 and reduces the variation in load on the motor. The motor 15 is mounted within an apertured housing through which an air stream is drawn by a fan 20 mounted on coupling 21 between the motor and the reduction gearing. The motor speed is' controlled by radial arm 31 whose upper end slides in a pin 32 journalled on a bracket 33 which has a trunnion 34 journalled on a bracket 35 with its inner end secured to a coupling 36 by a set screw 34a. The other end of the coupling forms a sleeve which receives the lower end of a piece of high pressure hose 37 into which is fitted a filler 37a and through all of which a pin P extends. The piece of hose 37 extends through a grommet 38, Fig. 1, and upwardly through body 4 to a coupling 39, corresponding to coupling 36, having a socketed portion which receives a rod 40. The upper end of rod 40 carries a shank 41 having a knob 42 accessible to the rider and is journalled in a collar 43 to rotate through approximately 90 degrees between stops. Thus the rider may control the motor speed. A snap switch having a spring arm carrying a roller 47 is mounted so that at one extreme position of arm 31 pin 32 engages roller 47 to open the motor circuit. A saddle S is provided which is preferably removable.
Patent GB-193725-A (GB)
Title: Detachable nozzle for condensed milk tins & the like
IPC: B67B7/48
Filed: 1922-03-28
Abstract: 193,725. Corr, E. N. March 28, 1922. Sports; opening by cutting or tearing.-A fitting to facilitate pouring out the contents of milk tins &c. comprises a nozzle 3 provided with a cap 1 and mounted on a band 5 adapted to be fitted adjustably, for instance by means of wires and screw clamping means as shown, to the tin. The pouring incision is made after application of the fitting by passing through the nozzle a piercer 9 which may be fitted with a joint ring 10 and serve also to close the vent opening 4.
Patent GB-672413-A (GB)
Title: Work holding device
IPC: B21D43/00
Filed: 1950-04-11
Abstract: 672,413. Work holders. WALES-STRIPPIT CORPORATION. April 11, 1950 [Aug. 24, 1949], No. 8909/50. Class 60. [Also in Group XXII] A pneumatic device for rotatably holding workpieces in nibbling, punching &c. machines comprises a head adapted to engage a workpiece to seal off a predetermined area which communicates with a cylinder and plunger by which the sealed-off chamber is exhausted, the chamber having a volume small with relation to the cylinder and an area large with relation to the plunger. The head 16 is rotatably mounted in a bracket 31 adjustable on an arm 10 clamped by a screw 19 to a post 18 adjustable in a slot 13a in the die holder 13: A punch or rubber 15 co-operates with a die in the holder. The head comprises a disk 37, with insert sealing ring 38, secured to a cylinder 35 by plug 41 with air hole 43 and screwed centre 53. The plunger 44 carries a rubber ring 50 in a recess 49 with air passage 51. On the downstroke of the plunger the ring 50 rises in the recess 49 and allows air to be exhausted through the passage 51. When a spring 45 raises the plunger the ring 50 seals the passage 51 and air is exhausted from between the workpiece and the disc 37 through the hole 43, to grip the workpiece, the necessary pressure being obtained by making the volume of the space over the workpiece small with relation to the cylinder and the area large with relation to the plunger. The cylinder is held to the bracket by a screwed bush to allow the workpiece to be rotated for nibbling about a fixed centre. The holder may be adjusted in height by the screw connection between the bush and the bracket. U.S,A. Specification 2,364,011 is referred to.
Patent GB-141039-A (GB)
Title: Improvements in and connected with milk cans or churns and like vessels
IPC: B65D45/02
Filed: 1920-03-27
Abstract: 141,039. Nielsen, N. J. March 31, 1919, [Convention date]. Stoppers and lids, bayonet-joint; stoppers and lids adapted for discharging contents.-A milk churn &c. has a cover 6, which engages in the wide mouth of the vessel and has a narrow tubular neck 5 adapted to be closed by a cork &c. 14, the cover 6 being tightened upon its seating by a nut 9 engaging a part 10 arranged to be secured to the mouth of the churn by a bayonet-joint. Packing-material 8 is arranged beneath the flange 7 of the cover 6, and the mouth of the neck 5 mav be covered by a cap 15 of aluminium &c. Instead of arranging the nut 9 on the neck 5, the cover 6 may be provided with two or more eccentricallydisposed screwed studs engaged by tightening- nuts; also, the cover 6 may have two or more eccentrically-disposed necks, the nut 9 being screwed on a central solid pin.
