baber/WOPTO huggingface dataset:
Patent GB-787884-A (GB)
Title: Improvements in zig-zag sewing machines
IPC: D05B19/00
Filed: 1956-03-02
Abstract: 787,884. Sewing machines. PHOENIX NAHMASCHINEN AKT.-GES. BAER & REMPEL. March 2, 1956 [March 2, 1955], No. 6645/56. Class 112 [Also in Group XXIV] Needles, shifting laterally. The oscillations of the needle-bar in a zig-zag sewing machine are produced by an endless belt 7 driven by the machine and provided with camming surfaces engaged by a follower 11 coupled to the needle-bar frame 15. The belt is exchangeable. is preferably made of plastic, and is provided with inwardly projecting teeth 7a engaging a driving pinion 6 and a spring-loaded idler pinion 8. The outer surface and the edges of the belt may be made with cam surfaces, and a second follower may be provided for controlling the feed dog. The belt may be made up from a single row or a plurality of rows of chain-links. In the latter case a separate follower is provided for each row. The belt and its driving pinion may be,exchanged for a pattern cam disc.
Patent GB-162245-A (GB)
Title: Improvements in line-lock mechanism for typewriters
IPC: B41J29/66
Filed: 1920-01-21
Abstract: 162,245. Alexander, J. Jan. 21, 1920. Line-locking devices.-In connection with a universal bar 5 operated by type-levers, a linelocking lever 9 adapted to be interposed at its lower end behind a shoulder 12 of the universal bar is pivoted to the type-lever segment 4 and projects at its upper end into the path of the margin stop 14, a spring 10 normally holding the lever against a stop 11 clear of the shoulder 12. To provide a release, the upper end 13 of the lever 9 is pivoted and pressed rearwards by a spring 16, and can be pressed forwards out of alignment with the margin stop by a finger 19 on a rockshaft 17 actuated through connections 21, 23, 24 from a key.
Patent GB-399397-A (GB)
Title: Improvements relating to refrigerating cycles in which the refrigerant is compressed
IPC: C09K5/04
Filed: 1933-03-04
Abstract: 399,397. Refrigerating. ESCHER WYSS MASCHINENFABRIKEN AKT.- GES., Escher Wyss-Platz, Z³rich, Switzerland. March 4, 1933, No. 6666. Convention date, April 5, 1932. [Class 29.] Vacuum systems.-Vinyl bromide or one of its higher homologues alpha- and beta-bromopropylene and alpha- and beta-chloropropylene is used as a refrigerant in compression systems, particularly where multistage centrifugal compressors are used and the evaporator is below and the condenser slightly above atmospheric pressure. In order to prevent polymerization of the refrigerant under the action of light a small quantity of iodine may be dissolved in the refrigerant. The medium leaking from the stuffing boxes that are above atmospheric pressure may be conveyed to and used as a sealing medium for the stuffing-boxes that are below atmospheric pressure.
Patent GB-124922-A (GB)
Title: Improvements in Electrically Driven Hoists.
IPC: B66D1/12
Filed: 1918-04-20
Abstract: 124,922. Veritys, Ltd., and Lanz, A. April 20, 1918. Self-sustaining gear.-In an electrically-driven hoist which runs in one direction only and drives a bollard drum through a high-efficiency gear, a centrifugally-controlled ratchet brake or clutch is applied to the motor shaft directly or indirectly to prevent the motor from being driven in reverse direction on failure of the current. Two ratchet pawls l<2> are mounted in a carrier l fixed to the end d<2> of the motor shaft d and engage a ratchettoothed ring m bolted to the hoist frame. Springs n normally press the pawls into engagement with the ratchet, but to avoid noise the ends l<5> of the pawls are weighted, or are acted upon by weighted parts, so that the pawls are disengaged by centrifugal action when the motor is running at normal speed.
