baber/WOPTO huggingface dataset:
Patent GB-632137-A (GB)
Title: Improvements in or relating to rotary blade dry shavers
IPC: B26B19/18
Filed: 1948-01-29
Abstract: 632,137. Dry shavers. FAIREY AVIATION CO., Ltd., GARRARD, E. C., and HARROLD, K. Jan. 29, 1948, No. 2722. Addition to 621,156. [Class 131] A dry shaver head as described in the parent Specification is formed in two parts 12a, 12b hinged at 19 along an axis parallel to and diametrically opposite the slot 13 in the head. The parts 12a, 12b are formed with interdigitated tongues 12d, 12c apertured to receive a hinge pin 19, C-shaped springs 20, 21 forcing the parts 12a 12b together to embrace discs 18 housing bearings 17 for the spindle 16 of a bladed rotary cutter. A pivoted selector bar 23, has a pin 24 at each end which projects into an eccentric cam groove 25. A rib on the selector bar selectively engages radial grooves for adjustment of the width of the slot 13. In modifications the hinging may be by a knife edge and a co-operating V-groove and the slot adjusting mechanism may comprise notched concentric discs secured to the ends of the selector bar, and rotatable within the head to engage an inward projection on one of the hinged parts of the head or by wedge members axially movable relatively to the head.
Patent GB-1326172-A (GB)
Title: Electric push-pull switch
IPC: H01H13/02
Filed: 1972-01-20
Abstract: 1326172 Inert switches; indicators for switches SWF - SPEZIALFABRIK FUR AUTOZUBEHOR GUSTAV RAU GmbH 20 Jan 1972 [21 Jan 1971] 2726/72 Heading H1N A push-pull switch comprises a housing 10 having an electrically conductive bush 17 in which a switch shaft 19 is displaceable by means of an actuator knob 25, the shaft being formed as a bulb holder for a lamp 23, a first connection 20 of said holder being connected via a conductor 15 to a contact 14 on said shaft for co-operation with a contact 11 located in the housing 10, and a second connection 21 of said holder being connected to a sliding-contact spring 22 which projects through an aperture in the shaft 19 to abut the inside wall surface of bush 17. As shown, the shaft 19 carries a contact 13 which bridges fixed contacts 11, 12 when the shaft 19 is pushed in. When shaft 19 is pulled out a circuit to the lamp 23 is established from contact 11, via contact 14 and conductor 15, and via sliding contact 22 to the bush 17, which has fixing nuts 18 thereon and is connected to one pole of the supply.
Patent GB-584899-A (GB)
Title: Improvements in trimming or pinking mechanism for fabrics and other fibrous materials
IPC: D05B37/08
Filed: 1945-02-05
Abstract: 584,899. Sewing-machines. SIGODA, V. J. Feb. 5, 1945, No. 2844. [Class 112] [Also in Group VIII] A machine for trimming or pinking the edges of fabrics &c. which is described in combination with a sewing-machine for synchronous operation with the feeding and stitch-forming mechanism but may be formed as an independent unit is constructed with an intermittent feed motion for the fabric, and with cutting- mechanism which acts while the fabric is stationary to excise small portions of the edge thereof by a cutting action which starts from the edge and terminates in the apex of the extension and is followed by a second action which starts at the apex and extends to the edge. A number of layers of fabric may be cut simultaneously. As shown in Figures 2 and 8 the cutter is arranged close to the presser foot 14 of a sewing-machine, and a fixed blade 50 formed with cutting edges 52, 53, Fig. 12 is arranged under flange 15 formed on the presser foot 14. A fabric guide 60 is also used. The blade 50 co-operates with a rotary cutter 31 formed with four cutters 37, Fig. 8 driven by worm gearing from the power shaft of the sewing-machine transmitted through an inclined shaft 24 mounted in an inclined casting 5 which is offset laterally of the machine. The cutter 31 is mounted on a fixed spindle 29 secured to the underside of the casting 5, the hub 33 of the cutter being connected to a wormwheel 34 freely mounted on the spindle 29 and being pressed axially by a spring 41 acting on a plate 40 fitted with anti-friction rollers bearing on the wheel 34. The cutters 37 are formed with one edge of triangular form corresponding to the cutting-edge 53, Fig. 12 and this first cuts the fabric from the outer edge inwards, the cutting being completed by a straight edge which cuts outwards along the edge 52. The blades can move inwards against the action of the spring 41 during the cutting operation, or alternatively the cutter 50 may be moved so as to be capable of motion against spring action during the cutting operation. In a modified form of cutter, separate curing-edges 62, 63, Fig. 14, are used to co-operate with the edges 53, 52, and the feed motion is amended to correspond.
