baber/WOPTO huggingface dataset:
Patent GB-217852-A (GB)
Title: Improvements in hydraulic power transmission mechanism
IPC: F16D31/02
Filed: 1923-12-27
Abstract: 217,852. Goss, H. W. Dec. 27, 1923. Clutches and speed - varying mechanism. - In hydraulic transmission mechanism of the piston- and-cylinder type controlled by an axially movable sleeve 20, a rotatable outer casing 1 contains the operating liquid, which is caused by centrifugal action to cover ports in the ends or sides of the cylinders.
Patent GB-226370-A (GB)
Title: Improvements relating to tub or truck controlling devices for mining and other purposes
IPC: B61D49/00
Filed: 1923-12-27
Abstract: 226,370. Kershaw, A. G., and Westing- house Brake &. Saxby Signal Co., Ltd. Dec. 27, 1923. Axle stops of the star-wheel type have a pair of symmetrically arranged wheels 4 one of which has a single arm while the other has a number of arms 5 corresponding to the number of axles 6 to be passed. A cam disc 10 is secured to each wheel 4 and has a shoulder or projection 11 engaged by a pawl 12 which is mounted on a shaft 14 and extended to form an arm 13. The arms 13 are connected by a pivot pin 15 coupled to a spring-pressed rod 16, while provision may be made for attaching a rod 19 for operation from the opposite direction. Each arm 13 has a part 22 arranged to engage an abutment 23 on the casing 1. The wheels 4 are mounted on a shaft 3 secured to or integral with a square boss 7 having two faces engaged by fingers 8 resiliently mounted on a bracket 9 which itself engages a third face, as described in Specification 213,778, the bracket 9 being mounted on the shaft 14.
Patent GB-424408-A (GB)
Title: Improvements in and relating to transformer tap changing arrangements
IPC: H01F29/04
Filed: 1934-11-09
Abstract: 424,408. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Nov. 9, 1934, No. 32323. Convention date, Nov. 9, 1933. Addition to 400,962. [Class 38 (ii)] In an arrangement for tap-changing under load in which an intermediate tap is permanently connected to the load circuit through a device offering low impedance only when subjected to the full voltage of the transformer winding as when the tap-changing switch is being actuated as described in the parent Specification, the device comprises a pair of oppositely connected grid-controlled gaseous discharge devices 7, 8 the grid circuits of which are controlled either by the main contacts of the tap-changing switch 3 or auxiliary contacts thereon so that the discharge devices are blocked during normal operation and rendered conductive during actuation of the tap-changing switch. The Figure shows the control circuit of one grid only which circuit includes a change-over switch 13 actuated by a cam 16 on the spindle of the tap-changing gear whereby the required grid control is effected. Heating of the cathodes of the devices 7, 8 may be discontinued during normal operation of the transformer, the heating circuit being completed only at the commencement of the tapchanging operation, starting of the tap-changing motor 5 being delayed to allow the cathodes to reach operating temperature.
Patent GB-1200419-A (GB)
Title: Improvements in and relating to the preparation of edible protein
IPC: A23C11/10
Filed: 1968-07-08
Abstract: 1,200,419. Coffee whitener. CARNATION CO. 8 July, 1968 [2 Oct., 1967], No. 32442/68. Heading A2B. [Also in Division C3] A coffee whitener in which the protein content comprises acylated vegetable protein (e.g. peanut, sesame or soya bean protein treated with acetic anhydride - see Division C3) does not "feather" in tea or coffee.
Patent GB-500451-A (GB)
Title: Improvements in and relating to spring counterbalancing apparatus for shutters, curtains or other rising and falling objects
IPC: E06B9/60
Filed: 1937-11-25
Abstract: 500,451. Balancing-apparatus; roller blinds. GIBSON & CO., Ltd., A. L., and GIBSON, W. P. Nov. 25, 1937, No. 32528. [Class 78 (ii)] [Also in Group X] Counterbalancing apparatus for roller shutters and the like comprises two or more springs sucessively brought into Operation as the shutter descends. One end of one spring (i is secured to a bearing 4 secured to the roller 1 and loose on the shaft 2. One end of the other spring 8 is secured to a freely rotatable disc 10. The other ends of the springs are secured to discs 7, 9 fast on the shaft 2. A disc 11 secured to the roller carries a stud 12 which after one rotation of the roller engages a stud 14 projecting from a disc 13 loose on the shaft 2. The disc 13 is thus rotated and, after one revolution, a stud 15 projecting therefrom engages a stud 16 projecting from the disc 10. The counterbalancing effect of the spring 8 is thus brought into play after two revolutions of the roller, but this number may be modified by modifying the number of intermediate discs 13. Alternatively a screw and nut device may be used for conpling the second spring to the roller.
