baber/WOPTO huggingface dataset:
Patent GB-529370-A (GB)
Title: Improvements relating to spring bolts, particularly for windows
IPC: E05B63/18
Filed: 1939-02-02
Abstract: 529,370. Bolt fastenings. MACKENZIE, A., and MACKENZIE, J. Feb. 2, 1939, No. 3572. [Class 44] In bolt fastenings using a spring-loaded bolt rotated by hand to hold the bolt in the position in which the spring is compressed, the bolt has portions of different diameters to provide a shoulder co-operating with the casing or a part carried thereby to limit movement of the bolt in the direction in which compression of the spring occurs. A collar may also be provided on the bolt in known manner to limit movement in the opposite direction. The invention is generally applicable, but is particularly described for use on window sashes. Figs. 1-3 show the bolt 1 slidable in a casing 6 let into the lower sash 2, the casing housing a spring 17 surrounding and serving to shoot the bolt, the spring being compressed on retracting the bolt by ring 15 or knob-handle. A shoulder 19 between bolt positions of different diameter limits movement of bolt in this direction. The spring abuts against one end of the casing and against a collar 18 on the bolt which limits shooting movement of the bolt. The bolt has a portion 20 with flats, slidable in a correspondingly shaped slot in a bush 10, the part 20 being withdrawn from the bush when the bolt is retracted, and engaged by rotation with the inner end of the bush to hold the bolt retracted. The bolt engages an apertured plate 4 secured to the face of the upper sash bar 5. The Specification describes alternative constructions in which parts 10, 20 are replaced by a cross-pin on the bolt cooperating with a slot in the casing, or by a pin in the casing co-operating with a slot in the bolt, and in which the bolt end, which may be tapered or bevelled, engages an aperture in an L-shaped plate mounted on the upper sash bar. Fig. 7 shows the shoulder 19 and collar 18 provided on a bolt which is retracted by the spring 17. In this form the parts 10, 20 may serve to retain the bolt in a partly shot position. When the bolt is fully shot a T-head 29 thereon passes through, and is engaged by rotation behind, an elongated aperture 3 in plate 4, the spring now serving to pull the sashes together. Modifications are described in which parts 10, 20 are omitted, and in which the rear face of the T-head 29 may be conical so as to draw the sashes together by cam action when the head is rotated into engagement behind plate 4.
Patent GB-654961-A (GB)
Title: Improvements in and relating to the hardening of alloys
IPC: C22F1/00
Filed: 1946-02-05
Abstract: In a method of hardening an alloy by the indiffusion of a non-metal at elevated temperatures the alloy is in the monocrystalline state during the hardening.  An alloy of silver with 0.3 per cent of magnesium in the form of a monocrystalline rod may be hardened by heating in air for 27 hours at 800 DEG C and may afterwards be deformed, e.g. by rolling.  Hardening may be obtained by heating in air, nitrogen or ammonia, and alloys of copper and beryllium or iron and aluminium may also be so hardened.  Annealing after deformation does not affect the hardness.  Specification 654,962 is referred to.
Patent GB-704586-A (GB)
Title: Improvements in or relating to devices for sectional radioscopy
IPC: A61B6/02
Filed: 1952-02-12
Abstract: 704,586. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 12, 1952 [Feb. 15, 1951], No. 3684/52. Class 98(1) [Also in Group XL(a)] In a device for producing visible images of thin sections of objects including a source of X-rays moving along a path lying in a plane, an image is produced on the screen of a stationary electronoptical image converter which includes means for converting the moving X-ray image into a stationary and directly visible image. As shown in Fig. 1, the object 3 is placed between an image converter 6 and an X-ray tube 1. The tube focus is movable in a straight line, and the image of a plane 12 of the object 3 is formed on the fluorescent screen 4 of the image converter. When screen 4 is energized, electrons are emitted from a layer 9 in contact therewith, and these electrons are focused as by a magnetic lens 10 on to a fluorescent screen 8. A variable deflecting field varies with the displacement of the tube 1 so as to render the image of the selected section stationary on the screen 8. The deflecting field may be provided by plates supplied with a variable electric potential, or by magnetic deflection coils .13. The X-ray tube may move in a circular path, in which case two pairs of plates or coils at right-angles are provided and are supplied with voltages or currents in quadrature. The amplitude of the deflecting field may be varied to select 'the section of the object 3 to be reproduced. In a modification. Fig. 2, the X-ray tube 17 is stationary, but its focal spot is movable. Tube 17 has an anode 18 having a large surface, on to which a stream of electrons emitted by a cathode 21 is directed by electrodes 22, 23. The electron stream can be deflected by means of plates 25 connected to a source 34 of alternating potential. An image, which moves as the focal spot moves, of the object 26 is formed on the photo-emissive screen of the image converter 27. Electrons from screen 28 pass through an aperture 30 in the anode 29, and pass between deflector plates 32 which are so energized that the final image formed on screen 31 is stationary. To this end both pairs of deflector plates 25, 32 may be supplied from a potentiometer 33 connected across the voltage source 34, which may be a transformer connected to A.C. mains.