Patent GB-469936-A (GB)
Title: Improvements in the manufacture and production of dyestuffs
IPC: C09B51/00
Filed: 1936-01-30
Abstract: Dyes are made by reacting dinitrobenzenes containing substituents which can be replaced by amino groups by reaction with amines and sulphonic or carboxylic groups, preferably in presence of acid binding agents, with amines of the formula <FORM:0469936/IV/1> in which R1 and R2 are hydrogen, alkyl, cycloalkyl or aralkyl radicles, X1 and X2 are hydrogen or any substituents not diminishing the basic character of the said amine, and Y1 and Y2 are hydrogen or any desired substituents, generally in aqueous or aqueous-alcoholic solutions.  Acid-binding agents specified are the hydroxides, formates, acetates or carbonates of the alkali or alkaline earth metals.  The products through-dye leather (yellow to brown shades) and wood, and dye wool and silk.  In examples: (1) 2.4-dinitro-1-chlorbenzene-6-sulphonic acid sodium salt is reacted with 1-dimethylamino-4-aminobenzene or its 3-sulphonic or thiosulphonic acid, 1-diethylamino-4-aminobenzene, 1-dihydroxyethylamino-4-aminobenzene, 1 - hydroxyethylbenzylamino-4-aminobenzene, 1 - hydroxyethyl - sulphobenzyl - amino - 4 - aminobenzene, 1 - hydroxyethylcyclohexylamino - 4 - aminobenzene or 1 - methylamino - 2 - methyl - 4 - aminobenzene; (2) 2.4 - dinitro - 1 - chlorbenzen-6 - carboxylic acid is reacted with 1-dimethylamino - 4 - aminobenzene - 3 - sulphonic or thiosulphonic acid; (3) 2.4-dinitro-1-methoxybenzene-6-carboxylic acid is reacted with 1 - dimethylamino - 4 - aminobenzene - 3-thiosulphonic acid; (4) 2.6-dinitro-1-chlorbenzene-4-sulphonic acid is reacted with 1-dimethylamino - 4 - aminobenzene - 3 - thiosulphonic acid (violet-brown shades on leather).  Reference has been directed by the Comptroller to Specification 453,509.
Patent GB-798295-A (GB)
Title: Improvements in or relating to obstetric beds
IPC: A61G13/00
Filed: 1955-02-01
Abstract: 798,295. Surgical tables. ELLIOTT, W. and ELLIOTTS LIVERPOOL Ltd. Jan. 4, 1956 [Feb. 1, 1955], No. 2901/55. Class 52(3) An obstetrical bed or table has a main portion 14 and separate foot portion 15 carried by pivoted links 23 on a slidable subframe 26, the links when the parts 14, 15 are aligned, being over their dead centre position and abutting against stops. On slightly withdrawing the sub-frame from its tubular guides 17 the foot portion can be swung inwards and downwards and slid inwards for stowage. The section 14 can be tilted by a screw jack 20 or like device and a removable back rest 22 and adjustable lithotomy poles 29 can be provided.
Patent GB-565095-A (GB)
Title: Improvements in preparation of carotene concentrates from natural source materials
Filed: 1943-02-24
Abstract: A carotene concentrate is obtained by subjecting an oil containing carotene to high vacuum unobstructed path distillation by causing it to pass by centrifugal force as a thin film over a heated rotating vaporizing surface, which is under high vacuum, and which is separated from the condensing surface by substantially unobstructed space.  In an example, Lese palm oil is thus distilled at .004 mm. pressure and fractions are collected from 150-255 DEG  C.  The richest fraction is saponified in an atmosphere of nitrogen and the unsaponified portion extracted with petroleum ether.  The solvent is removed and the residue crystallized from ethylformate to give crystalline carotene. Suitable stills are described in Specifications 482,883, 521,227, 524,390, 539,056 and 548,257, [all in Group III]. The heating surface may be heated to 175-325 DEG  C.