Patent GB-794532-A (GB)
Title: Piece of furniture for filing metallic matrices for the press
IPC: A47B63/02
Filed: 1955-11-15
Abstract: 794,532. Drawers. ADREMA SOC. ACCOMANDITA ITALIANA. Nov. 15, 1955 [Nov. 18, 1954; March 26, 1955], No. 32596/55. Class 52(1) In a filing cabinet for printer's matrices, the drawers 2 rest on telescopic supporting sheets slidable on L-shaped runners 1, the sheets being each provided with longitudinal ribs 6 to the rear of which is secured a transverse plate 11 which engages under the horizontal flanges of runners 1 to hold the sheet horizontal and which abuts the rear surface of front uprights 12 to limit the forward motion of the sheet. As shown the sheet consists of a rear part 4 to which is secured a channel member 9 holding in place a front part 7 having a longitudinal slot 10 in which the member 9 slides. The rear and front respectively of parts 4, 7 are bent upwards at 5 and 8 to retain the drawer. In a modified form, the part 7 consists of two separate parallel longitudinally extending parts.
Patent GB-773660-A (GB)
Title: Improvements in or relating to process for resolving a racemic modification of a non-basic alpha-amino carboxylic acid
Filed: 1955-11-15
Abstract: A process for resolving a racemic modification of a non-basic alpha-aminocarboxylic acid comprises preparing an aqueous solution containing said racemic modification and an optically active form of another non-basic alpha-aminocarboxylic acid, and separating solids from the solution by crystallization.  Preferred alpha-aminocarboxylic acids are those containing between 4 and 9 carbon atoms and containing less than 3 carboxyl groups.  The aqueous solution is preferably supersaturated with respect to said racemic modification and the pH is preferably maintained at the isoelectric point of the compound to be resolved.  The process is applicable to the resolution of glutamic acid, aspartic acid, leucine, isoleucine, norleucine, tyrosine and valine.  The resolution of DL-glutamic acid with L- and D-aspartic acids and L-leucine and of DL-aspartic acid with L- and D-glutamic acids is described.
Patent GB-1491201-A (GB)
Title: Measurement of impedance ratios
IPC: G01R19/10
Filed: 1974-10-22
Abstract: 1491201 Measuring capacitance P C F  WOLFENDALE 22 Oct 1974 [23 July 1973] 32636/73 Heading G1U In order to measure the ratio of two capacitances a supply voltage is applied across each in turn, and the resulting currents are integrated, the integrator first being driven positively I, Fig. 2e, from zero by the first current for a reference period t 1 , and then negatively II by the second current until the integral returns to zero, this later period t 2 , which is proportional to the required ratio, being measured. In the preferred embodiment in order to eliminate errors caused by D.C. drift, the operations I and II, just outlined are repeated III, IV with the polarity of the supply voltage reversed, and the duration of phases II and IV are summed (i.e. averaged). As described the capacitances whose ratio is to be measured are those of capacitors 12, 13, Fig. 1. In phases I and II a source 10 is arranged to produce A.C. of a first phase, referred to as "positive" and in phases III and IV the source is arranged to produce A.C. of opposite phase, referred to as "negative". In phase I a switch 16 is closed thereby producing a voltage (= VC12/C10) proportional in amplitude to C12 at the output of an amplifier 18. This voltage is synchronously rectified 23, 24, and integrated 20, 21 positively, Fig. 2e, I. Phase I continues until clock pulses 28 cause a divider 30 to produce an output. Phase II then commences with switch 17 closed, rather than switch 16, and a voltage (= VC13/C19) proportional in amplitude to C13 at the output of amplifier 18 is rectified 23, 24, in the opposite phase so as to drive the integrator 20, 21 negatively. Whilst this is occurring, clock pulses pass via a gate 34 to a counter 35, and when the integrator returns to zero, this being detected by a device 36, the divider 30 is reset to zero, thereby removing its output signal, and phase II terminates with a count proportional to its duration residing in counter 35. Phases III and IV follow using the negative supply voltage, and during phase III the count (=t 1 ) that was in the counter 35 is transferred to an accumulator 39, to which at the end of phase IV is also transferred a count proportional to the duration of phase IV. Thus, at the end of all four phases the final count stored in the accumulator 39 is proportional to the average duration of phases II and IV, which can be seen to be proportional to the required ratio (= C12/C13).