Patent GB-600401-A (GB)
Title: Improved apparatus for climbing steep inclines or vertical surfaces
IPC: A62B1/00
Filed: 1942-03-21
Abstract: 600,401. Vehicle wheels. SAULNIER, R. March 21, 1942, No. 3780. Convention date, Jan. 18, 1941. [Class 79 (iii)] [Also in Groups XV and XXXIV] In order to increase ground adhesion and enable a vehicle or a man to travel along slippery surfaces and up inclines and vertical surfaces, the vehicle or man is provided with means such as an airscrew or reaction jets so as to provide a force towards the surface along which the vehicle or man is to move, said means being independent of the means by which the body is propelled. In the arrangement shown in Fig. 4 a motor vehicle 1 is held against a vertical wall by means of an airscrew 2<SP>1</SP>, the axis of which may be perpendicular to the wall as shown, or may be inclined so that the thrust of the screw has an upward component to assist in propulsion as well as an horizontal component. The vehicle is provided with an articulated undercarriage 3 in order to assist in surmounting projections 4 of the wall. The vehicle wheels may be formed with elastic fingers 6 as shown at the left side of Fig. 6, or with metallic gripping members, or they may have arms 7 provided with suckers 8 to increase adhesion. In the arrangement shown in Fig. 7, a vehicle 9 is pressed against a wall or ground surface by an inclined airscrew 10, the traction effort being provided by a man 11. A brake 13 on one of the wheels is controlled by a lever 15. In the arrangement shown in Fig. 8 a man carries a ring 17 having nozzles 18 supplied with compressed air by a pipe 19 and compressor 20. In a modification, the man carries an airscrew driven from a stationary motor vehicle through a long flexible shaft.
Patent GB-891937-A (GB)
Title: Torsion balance
IPC: G01G3/10
Filed: 1960-02-03
Abstract: 891,937. Weighing apparatus. TORSION BALANCE CO. Feb. 3, 1960 [July 21, 1959], No. 3803/60. Class 143. A torsion balance of the type having a base and a skeleton, the latter consisting of three trusses with truss bands attached to each of a pair of beams with the bands of the centre truss providing torsional fulcra for the beams, is provided with indicating means by which the inclination of the beam is used to measure weight. The indicating means may be an optical projection system and the lengths of the beam arms may be adjustable. The optical system O (Fig. 2) comprises a lamp housing 90 from which light emerges through a condenser lens 91 to cast a shadow of a vane 83 carried by the upper beam 11 on to a projection lens 92 or 92a. An image of the upper edge 84 of the vane is thus projected on to mirror 103 and via mirror 104 to fall on a graduated scale. The scale (not shown) has two sets of graduations each corresponding to the use of one of the lenses 92, 92a only one of which (see Fig. 3) will at any time constitute the projection lens, according to the setting of the rotatable turret 110. The length of the beam arms is adjustable by means 60 which comprises a member 38 (see Fig. 5) to which the upper band 16 of the centre truss is clamped by a clamping plate 47, the member 38 being secured to the upper beam 11 by wedges 42, 43 and screws 44, 45 passing through the beam into threaded holes in the wedges. By loosening one and tightening the other of these screws the wedges cause movement of the member 38 along the beam so moving the effective pivot point thereof to lengthen one arm of the beam and shorten the other. A like arrangement 60a is provided on the lower beam 11a. Other adjustments provided for are (a) raising and lowering the end trusses with respect to the centre truss by bending the beam arms with the aid of screw tightened wedges 63, 63a, 63b, 63c; (b) movement of the centre of mass of the skeleton by adjustment of the position of weights 112 and 117; and (c) making the end trusses parallel with the centre truss by the means shown at 67 in Fig. 3. The latter comprises a block to which the upper truss band is clamped by a plate 75. This block 67 is secured to the beam 11 by a single screw 70 and has arcuate ends so that, on loosening the nut 74, the block may be rotated about the bolt. The lower trust band is secured to the lower beam 11 a in like manner, Fig. 3 also shows a stop 126 which, by the engagement of adjustable screws 128, 129 therein with an extension 145 carried by the skeleton, limits the beam deflection and which also, by a guide-way 127 embracing the end trust 10a, prevents excessive twist of the skeleton about the vertical axis. Twisting is also resisted by the stop member 125 (Fig. 2) acting on the lower beam 11a. The movement of the beam, is damped by an adjustable dashpot Fig. 8 (not shown) and the entire apparatus is enclosed in a casing Fig. 1 (not shown) whose upper cover is surmounted by a scale pan attached to the ends of the upper beam and by the scale of the optical system.