Patent GB-1034421-A (GB)
Title: Improvements in tube making machines
IPC: B21C37/12
Filed: 1962-01-26
Abstract: 1,034,421. Coiling helically jointed tubes; seaming. E. JENSEN. Jan. 18, 1963 [Jan. 26, 1962], No. 3130/62. Headings B3E and B3J. Apparatus for making helical lock seam tubing from metal strip includes a head having an internal surface defining the helical pitch of the path of travel of the strip, a pair of pinching rollers between which preformed edges of the strip are pinched into a helical lock seam when the strip has negotiated a single turn of the helix, a pair of push feed rollers to feed the strip to the head, a set of rollers between which the strip is drawn by the feed rollers to deform the edges of the strip, and a carriage or support for the feed and forming rollers adjustable about an axis intersecting the axes of the pinching rollers. Metal strip is pulled by a pair of driven feed rolls 4, 5 through rollers 8 which form a flange on one edge of the strip and a channel on the other edge. The strip is pushed by the rollers 4, 5, between upper and lower guide plates 21, 22 and between an edge guide bar, adjustable by a screw, and an edge roller, to a forming head 3 which coils the strip into helical form. The mating edge flange and channel are pinched together to form a lock seam by inner and outer rollers 7, 6. The inner roller 7 is carried by a bracket 20 backed by a clamping jaw. The outer roller 6 is carried by a fork 13 on a piston-rod 12 urged upwardly by pressure in a cylinder 11. The feed and forming rollers and the guide means are supported on a carriage 9 adjustable about the axis of the cylinder 11 and locked in its selected angular position by a clamping bolt 18. The head 3 may comprise a flexible steel band 23, Fig. 4 (not shown), bowed into a helix and fixed at the ends.
Patent GB-429167-A (GB)
Title: Improvements in or relating to tail skid shoes for air craft
IPC: B64C25/50
Filed: 1935-01-31
Abstract: 429,167. Aeroplane tail skids. AKT.- GES. DER EISEN-UND STAHLWERKE VORM. G. FISCHER, Schaffhouse, Switzerland. Jan. 31, 1935, No. 3191. Convention date, Jan. 31, 1934. Drawings to Specification. [Class 4] [See also Group XXII] A tail-skid shoe for aircraft is coated with a hard layer of white iron applied by an electric or autogenous welding process. The hardness of the layer may be increased by the addition thereto of an alloy constituent, e.g. chromium. As shown, the shoe is provided with a depending rib.
Patent GB-203617-A (GB)
Title: Improvements in track chain construction for tractors
IPC: B62D55/28
Filed: 1923-02-02
Abstract: 203,617. Bloxam, A. G., (Bear Tractor Corporation). Feb. 2, 1923. Endless-track vehicles. - Readilyassembled and disconnected endless tracks comprise pivoted links each formed of side plates 12 and a tread plate 13. The side plates have projecting bosses 14<1>, 14 for the reception of pivot pins 11, and the bosses of alternate links are arranged differently, those of the link 12 projecting inwardly and those of the next outwardly. Each side plate has a track rail 17 to provide a bearing on the sprocket, and a plate rail 18 formed with apertured protuberances 20, 21, 22 which register with openings 23, 24, 25 in the tread plates. Dowel pins 26, 27 for positioning the side plates on the tread plate pass through the openings 23, 25 and a bolt 30 passing through the openings 24, 21 secures each side plate to the tread plate. Ledges 31, 32, 33 are formed on three sides of the tread plate and the back 34 of each tread plate is formed so as to overlap the front side of the next plate. V-shaped growers the noses of which are directed rearwardly of the direction of motion when in contact with the ground are attached to the tread plate by the bolts 30. The noses of the grousers are cut away fo avoid pocketing air. In a modification, the tread plates are positioned on the side plates by indented protuberances, instead of by dowel pins.