Patent GB-1388265-A (GB)
Title: Preparation of antibiotic compounds
IPC: C07D499/00
Filed: 1971-03-12
Abstract: 1388265 6-Amino penicillanic acid GLAXO LABORATORIES Ltd 25 Feb 1972 [12 March 1971] 6708/71 Heading C2C In a process for the diacylation of a penicillin the 3-carboxyl group of a 6#-acylamino-2,2- dimethylpenam-3α-carboxylic acid is protected by forming a mixed anhydride with another carboxylic acid, especially acetyl, propionyl chloro- and di-chloro-acetyl chlorides, ethyl- and methyl-oxalyl chlorides, the protected compound is converted into the iminohalide then into the iminoether and finally hydrolysed with water under acidic conditions. Anhydride, imino halide and iminoether formation is carried out under standard conditions.
Patent GB-198103-A (GB)
Title: Improvements in hair waving appliances
IPC: A45D2/06
Filed: 1922-03-07
Abstract: 198,103. Brown, A. March 7, 1922. Hair-curling appliances.-A curler 1, Fig. 1, for permanent hair waving is provided with means for gripping the hair near the roots comprising a disc 2 secured to the stem of the curler, a second disc 3 rotatably mounted adjacent to the first, and a nut 4 for locking the disc 3. The fixed disc 2 has an open-ended slot of volute formation, and the disc 3 a radial U-shaped slot, so that relative rotation of the discs reduces the aperture formed by the combination of the slots and grips the tress of hair therein. The hair is wound as shown in Fig. 4, and the end secured by a spring clip 8 or otherwise. In the curler shown in Fig. 7, the disc 2 is secured to the end of a tube 9 and the disc 3 is mounted on the end of a stem 10 which passes through the tube 9 and is held in position by a nut 12. A spring 13 holds the discs in contact when the nut 12 is slackened. With the curler is employed a paper tube 15, Fig. 8, fitting closely round the edges of the discs 2, 3, and secured thereto during use by a spring 'band 16 the ends of which are drawn together by a toggle device 17.
Patent GB-1446693-A (GB)
Title: Hydrogen storage electrodes for galvanic cells
IPC: H01M4/24
Filed: 1974-02-14
Abstract: 1446693 Sintered electrodes DEUTSCHE AUTOMOBIL GmbH 14 Feb 1974 [17 Feb 1973] 6774/74 Heading C7D [Also in Division H1] A hydrogen-storage electrode for a re-chargeable alkaline cell comprises particles of active hydrogenstorage material in surface contact with and surrounded by TiNiz. The preferred active hydrogenstorage material is a titanium nickel alloy from the range between phases Ti 2 Ni and TiNi; alternatively the active material may comprise a lanthanum alloy, e.g. La-Co and La-Ni. In Fig. 1, the active particles are represented by 1, the TiNiz by 2 and the electrolyte by 5. The electrode of Fig. 1 is made by mixing sponge titanium and nickel powder and moulding and sintering in hydrogen to form a sintered tablet of composition Ti 1.17  NiHx. The tablet is comminuted and mixed with TiNiz powder this powder mixture being moulded under pressure and heat to form the electrode. A current conductor of expanded copper or nickel may be  incorporated in the electrode. Another electrode, is formed by different method which comprises coating powder grains of the active hydrogenstorage material with TiNiz and moulding the powder into a shaped body having pores.