Patent GB-502209-A (GB)
Title: Improvements in hinges and method of mounting automobile doors therewith
IPC: E05D7/06
Filed: 1938-02-07
Abstract: 502,209. Doors for passenger vehicles. ATWOOD, S. B., and ATWOOD, J. T., (trading as ATWOOD VACUUM MACHINE CO.). Feb. 7, 1938, No. 3817. Convention date, April 5, 1937. [Class 103 (ii)] [Also in Group XXV] A hinge of the type described in Specification 502,986, [Group XXV], has means allowing the positions of the socket member 21 and gooseneck member 22 relative to the door and door post respectively to be readily adjusted. The bolts 27 pass through slotted holes 27a in the base 25 of the member 21. A clamping plate 35 on the door secures the shank of the gooseneck member and both are serrated. The socket member 21 may be held in its final adjusted position by dowel pins 39. In mounting a door, the gooseneck and socket members are loosely held in position, the door is positioned in its frame by means of shims placed between it and the frame, and finally, the bolts 27 and 36 are tightened. The shank 28 may be circular in shape to allow for angular adjustment in the vertical plane of the gooseneck member-22. In a modification the end of the shank is knurled and held between two clamping plates attached to the door. The pillar 19 and door 20 may be bulged to accommodate the hinge on the outside 43, 43<1> as shown or on the inside.
Patent GB-490289-A (GB)
Title: The manufacture of azo dyestuffs
IPC: C09B29/00
Filed: 1937-02-09
Abstract: Azo dyes are prepared by combining diazotized amines of the formula H2N-aryl-SO2-alkyl-COOH wherein aryl means a radicle of the benzene series containing the amino group in m- or p-position to the -SO2- group, with amines or phenols of the benzene series or pyrazolones or tetrahydronaphthoquinolines, which coupling components are free from carboxylic and sulphonic acid groups.  They are especially useful for dyeing and printing acetate artificial silk, some giving pure white discharge effects.  In examples, dyes from the following are prepared: diazo components: 3- or 4-aminophenyl-sulphonyl-acetic acid; 3-methoxy-4-aminophenyl-sulphonyl-acetic acid; 2- or 3-chloro-4-aminophenyl-sulphonyl-acetic acid; 6-methyl-3-chloro-4-aminophenyl-sulphonyl-acetic acid; 2,5 - dichloro - 4 - aminophenyl - sulphonyl - acetic acid; 3-chloro-4-aminophenyl-sulphonyl-propionic - acid and 2 - nitro - 4 - aminophenyl - sulphonyl-acetic acid; coupling components: N.N-dimethyl-, N-benzyl-, N.N-dioxyethyl-, N-oxyethyl-N-butyl-, and N-oxyethyl-N-cyanethyl-m-toluidine; N.N-dimethyl-, N.N-diethyl and N-oxyethyl-N-methyl-aniline; 1-amino-, 1-N.N-dioxyethylamino-, and 1-(N-oxyethyl-N-butylamino)-2-methoxy-5-methylbenzene; 1-phenyl- and 1 - (21 - chlorphenyl) - 3 - methyl - 5 - pyrazolone; 1 - phenyl - 5 - pyrazolone - 3 - carbonamide; p-cresol and 1.2.3.4-tetrahydro-3,7-dihydroxy - 11.21 - naphthoquinoline(acid). Specification 415,753 is referred to.  According to the Provisional Specification, dyes are prepared by coupling any component containing no substituents causing solubility in water, with any diazotized amines of the above general formula.  Aminophenyl - sulphonyl - carboxylic acids are prepared by oxidizing the alkali salts of the corresponding acetylamino - phenyl mercaptoalkyl-carboxylic acids with potassium permanganate and removing the acetyl group.  3 - Chloro - 4 - aminophenyl - sulphonyl - propionic acid is obtained by condensing 3-chloro-4 - aminophenyl - mercaptan with b  - chlorpropionic acid, acetylating, oxidizing the acetyl derivative and saponifying the acetyl group.