Patent GB-1140855-A (GB)
Title: Method and composition for chemically polishing metals
Inventor: MICKELSON FLOYD LOUIS
IPC: C23G1/19
Filed: 1966-07-20
Abstract: 1,140,855. Detergent compositions. DIVERSEY Ltd. 20 July, 1966 [20 July, 1965], No. 32658/66. Heading C5D. [Also in Division C7] A detergent solution comprises (% by weight) 1 to 10 HC1, 1 to 8 HNO 3 , 0 to 60 phosphoric acid, and 0À2 to 15 surfactant. The surfactant may be as described in Specifications 889,571 or 1,140,856. In an example, a steel sheet is first degreased in a bath consisting of (% by weight) sodium hydroxide 50, sodium carbonate 47, sodium oleate 3, rinsed with water, immersed in an oxidizing solution consisting of (% by weight) sodium hydroxide 7.9, potassium permanganate 3À2, sodium carbonate 0À7, and water 88À2, rinsed with water and then immersed in a neutralizing solution consisting of (% by weight) phosphoric acid 5, xylene sulphonic acid 5, octyl phenoxy polyethoxy ethanol 5, sodium dodecyl diphenyl ether disulphonate 2, and water 83.
Patent GB-269848-A (GB)
Title: Improvements in the construction of flexible aeroplane wings with variable profile
IPC: B64C3/50
Filed: 1926-12-29
Abstract: 269,848. Antoni, U. Dec. 29, 1926. Planes, construction of; steering, balancing, and regulating altitude. - Planes with variable camber are formed with movable front and rear sections 1, 20, the part AB of the rear section adjacent the fuselage being automatically flexdble, and the front section and the remainder of the rear section being movable under the control of the pilot. The wing framework comprises a pair of spars 4, 19 connected at intervals by ribs 35. Front shaping ribs 1, formed with arms 5, Fig. 3, are fastened to the leading edge member 2 and are pivoted at 10 to the bottom of the spar 4, which passes through holes 3 sufficiently large to permit rocking movement of the ribs 1, the upper parts of which are held between pairs of guides 12 mounted on the spar. The arms 5 are connected by links 13 to arms 14 fixed to a spindle 15 journaled on the members 35 and rotatable by a lever 36. That part of the rear section which is movable by the pilot consists of shaping ribs 20 similarly pivoted on the rear spar 19, their arms 16 also being connected by links 17 to the arms 14 to permit the pilot to depress the front and rear sections simultaneously. Upper and lower boom strips 8, 9 are fixed in recesses 6, 7 in the shaping ribs 1, whilst the rear ends are slidable in recesses 25, 26 in the ribs 20. At the centre these strips are spaced apart by sleeves 34 fixed to the arms 5. The wing profile at the upper junction of the rear section is maintained by a covering strip 27 secured to the upper booms 8. The surface covering of the front part of the wing is secured above the strip 27, whilst that of the rear part is secured below the strip 27. The automatically flexible rear section AB of the wing is provided with arms 20<1>, Fig. 2, connected by pivots 28 to the top of the spar 19, and carrying sleeves 34 in which slide the boom strips 8, 9 which are held together towards the trailing edge by pairs of triangular frames 31, 32, the abutting sides of which are connected by elastic members 33 tending to hold the rear section in its normal position but permitting upward flexure. The boom strips 8, 9 pass to the front section through guides 29, 30 on the spar 19. The flexibility of the portion AB is increased towards the fuselage to assist automatic balancing.
Patent GB-1000669-A (GB)
Title: Baths for the production of electrolytic metal coatings
IPC: C25D3/02
Filed: 1962-08-28
Abstract: Metal plating baths are improved by adding compounds of formula <FORM:1000669/C6-C7/1> where R is aliphatic, cycloaliphatic, or aromatic residue, X is a hetero atom, e.g. O, NH, NR, or S, R1 is a divalent hydrocarbon residue containing an aryl group, G is H or a base, either organic or inorganic.  For example, N-butyl dithiocarbamic acid - S - benzyl ester - p - sodium sulphonate, n-butyl xanthogenic acid-S-naphthyl methyl ester-sodium sulphonate. The plating baths which may also include other lustering agents, wetting agents, and conducting salts, e.g. aluminium sulphate, may be applied to plating out Cu, Ni, Zn, Ag, Cd, bronze, or brass. Plating may be effected up to 70  DEG C., on bases of e.g. iron, steel, or zinc.  A flash coat of copper from a cyanide bath may first be applied.  Specification 888,493 is referred to.