Patent GB-1118492-A (GB)
Title: Electrohydraulic process
IPC: C02F1/48
Filed: 1966-01-26
Abstract: Micro-organisms are destroyed in a liquid medium such as water or sewage by a process comprising passing the unpurified liquid into an electrohydraulic chamber, charging a capacitor to a desired level of electric energy and initiating within the liquid at least one electro-hydraulic shock at a voltage less than 14 kilo-volts and a minimum energy of 50 joules per shock by discharging the capacitor. The capacitor may be discharged across a spark gap immersed in the liquid to be treated; alternatively, either a chamber divided by a diaphragm is used and the capacitor is dis-charged into liquid in one part of the chamber, the liquid to be purified being at the other side of the diaphragm, or the liquid to be treated is contained in a bottle or can which is immersed in the liquid being shocked.  If more than one type of micro-organism is present, the initial shock may be at a sufficiently high energy level to kill the most resistant organism, and subsequent shocks may be at a lower energy level.
Patent GB-432087-A (GB)
Title: Improvements in and relating to wood cross joints
IPC: E06B3/99
Filed: 1935-02-02
Abstract: 432,087. Carpenters' joints. NORRIS, Ltd., C. W., and GRUNNERT, J. F., Albert Road Saw Mills, Farnworth, near Bolton. Feb. 2, 1935, No. 3432. [Class 20 (ii)] Wood cross-joints for window and like frames are formed by slotting the continuous member 4 at its thickest portion to receive tongues on the ends of the cross abutting members 6, these tongues being adapted to overlap in the slot 5 of the continuous member, the joint being fixed by a pin 9 passing through the tongues. The abutting end portions of the non-continuous members are shaped to fit the sides of the continuous member.
Patent GB-162110-A (GB)
Title: Improvements in or relating to portmanteaux and the like
IPC: A45C7/00
Filed: 1920-02-04
Abstract: 162,110. Wells, E. V., and Wells, M. L. Feb. 4, 1920. Boxes formed of separate bodies combined side by side; lids.-A portmanteau is built up from two unit,portmanteaux A<1>, A<3> by removing the lid of one and the bottom of the other and fitting the remaining parts together; to permit this, snap fastenings a, a', a<3> are employed to the bodies, and the hinge of the removable lid is arranged so that the lid is removed by sliding it laterally.
Patent GB-967569-A (GB)
Title: Improvements in or relating to control circuits
IPC: H02M9/04
Filed: 1963-01-28
Abstract: 967,569. Charging and discharging capacitors. GENERAL DYNAMICS CORPORATION. Jan. 28, 1963 [Jan. 31, 1962], No. 3503/63. Heading H2H. A circuit for charging and discharging capacitors 38, 39, particularly for magnetic forming operations comprises a reversible motor M controlling a variac 28c giving approximately linear charge to the capacitors through a transformer 33, rectifier 41 and resistors 41, 42. At a determined rectifier output voltage, which is opposed to a reference voltage 63 a transistor 61 conducts, energizing a relay 29 de-energizing another relay 22 and hence transformer 33, also de-energizing a further relay 19 and a vacuum relay 32, a contact of which provides a discharge path for the capacitors 38, 39 through resistors 44, 46, the negative volt drop across which renders ignitrons 47, 48 conductive so that a work coil 50 receives the capacitor's energy. After a delay relay 31 will operate contacts 31a de-energizing relay 27 changing contacts 27c, 28b causing variac motor M to run back until limit switch 28b opens. To re-energize the circuit a push-button is closed, energizing a starting relay 22 through normally closed motor control relay contacts 27a and limit switch contacts 28a and discharge relay contacts 29a. Closure of contacts 22a energizes the variac 28c and locking relay 19 closing contacts 19a, 19b, 19c, 19a providing a holding circuit for relay 22, 19b energizing a motor control relay and a time delay relay 31, and 19c energizing vacuum relay 32 which opens contacts 32a. Closure of contacts 27c through limit switch contacts 28d energizes the variac motor and contacts 27a shunt contacts 19b through a slow-to-operate relay contacts 31a. U.S.A. Specification 2,976,907 is referred to.