Patent GB-222750-A (GB)
Title: Spring suspension of an auxiliary engine on a cycle frame
IPC: B62M7/00
Filed: 1924-02-14
Abstract: 222,750. Frova, G., Sgarbi, L., and Boblinger Werft Akt.-Ges. Feb. 14, 1924. Motors, mounting or supporting.-The engine is flexibly suspended at approximately opposite points in the frame of a cycle. Each spring support comprises two compression springs arranged between a central fixed abutment 7 on the cycle frame and end abutments 5, 6 through which passes a bolt 4 connected to the engine suspension bracket. One such support is arranged on one side of the engine parallel to the frame tube 8 while two such sets are arranged one on each side of and at right angles to the frame tube 17.
Patent GB-121866-A (GB)
Title: Improvements in Telephone Receiver Earpieces.
Inventor: BROWN ALFRED CHARLES
IPC: H04R1/10
Filed: 1918-03-06
Abstract: 121,866. Brown, A. C. March 6, 1918. Ear-pieces. - The central aperture in the face-plate of a telephone receiver is surrounded by a flexible fluid - filled tube to which the ear is applied. The face-plate e, provided with a central aperture, clamps the diaphragm f to the casing h by means of a ring g; and the aperture is surrounded by a flexible fluid-filled ring c. The aperture may be provided with a tube d.
Patent GB-711397-A (GB)
Title: Voltage regulator equipment for a.c. generators
IPC: H02P9/32
Filed: 1952-02-14
Abstract: 711,397. Automatic voltage control systems. PETRALIAS, N. A. Feb. 14, 1952 [Aug. 8, 1951], No. 3967/52. Class 38(4) In a voltage regulator for an A.C. generator G, Fig. 1, wherein the exciter voltage is varied in accordance with the generator load, the exciter field CD is energized by a circuit including a rectifier A2 supplied by a current transformer CT in the load circuit and a rectifier A1 supplied from a voltage transformer VT in series with a reactor VR the D.C. winding of which is energized from VT1 over a voltage discriminating circuit VCD. The rectifier circuit includes smoothing components R, K, C, C, and resistors RC, RT are provided for presetting the operating conditions of the generator. The voltage discriminating circuit VCD is shown in Fig. 2 and comprises two transformers 1, 2 fed from live voltage transformer VT1 over an inductance 6 and resistance 7 respectively. The two outputs are rectified and applied to the D.C. winding of reactor VR, a resistance 5 shunting rectifier 3. When the voltage from VT1 exceeds the normal value, the output of rectifier 3 exceeds that of rectifier 4, so that current flows only through resistance 5 and not through the saturating winding of VR; the impedance of VR thus remains high so reducing the voltage applied to rectifier A1, Fig. 1. If the voltage from VT1 falls below normal, the output of rectifier 4 exceeds that of rectifier 3, so that current flows through the saturating winding of VR thus reducing the impedance of the impedance winding VR increasing the field current of the exciter. The rectifier Va, Fig. 1, is a safety device to isolate winding FW from sudden increases in voltage from rectifier A1, A2.
Patent GB-348072-A (GB)
Title: Improvements relating to collapsable containers for medicinal and other preparationsand to hypodermic needles for use therewith
IPC: A61M5/32
Filed: 1930-02-06
Abstract: 348,072. Collapsable-tube nozzles. TORRENS, R. G., 85, Wimborne Road, Bournemouth. Feb. 6, 1930, Nos. 3984 and 5214. [Class 11.] A nozzle for use with collapsable containers for pastes or solutions comprises a hollow needle N, about 1 mm. in external diameter and 1 to 4 cms. long, secured in a reinforced portion M of the screw-cap A of the container. Alternatively the needle may be secured to a washer within an ordinary screw-cap, the screw-cap being bored to receive the needle. In both constructions a washer W is provided within the cap. Specifications 22685/92, 24629/10, 3468/12, [all in Class 11, Artists' instruments &c.], and 180,215, [Class 81 (ii), Medical &c. appliances], are referred to.