Patent GB-1308750-A (GB)
Title: High frequency continuous-wave ignition system for an internal combustion engine
Inventor: CANUP R E
IPC: F02P7/067
Filed: 1971-07-14
Abstract: 1308750 Ignition systems TEXACO DEVELOPMENT CORP 14 July 1971 [27 Aug 1970] 32921/71 Heading F1B A high frequency continuous wave ignition system for an internal-combustion engine comprises a high frequency electric oscillator (not shown), a control winding 12 for starting and stopping oscillation of the oscillator according to whether or not current is flowing in the control winding, an electronic bi-stable control circuit 40 for starting and stopping current flow in the control winding, and an electric pulse generator for example, having a winding 32 for triggering the control circuit successively from one of its bi-stable states to the other, the electric pulse generator being adapted to produce a train of triggering pulses by interaction between a fixed part and a part drivable in rotation by the engine. A unijunction transistor oscillator 82 is provided associated with a capacitor 87 and a resistor 86. A pulse will be produced after a predetermined time delay if the engine should stop with the current cut off from the control winding 12. Such a pulse will cause the bi-stable circuit to be switched back so as to cut off the oscillator.
Patent GB-1270713-A (GB)
Title: Weight transfer hitches
Inventor: BUNTING ERNEST V
IPC: B62D53/08
Filed: 1969-06-30
Abstract: 1,270,713. Weight transfer. MASSEY-FERGUSON Inc. 30 June, 1969, No. 32979/69. Heading A1P. A weight transfer hitch H comprises a frame 40 having a rearwardly extending bearing portion 46 the vertical bore of which receives a journalled shaft 48. Two longitudinal members one of which can be extended and contracted are fixed to brackets 50 and 56 by horizontal pivot pins 54, 58. The extensible member comprises a piston and cylinder arrangement 60 subject to pressure control and the other ends of the members are pivotally connected at pivot 62. A weight transfer element W including a pair of generally triangular plates 70 joined by spacer members 72 and 73 is pivoted centrally on a pin 68 about a longitudinal axis adjacent the pivot 62. Two chains 76 hooked one on each of the members 72 are connected to a cross piece 80 extending below the tongue 32 of the implement, and pass one on either side of the power take off connection 34. If there is no power take off connection the weight transfer element W may be rotated 180 about the pin 68 and a single chain, fixed to the spacer 73, may be used centrally. An overload release mechanism comprises a breakable pin which extends through the pivot pin 68 holding the element W in place. Any undue axial force causes the pin to break and the load transfer mechanism to become detached. The vertical pivot pin 48 of the swing- ing boom is very near to the axis of the coupling pin 30 connecting the implement tongue to the tractor so that the chains 76 remain substantially vertical on turning of the tractor. A valve V of the pressure control hydraulic circuit may be connected to the frame 40 and be operated by a cam surface (150) Fig. 7 (not shown) on the boom to reduce pressure in the cylinder 60 when the tractor turns, so that manoeuvering is facilitated. The hitch H may be connected to a tractor with power lift mechanism the hydraulic cylinders of which may be operated in parallel with the cylinder 60 of the hitch H via a suitable linkage Fig. 9 (not shown) which may in turn be fixed to a three point linkage on the tractor.
Patent GB-294046-A (GB)
Title: Improved portable tent
IPC: E04H15/06
Filed: 1927-12-06
Abstract: 294,046. Westenholz, T. F. Dec. 6, 1927. Tents; tent poles and tentpole fittings. -- A portable tent adapted for transport upon a motor car, comprises a casing 1 corresponding in shape to a spare tyre and adapted to contain the folded tent 10, a carpet 9, mattress 8, a. table 4, sectional pole 6, and tent pegs 7. The casing is retained in circular shape by two rings 2, 3, one of which may be used as a support for the tent cloth when erected. The table 4 is slidable along the tent pole and when raised may serve as a clothes hanger and shelf.
Patent GB-407145-A (GB)
Title: Improvements in knitting pins
Filed: 1932-11-23
Abstract: 407,145. Knitting-pins. HEATH, F. G., St. George's Works, Birchfield Road, Headless Cross, Redditch, Worcestershire. Nov. 23, 1932, No. 33039. [Class 74 (ii).] A rigid point portion 10 of a knitting pin, which is formed separately from the stem, is subsequently attached to it, either fixedly or slidably, by means of a tubular portion 11, or 15, provided (e.g. by swaging) with an integral tubular extension 12 or 16 of reduced diameter for receiving the stem 13, or 17. The stem may be flexible or solid, when it too may have a similar tubular extension, to receive a second stem. Specifications 216,234, 248,564, [both in Class 74 (ii)], and 406,435 are referred to.