Patent GB-542592-A (GB)
Title: Improvements relating to the control of the temperature of charges supplied to internal combustion engines
IPC: F02B29/04
Filed: 1940-04-16
Abstract: 542,592. Controlling temperature of charge. HELMORE, W. April 16, 1940, No. 6855. [Class 7 (iii)] In an induction system for supercharged aircraft and other engines provided with a heat-exchanger, means are provided for controlling the temperature or flow, or both, of the cooling-fluid passing through the heatexchanger. In Fig. 1, mixture is supplied by a blower 11 from a carburetter 10 to the induction system 22, the temperature of the charge being controlled by a heat-exchanger 12 through which air passes from an inlet conduit 13 to an outlet conduit 14. Means is provided for adjusting a scoop 9 on the inlet 13 so that it projects more or less into the air stream, the adjustment being effected by links 19 connected to the hand control 18 of the engine throttle. An ejector 16 may be provided on the outlet 14, and may also be retractible. Instead of air, cooling-water or oil may be used in the heatexchanger, the rate of flow being mixed by a throttle valve which is adjusted together with the engine throttle, or automatically by a thermostat, or by the automatic boost control. In other forms, the temperature of the fluid supplied to the heat-exchanger may be varied by a mixing-valve controlling hot and cold supplies from the radiator, or by using air which is first passed through an additional heat-exchanger controlled by adjustable shutters.
Patent GB-398203-A (GB)
Title: Improvements relating to driving mechanism for cylinder printing presses
IPC: B41F3/46
Filed: 1932-03-08
Abstract: 398,203. Printing-machines. ROCKSTROH, W., Rookstroh-Werke, Heidenau, Dresden, Germany. March 8, 1932, No. 6913. [Class 100 (ii).] Cylinder machines.-The various elements of a cylinder machine are driven by gears arranged in a gear box a which is arranged between the parts b, c of the machine frame. The driving- motor k is bolted to the box a, and shafts d, g, i forming part of the gear box drive the reciprocating bed f, the continuously revolving cylinder h, and the rollers of the delivery mechanism respectively. Disconnectible couplings may be arranged between the gear box and the driven shafts.
Patent GB-453145-A (GB)
Title: Improvements relating to ships' hatchways
IPC: B63B19/24
Filed: 1935-03-05
Abstract: 453,145. Ships' hatches. JACKSON, C. A., 11, Brookside Gardens, Sunderland. March 5, 1935, No. 6946. [Class 113 (i)] The tarpaulins are clamped to the coaming c<1> by battens d. Bars hinged to the horizontal bulb angle b by pins h mounted in brackets j carry the battens d which are pressed against the tarpaulins by wedges m driven between the back of the bars f and brackets k mounted on the bulb angle b. Strips t prevent the wedges from rising. In a modification, the channel barf in which the battens d are mounted is arranged to slide in channels v<1> mounted on the coaming. Wedges m driven between the two channel bars force the battens against the hatch coaming.
Patent GB-747052-A (GB)
Title: Improvements in or relating to devices for indicating the condition of rest or movement of a rotatable shaft
IPC: G01P13/00
Filed: 1954-03-10
Abstract: 747,052. Cam-operated switches. EDEL. BLUT, J. March 10, 1954 [March 10, 1953; June 27, 1953], No. 6972/54. Class 38(5) [Also in Group XIX] A device for indicating the condition of rest or movement of a rotatable shaft comprises two-spring-loaded tappets actuated alternately by a cam device driven by the shaft for operating electrical contacts controlling an indicator provided with an intermittent contact device, the arrangement being such that when the shaft is at rest the indicator gives an intermittent indication whilst when the shaft is rotating the intermittent contact device is rendered inoperative. In one embodiment, Fig. 1, the shaft 2 is connected by a one-way coupling to a cam 3 which alternately pushes tappets 4, 4a outwardly of the casing 1 to close switches 7, 7a connected across an intermittent contact device 11 in circuit with a hand switch 13, a battery 15 and a lamp 18. The tappets move in extensions 1a of the casing 1 against springs 6 and pistons 5 delay their return movements. When the shaft 2 rotates counter-clockwise the cam 3 closes the switches 7, 7a in turn and the delay provided by the pistons 5 is such that the switches 7, 7a remain closed to short-circuit the intermittent contact device 11. The lamp 18 is therefore constantly lit. When the shaft 2 stops or rotates clockwise one or both of the switches 7, 7a will open and the intermittent contact device 11 will control the lamp 18. In a modification (Fig. 2, not shown) the tappets are replaced by spring- pressed pivoted levers each of which control pairs of contacts and the return movement of each lever is delayed by a diaphragm and associated spring-controlled non-return valve.