Patent GB-973899-A (GB)
Title: Novel steroid compounds and their preparation
IPC: C07J71/00
Filed: 1961-11-15
Abstract: The invention comprises the 3-ketals of 11b ,18-epoxy-18#x-methyl-pregn-4-en-3-one compounds having the formula <FORM:0973899/C1/1> in which R represents a ketal grouping, and R1 represents the grouping =H(OH) and R2 is hydrogen or R1 represents the oxygen atom =O of a keto group and R2 is a hydrogen atom, the ethoxalyl grouping or an iodine atom, and processes for the preparation thereof by saponifying a ketal of 18#x-methyl-20b -acetoxy-11b , 18-epoxy-pregn-4-en-3-one to form the 3-ketal of 18#x-methyl-20b -hydroxy-11b , 18-epoxy-pregn-4-en-3-one, oxidizing the latter to form the corresponding 20-keto compounds, reacting the 3-ketal of 18#x-methyl-11b , 18-epoxy-pregn-4-ene-3, 20-dione with ethyl oxalate to form the corresponding 3-ketal of 18#x-methyl-21-ethoxalyl-11b , 18-epoxy-pregn-4-ene-3, 20-dione, iodinating this compound to form the corresponding 3-ketal of 18#x-methyl-21-iodo-11b , 18-epoxy-pregn-4-ene-3, 20-dione, reacting this with an acyloxylating agent to yield the corresponding 3-ketal of 18#x-methyl-21-acyloxy-11b , 18-epoxy-4-ene-3, 20-dione which is optionally saponified. As acyloxylating agent there may be employed potassium acetate and as oxidizing agent chromium trioxide may be employed.  Specification 973,896 also is referred to.
Patent GB-1516063-A (GB)
Title: Assembly comprising an electric lead and a rotary connector for connecting the lead to an electrical appliance
IPC: H01R39/00
Filed: 1977-02-01
Abstract: 1516063 Rotary mounting for electric lead KAREL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 1 Feb 1977 [23 March 1976] 04029/77 Heading H2E An assembly comprises an electric lead 2 and a rotary connector for connecting the lead 2 to a rigid casing 3 of an appliance, e.g. hair curling device, comprises a body portion 1 supporting a ring 8 of mechanically durable insulating material whose peripheral surface serves as a bearing surface, the ring 8 forming a unitary support element 9 with a body 7 of insulating material that is interposed between coaxial connector components 5, 6. The element 9 has a cavity 10 which allows access to the conductors of the lead 2 to each of the connector components 5, 6.  As described, the body portion is soft and flexible plastics being moulded on to the element 9 which may be of nylon.
Patent GB-663849-A (GB)
Title: Improvements relating to apparatus for wiring boxes, cases, crates, bales and the like
IPC: B27M3/36
Filed: 1948-02-12
Abstract: 663,849. Bule-tying machines. STROWLGER, E. J. Feb. 12, 1949 [Feb. 12, 1948], No. 4149/48. Class 45 Apparatus for use in securing strands of wire or lengths of strip metal 5 under tension around a package comprises a support 1 on which the package is laid; a passage 3 through the support for the wire or strip 5, a reel 30 on which a supply of wire or strip is wound, means 4 for guiding the wire or strip from the reel through the passage 3 to be secured at a number of points and means 9, 14 for gripping the wire or strip and for applying successive tensions thereto after each securing operation. The support 1 is fixed to a channel section member 7 which has slots 12 in which one jaw 9 of a gripper is slidably mounted, to be retained in the uppermost parts of the slots by springs 11. The other jaw 14 of the gripper is pivoted to the jaw 9 by parallel links 13. It is held against jaw 9 by springs 15 and is opened by a footoperated lever 24 and link 26. Its downward opening movement is limited by a slotted link 21. Jaw 14 has a serrated tongue which enters a corresponding groove in the jaw 9. The binding wire or strip 5 passes from the reel 30, through a guide 32, over a guide pulley 34 between the jaws 9, 14 and through the guide 4 in a slot 3 in the table 1. In use a package is placed on the table against a guide 36 which is aligned with the wire guide 4 and the end of the wire or strip is stapled to the near side of the package. Tension is then applied to the wire or strip by means of the foot lever 24 which first moves the jaw 14 downwardly to grip the wire or strip between the jaws and then moves both jaws downwardly together against the tension of springs 11. The wire is then stapled manually to the top of the package, tension is released, the package rotated through a right angle, tension re-applied the next side stapled and so on until the wire or strip encircles the box, after which it is cut manually