Patent GB-800723-A (GB)
Title: A machine for producing cleansing pads
IPC: A47L17/08
Filed: 1956-03-23
Abstract: 800,723. Reciprocating pumps. EISEN-UND HAMMERWERK G. M. B. H. March 23, 1956 [March 25, 1955], No. 9054/56. Class 102(1). [Also in Groups VI and XXII] A piston pump 30 for injecting liquid soap or detergent into steel wool cleaning pads (see Group XXII) is actuated from the vertically reciprocating tool holder 20 of a press through links 39, 40, having a lost-motion connection with the pump piston rod 41. A nut 42 on the rod forms an adjustable abutment by which the pump stroke may be varied. The pump draws liquid through a heated pipe 31 from an electrically heated reservoir 29, Fig. 4, and discharges it through a nozzle 32 and also through a heated pipe 33 having a valve 35 leading to a container 11<SP>1</SP> for the pad.
Patent GB-678821-A (GB)
Title: Improvements in or relating to showcards, window display stands and the like
Inventor: MORRIS REGINALD ARTHUR
IPC: G09F1/00
Filed: 1950-04-13
Abstract: 678,821. Showcards. WEBSTER, Ltd  W. J. April 12, 1951 [April 13, 1950], No 9095/50. Class 3(ii) A showcard, window display stand or the like formed from a single sheet of cardboard or similar material comprises parts connected together by substantially vertical hinges to form a background 1 with a forwardly projecting surround or border 2a, 3a, rearwardly extending parts 2b, 3b being hingedly attached to the surround, the parts 2b, 3b being urged by tensioned resilient means 6, so that the background and surround parts are held in the desired relative positions. The background 1 may bear display matter or articles, pictures or the like may be attached to it, and in addition to the parts 2a, 3a the surrounding frame also has top and bottom members 2, 4a, 5a projecting forward. The resilient means 6 which consists of one or more rubber bands are attached to tabs 7 on flaps 2c, 3c which are hinged by score lines to the panels 2b, 3b. The panels 2b, 3b lie on the back of the members 2a, 3a and project backwardly in the erected position of the device as shown in Fig. 4. The bottom edges of the panels 2b, 3b support the device in a substantially vertical position in conjunction with a flap 5b on the bottom frame member 5a. The flaps 2c, 3c are bent over and lie flat against the top and bottom frame members 4a, 5a. A decorative wing 9, is connected to the top frame member 5a. The device may be packed flat in a wrapper for dispatch and when released from the wrapper will automatically assume its erected position.
Patent GB-710739-A (GB)
Title: Improvements in or relating to refinement of benzene hexachloride
IPC: C07C17/38
Filed: 1952-04-10
Abstract: A process for the recovery of gamma benzene hexachloride by partially dissolving crude benzene hexachloride in an aliphatic alcohol of 1-4 carbon atoms, separating the resultant solution from undissolved solids, and crystallizing gamma benzene hexachloride therefrom is characterized by recycling a portion of the mother liquor from the crystallization step to the partial solution or extraction step. Preferably 15-60 per cent of the recycle stream is discarded and for best results the amount discarded corresponds to y= -0.014 + 0.1546/(1.378-x), where y is the parts of recycle solution discarded in unit time per part of fresh crude hexachloride and x is the specific gravity of the recycle solution.  Extraction is preferably effected at about 10 DEG  to about 35 DEG  C with ratios of methanol or other alcohol to total benzene hexachloride of approximately 1.5/l to 2.5/l or to fresh hexachloride feed of about 2.6/l to 5.0/l. Preferably about 30 to about 80 per cent of methanol is evaporated off prior to crystallization which is effected at about -20 DEG  C. to about 60 DEG  C., preferably about 0 DEG  to 40 DEG  C.  Specified alcohols are methanol (which may contain a small quantity of water), ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, tert.-butanol and iso-butanol.  Examples are provided using methanol as solvent and comparisons made with processes in which no or complete recycling is effected.  Specification 573,693 is referred to.