Patent GB-696747-A (GB)
Title: Improvements in folding beds
IPC: A47C17/40
Filed: 1952-03-18
Abstract: 696,747. Bedsteads; furniture combinations. DRIVER, W. D. March 18, 1952, No. 6999/52. Classes 52(ii) and 52(iii) A folding bed comprises a mattress frame 4 pivoted at 5, intermediately of its length, to the side walls 2 of an openfaced cabinet, a panel 7 secured to the underface of the mattress frame 4 an arm 8 pivoted to the head board 12 and to tension springs 9 acting as a counterbalance, a board comprising two pivoted portions 14, 15 for the purpose of holding the bed clothing in position against the mattress frame 4 when the bed is in closed position within the cabinet. The panel 7 may have on its outer face a simulated fire place 27, 28 which also serves to support the bed in its operative position, the fire place for the purpose being caused to slide towards the footend of the bed, by means of a pivoted arm 31, when the bed is lowered. The section 14 of the board is connected to the cabinet of a pivoted arm 21 until spring 25 control, the other section 15 being pivoted by a flange 19 to the head board 12 so that when the bed is in the cabinet the board, having moved, parallelly, towards the front of the cabinet, compresses the bed clothing against the mattress. Instead of a fireplace a table may be pivoted to the paned 17. A bed light may be housed in either housings 37, 54.
Patent GB-528789-A (GB)
Title: Means for determining the rate of change of current in a d.c. electric circuit
IPC: H02P7/34
Filed: 1939-03-03
Abstract: 528,789. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., FENEMORE, A. S., and SHAW, N. H. March 3, 1939, No. 7011. [Class 38 (iii)] Field control; varying E.M.F.-An inductive winding, for example the field winding of a motor 10 is energized from a D.C. source 6 and divided in two equal parts 1, 2, arranged as opposite alternate arms of a wheatstone bridge, the other arms of which comprise resistances 3, 4, each equal to the resistance of one of the field sections. Thus the time constant of the field circuit may be changed by the opening and closing of a switch 5 connecting the balanced diagonal points of the bridge. The ratio of the resistance 3 to the resistance of the field section 2 and also the ratio of the resistances of the other arms may differ from unity to give different degrees of adjustment of the time constant. Further adjustment may be obtained by means of a resistance in the supply to the field circuit or by a machine 7 driven with the supply generator 6 at constant speed and series excited by a winding 7a inducing a voltage on the machine opposing the supply voltage. A regulated separate excitation of the machine 7 is effected by a winding 7b. Further windings 7c, 7d on the machine 7 energized by the currents passing to the field sections 1, 2. may give an increased time constant to the circuit comprising the field 1, 2. The switch 5 may be operated by the controller for the motor 10, or by a polarized relay. The coil on each main pole of the motor 10 is divided into two parts included respectively in the winding sections 1, 2, or alternatively the N. pole windings may be grouped to form one section of winding and the S. pole the other. Specification 428,806 is referred to.
Patent GB-506423-A (GB)
Title: Sensitizing dyes for silver halide emulsions
IPC: G03C1/16
Filed: 1937-12-29
Abstract: 506,423. Sensitizing dyes. SEABROOK, H. (Perutz Trockenplattenfabrik, MunchÚn, Ges., O.) Dec. 29, 1937, No. 7079. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 14,1937.] Drawings to Specification. [Class 2 (iii)] [Also in Group XX] A sensitizing dyestuff is produced by condensing a substituted 4 : carbethoxy-2: methylthiazole quaternary salt with a substituted or unsubstituted 2-iodoquinoline quaternary salt. The dyes have the general formula In an example, 3.3 gins. 2: methyl-4 : carbethoxy-5 @ methyl-thiazol methiodide, 4.6 gms. 2-iodo-6 : ethoxy-quinolin ethiodide and 46 gins. of sodium hydroxide in 100 c.cs. alcohol are heated in a water bath for half an hour. The mixture is poured into water. The Specification as open to inspection under Sect. 91 comprises also the preparation of by condensing N : 2 : 5-trimethyl-4 : carhethoxy-thiazolium iodide with pyridine and orthoformic acid ester. This subject-matter does not appear in the Specification as accepted.