Patent GB-737069-A (GB)
Title: Apparatus for the separation of sheets from a pile of such sheets
IPC: B65G59/02
Filed: 1953-11-27
Abstract: 737,069. Feeding metal sheets. AKTIEBOLAGET SVENSKA METALLVERKEN. Nov. 27, 1953 [Nov. 28, 1952], No. 33051/53. Class 100 (1). Sheet-separators.-Metal sheets are separated from a pile 47 by means of a reciprocating carriage having at least one pair of feed rolls 19, 20 therein and a set of fingers or bars 31, carrying a knife-edge 32, adjustably mounted thereon, such that as the carriage moves toward the pile the edge 32 enters the pile below the top sheet 46, and this sheet is caused to enter the bight of the feed rolls 19, 20. The roll 20, which is constantly rotated by a motor, is lowered towards the roll 19, and the sheet 46 is fed over a table 40 which is secured to the carriage. The operator lifts up the front edge of the top sheet to allow the knife-edge 32 to be inserted into the pile. The carriage comprises two horizontal beams 3, a rear beam 4, two uprights 5, two struts 6, and a cross-beam 7, and sets of wheels 8, 9 on the beams 3 engage, respectively, the lower and upper flanges of a fixed frame 1. In addition, rollers 10 engage the webs of the frame 1 to prevent side-play between the carriage and frame. A nut 11 on the carriage engages a lead-screw 12 which is driven by a reversible motor 16 to cause reciprocation of the carriage. A frame 18 on the carriage carries the two rolls 19, 20, the roll 20 being movable toward and away from the roll 19 by known means, such as a hydraulic piston and cylinder device, and being driven through chain and sprocket gear, and worm gearing 25, by a motor 23. The fingers or bars 31 are pivoted at 22 to the frame 18. Attached to each end finger 31 is one end of a cable 33 which is coiled on a wheel secured to a cross-shaft which can be rotated by a hand-wheel 36 to adjust the slope of the fingers 31. The table 40 is hooked at one end 41 on the carriage, and at the other end has rollers 41 which rest on a fixed table 43. More than one sheet can be separated at each operation.
Patent GB-1253384-A (GB)
Title: Improvements relating to the production of laminates
Inventor: NORMANTON JOHN REGINALD
IPC: D06M17/00
Filed: 1968-07-11
Abstract: 1,253,384. Laminates. MARPLE PRINTING CO. Ltd. 9 May, 1969 [11 July, 1968], No. 33208/68. Addition to 1,241,799. Heading B5N. [Also in Division B2] The apparatus for applying adhesive to a moving fabric claimed in the parent Specification is modified by the inclusion of a further adhesive applying assembly comprising a roller 50 and trough 52, spaced relative to the first such assembly 26, 32, for applying adhesive to a second web B which is then laminated with a first web A at a nip between steam-heated variable speed rollers 28 and 58. A third web C may be laminated between the other webs by tracking it to the nip via a variable-speed conveyer 62 and a universally movable roller 30 or 60. The webs A and B may be fed to the adhesive applying assemblies via conveyers 18 and 42 having convexly curved supporting surfaces and expander rollers 22 and 48 which are movable relative to the assemblies for varying the angle of lap between fabric and roller 26 or 50. The web A may also travel via a conveyer 12, tension rollers 14, photo-electric edge-sensing means 20 and a stenter chain conveyer 16. After passage through the nip 28, 58, the laminate passes via nip 28, 68 to a steam-heated cylinder 72 with which it is held in contact by means of an endless flexible blanket 74 and then to storage via a nip 72, 84. The webs may be fabrics of natural or synthetic fibres, or plastics or foam sheeting and in particular, webs A and B may be fabrics of "Orlon" (Trade Mark), acrylan, jersey, acetate tricot or nylon tricot and web C may be polyurethane foam. The adhesive may be polyvinyl acetate or an acrylic, urethane or nitrile.
Patent GB-996200-A (GB)
Title: Photographic camera
Inventor: HAHN ERICH
IPC: G03B7/04
Filed: 1961-09-15
Abstract: 996,200. Exposure meters. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. Sept. 15,1961, No. 33232/61. Heading G2A. A photographic camera comprises an exposure meter including a moving coil rotatable about a rotatably mounted magnet core a photo-cell, and a member for setting diaphragm aperture or exposure time, a first means coupling the setting member to the return spring for the moving coil for adjusting a pointer on the coil to a fixed mark on the camera body, and a second means coupling the setting member with the magnet core to adjust the magnetic field. As shown, a setting knob 7 has a cam 6 and an arm 7, the latter connected to a stirrup 3 which carries a pin for adjusting the return spring 4 of a moving coil meter 2. The cam 6 has a follower 13 which through rack 14 and gearing 15,16 adjusts a yoke 17 connected to a magnet core 19 to vary the characteristics of the meter so that linear movement of the setting knob 7 is obtained.