Patent GB-1059013-A (GB)
Title: Improved device for the determination of the vertical above a given point
IPC: G01C9/00
Filed: 1965-03-04
Abstract: 1,059,013. Determining verticals. M. P. P. DE FONTEGUYON. March 4, 1965 [March 7, 1964], No.9236/65. Heading G1F. A device for determining the vertical above a given point 31 comprises a line 30 attached to said given point, a vessel 20 containing liquid, means for supporting said vessel, a float 24 immersed in the liquid of said vessel, and means 25 for coupling the float to the line. In the device shown in Fig. 1 the vessel 20 is pierced by an orifice 21 to which is sealed a tube 22. A float 24 in the form of a ring is totally immersed in a liquid bath 23. A grapnel 25 is fixed to the top of the float 24 and its central rod 28 passes freely through the central tube 22 to be connected by a hook 29 to the line 30. The vessel may be held by a handle 32 or a supporting member 34 or may be placed on a support 36. The vessel is initially placed in the vicinity of the vertical above a given point and the float moves until its centre of buoyancy is vertically above the given point. The liquid bath may comprise superimposed layers of non-miscible liquids. The dimensions of the device are such as to prevent the float touching the wall of the vessel before the rod 28 touches the tube 22. Various other embodiments are described with reference to Figs. 2-14 (not shown). The float may be of a different shape such as a cylinder, Fig. 2 (not shown), or there may be more than one float. The float may be connected to the line 30 by a member passing round the outside of the vessel rather than through the centre thereof. The vessel and central tube may be shaped and dimensioned so that liquid will not be spilt in transportation of the device. Various devices are disclosed for fixing the line 30 at the given point. The top of the floats and the sides of the vessel may be shaped to prevent surface tension and capillary forces.
Patent GB-436061-A (GB)
Title: Plant for chemical laundrywork, dry-cleaning and the like, and method of operating same
IPC: D06F43/08
Filed: 1935-03-25
Abstract: <PICT:0436061/III/1> In a dry-cleaning plant of the drum type, a conduit for the discharge of solvent and for the passage of circulating air leads to a casing containing a perforated cage constituting a combined needle and fluff trap.  As shown, a conduit 5 leads from the drum 4 to a casing 6 containing a perforated cage 20 below which is an outlet 7 for solvent and an outlet 6<a> for air, leading to a conduit 8 housing a cooling device 10.  The cage 20 is removable through a door 22.  Solvent is withdrawn by a pump located below the level of the liquid in the drum.  Air is drawn through the drum by a fan 9 and may be circulated through a pipe 12 and dome 13 containing a heater 14 or discharged through a pipe 11.  To facilitate access for cleaning, the heating and cooling devices are of the gill type and are secured, as a unit, to a removable cover, the unit being connected to stationary supply and discharge pipes through flexible connections.
Patent GB-1073394-A (GB)
Title: Sensitive speed instrument for aircraft
Inventor: HRADEK RICHARD WILLIAM
IPC: G01P5/175
Filed: 1965-03-04
Abstract: 1,073,394. Air speed alarms. BENDIX CORPORATION. March 4, 1965, No. 9302/65. Heading G1L. [Also in Division H2] An electrical instrument for indicating when an aircraft has reached its maximum safe speed comprises a casing 12 with a capsule 24 responsive to static air pressure and a capsule 18 responsive to the Pitot pressure through inlet 16 and changes in static air pressure, both capsules acting through linkages 30, 28 on a moving contact 32, the contact pin 34 of which moves according to the pressure changes such that at the maximum safe speed of the aircraft it contacts fixed contact 38 which consists of two cams 40, 42 which can be adjusted to give a shape of contact surface corresponding to the maximum safe speed at different altitudes.