Patent GB-1392174-A (GB)
Title: Rotary internal combustion engines
IPC: F02B53/00
Filed: 1971-03-17
Abstract: 1392174 Rotary positive displacement machines SVENSKA ROTOR MASKINER AB 30 March 1972 [17 March 1971] 7079/71 Heading F1F A rotary internal combustion engine comprises a power rotor 54 having lobes 76 and interspaces 78 which intermesh with the grooves 66 and lands 58 of a rotary abutment member 56. A casing 20 has two cylindrical chambers 24, 26 which coaxially house the respective rotor 54 and abutment member 56, each lobe 76 of rotor 54 being disposed outside the rotor pitch circle and each groove 60 being disposed inside the abutment member pitch circle. Each lobe 76 has convex flanks 80,82 joined by a tip portion 84 coaxial with rotor 54 and each groove 60 is defined by concave flanks 62,64 joined by bottom portion 66 coaxial with member 56. Flanks 80,82 are epitrochoidal, being generated by the outer edges 70,72 of the lands 58. Passages 40,42,44,46 are fresh air inlet ports, ports 48 and 50 being used for scavenging and ports 49 and 51 for the exhaust of combustion products from interspaces 78 and grooves 60. Port 52 injects fuel. The various dimensions and angles C A , C R , R A , R R , D C , L, α, # and γ are critical within predetermined limits, α should be between 65 degrees and 80 degrees, L should be greater than 75% of C A , the total number of grooves 60 and lobes 76 should be less than ten, and there should be more grooves 60 than lobes 76, the difference being limited to a maximum of three. A part-spherical cavity 74 should be formed in portion 66 of groove 60. In operation, air is taken into interspace 78 and groove 60 through ports, 40, 42 and 44, 46. The interspace 78 and groove 60 are each then isolated when the following lobe 76 or land 58 engage the respective walls 36, 38 of the chambers 24, 26. Shortly after this, the leading land 58  of the groove 60 projects into the interspace 78 and compression begins, combustion fuel being fed through port 52. Compression continues until maximum intermesh occurs, as shown in Fig.1. At this point ignition occurs, being effected by sparking plugs in the rotor lobe tip and cavity 74 Fig.3 (not shown). Expansion then commences, the interspace and groove, 78, 60 finally separating again before respective discharging their combustion products through exhaust ports 49, 51.
Patent GB-860592-A (GB)
Title: Improvements relating to presses
IPC: B30B1/23
Filed: 1959-03-02
Abstract: 860,592. Momentum power-storing apparatus. ZDARSKE STROJIRNY A SLEVARNY NARODNI PODNIK. March 2, 1959 [March 7, 1958], No. 7081/59. Class 10. [Also in Group XXII] In a press particularly for metal working, having a ram 1 slidable in a press frame 10 and actuated by an hydraulic motor 3, a threaded spindle 4 carrying a flywheel 5. is rotated by the movement of the ram and acts as a momentum storing device to apply an inertia force during pressing. The spindle is rotatably supported by a bearing 11-13 in a table 6 fixed to the frame 10 and has a non-self-locking thread engaging with a nut 8 fixed to the ram 1 whereby downward movement of the latter causes the spindle and flywheel to rotate. Dies 7 are carried respectively by the ram and table. The frame 10 is of oval section, Fig. 2 (not shown), and is mounted over a pit which receives the flywheel 5. The ram may be of integral construction or in parts.
Patent GB-799729-A (GB)
Title: Improvements in the manufacture of spirally twisted strips of corrugated metal foil
IPC: B21D37/20
Filed: 1957-03-04
Abstract: 799,729. Making ornamental metal work. DELEUZE, J. F. March 4, 1957 [April 20, 1956], No. 7084/57. Classes 83 (2) and 83 (4). [Also in Group XV] In a method of making permanently spirallytwisted garlands, short lengths of transverselycorrugated thin strip metal foil, e.g. aluminium, are twisted spirally in combination with a simultaneous or succeeding axial compression. The pitch of the spiral is controlled by'the degree of axial compression.
Patent GB-1210864-A (GB)
Title: Improvements in or relating to metal frames for injection moulded plastics articles
IPC: B29C65/56
Filed: 1968-02-13
Abstract: 1,210,864. Circumferential frame for injection moulding articles. ROHM & HAAS G.m.b.H. 13 Feb., 1968 [24 Feb., 1967], No. 7097/68. Heading B5A. A metal frame into which a plastics article e.g. a lamp cover for a motor vehicle can be injection moulded and in which the plastics material is not stressed has a wedge-shaped tongue extending around the greater part of the circumference; the tongue having no undercuts and extending into the space wherein the plastics article is to be moulded. The moulded plastics article 3 is shown before cooling on the left of Fig. 2 and after cooling on the right; stress due to contraction of thickness being avoided by contraction of the plastics material towards the thinner end of the tongue. The wedge angle γ is preferably given at any point by the equation where f is a value between 0À5 and 1À5 preferably 0À6-1À0, h is the mean thickness of the tongue, S is the distance of the point P on the tongue under consideration from a point R on the surface enclosed by the frame (in the same units as h) and # is the angle between the tangent to the frame at P and the line PR.
Patent GB-825443-A (GB)
Title: Improvements in or relating to electrolytic three-layer cells for the refining of aluminium
Inventor: RANSLEY CHARLES ERIC
IPC: F22B37/12
Filed: 1955-03-10
Abstract: 825,443. Casting composite - articles. BRITISH ALUMINIUM CO. Ltd. March 9, 1956 [March 10, 1955], No. 7137/55. Drawings to Specification. Class 83 (1). [Also in Group XXXVI] A titanium-carbide bar for use in an electrolytic cell (see Group XXXVI), has an aluminium sheath cast thereon. The bar is cleaned and electroplated with nickel or cobalt, which is fired on to the bar at 1050‹ C. in a reducing or neutral atmosphere. The coated bar is then set in a graphite mould, the bottom ¢ inch of the bar being inserted in a graphite jig and the bar is heated to 750‹ to 800‹ C., molten aluminium, e.g. of a purity of 99.2% at the same temperature being poured into the mould. After 15 minutes the mould is removed and allowed to cool, the cooling of a large feeding head at the top of the mould being delayed by total heating to encourage directional solidification of the metal towards the head.
Patent GB-416076-A (GB)
Title: Improvements in and relating to abrading wheels
IPC: B24D9/02
Filed: 1933-03-09
Abstract: 416,076. Grinding-wheels. WARBURTON, R. E. L., 42, Rutland Gate, South Kensington, London, and MOLLOY, L., 32, Thicket Road, Sutton, Surrey. March 9. 1933, No. 7138. [Class 60.] An abrading- wheel comprises a tubular abrading- element 8 mounted on a longitudinally split cylinder 2 of steel, with or without an interposed resilient sleeve 7 of rubber, felt &c., the cylinder being supported at its ends by the bevelled edges of discs 3, 3<a> and expanded to grip the element 8 by axial movement of the disc 3a. The discs 3, 3<a> have have D-shaped central apertures engaging a correspondingly sectioned part of a spindle 1, the disc 3 abutting against a collar 4 and the disc 3<a> being movable by a nut 5 screwing on the spindle. A cylindrical distance piece 6 may be located between the discs to prevent their tilting. In a modification, a spring is placed around the spindle between the discs. The discs may have radial strengthening ribs 10.