Patent GB-195817-A (GB)
Title: Telephone signal device
IPC: G08B5/28
Filed: 1922-02-07
Abstract: 195,817. McKenna, T., (Dictograph Products Corporation). Feb. 7, 1922. Positively moved electromagnetic indicators or annunciators.-A visual indicator especially suitable for use in intercommunication telephone systems is provided with a latch for preventing its complete return to non-indicating position on the cessation of an unanswered call, its partial return opening the circuit of the audible calling signal and indicating to the called party that an unanswered call has been made. The invention is described as applied to a system in which each party's switch-board is provided with an indicator 8, Fig. 9, for each of the other subscribers, the actuation of any indicator closing a common buzzer circuit 20, 22. The indicator comprises a magnet 2, the pivoted armature 5 of which is provided with an arm 6 having its free end 8 bent into a slot in the support 1 opposite a window 4 in the switchboard face. The shutter 8 is normally held by gravity in its lowermost position in which none of the window is obscured. A two-armed latch 9 is pivoted on the frame 3, its lower arm 9b being heavier than the other arm 9<a> which is normally held against the outer face of the shutter 8. An answering key 10 associated with the indicator unit is also pivoted to the frame in a slot 11, its up and down movement being limited by two teeth such as 16. Two rollers 14 mounted on the base of the key control a spring-group 12, 13, 14, 17. In operation, when the party particular to the indicator shown calls, the magnet 2 is energized in a circuit including normallyclosed contacts 12, 13 and the armature 5 is attracted. Contacts 18a, 19 are thereby closed and close a common buzzer circuit, and the shutter 8 is raised to completely obscure the window 4. The raising of the shutter 8 permits the latch 9 to fall back into the position shown in the Figure in which the arm 9b rests upon the spring 17 while the arm 9d is brought beneath the shutter 8. If the called party answers, he raises the key 10 until the tooth 16 engages the frame 3, in which position the springs 12, 13 are separated and deenergize the magnet 2, thereby opening the buzzer circuit, and the springs 12, 15 are closed to complete the talking circuit, the end of the spring 12 being shaped to hold the key in this position. On the completion of conversation, when the key is restored, the tension of the spring 12 causes a roller 14 to lift the spring 17 sufficiently to raise the latch 9 and allow the shutter 8 to drop to its normal position behind the arm 9a. If the called party, however, is not present to answer the call, when the calling party hangs up and the magnet 2 relapses, the shutter .8 falls until it rests upon the latch-arm 9a. The buzzer circuit is thereby disconnected at the contacts 18a, 19 but the window 4 remains partially obscured by the shutter 8 to warn the called party that an unanswered call has been made, so that on his return he may call up the first calling party by raising the key 10 as previously described.
Patent GB-491649-A (GB)
Title: Improvements in or relating to vehicle registration number plates
IPC: G09F7/06
Filed: 1937-02-06
Abstract: 491,649. Vehicle number-plates. BLUEMEL BROS., Ltd., and BLUEMEL, F. W. Feb. 6, 1937, No. 3554. [Class 3 (ii)] A vehicle number-plate assembly comprises a backing plate, a plurality of digits, a plurality of spaced locating means adapted to space by the requisite distance any desired order of digits, each of said digits engaging the locating means at their upper and lower edges, and a member or members for securing the digits on the backing plate, such member or members covering the locating means from view when the number-plate is assembled. In the embodiment shown in Fig. 3, digits 11 are secured and located on a plate 10 by lugs 12 engaging in openings 16 formed in the inturned edges 15 of members 13 embracing the edges of the plate. Where the letters of the number plate are arranged in a row above the numerals as shown in Fig. 4, the upper and lower edges of the plate are provided with members 13 as above, and an additional strip 18 is provided having inturned edges 19, 21 formed with openings for receiving the lugs on the bottom of the letters and on the top of the numerals respectively. In a modification, Fig. 5, the lugs 12 engage in recesses 23 formed in strips 22 secured to the plate 10. In another embodiment, Fig. 7, lugs 26 on the digits engage in apertures 25 in the plate 10 and the digits are secured by channel members 13. Alternatively, lugs on the plate 10 engage in apertures formed in flanges at the top and bottom of the digits. Specification 466,113 is referred to.
Patent GB-957758-A (GB)
Title: Fast response fluid control valve
IPC: F16K17/10
Filed: 1962-01-31
Abstract: 957, 758. Fluid-pressure servomotor control systems. BRAKESHOE INTERNATIONAL S. A. Jan. 31, 1962 [April 21, 1961], No. 3611/62. Heading G3P. Pressure fluid at 22 passes restrictions 31, 70, 55 to chamber 45 behind piston 37 and, on reaching a given value and opening valve 64, 63 via piston 62, releases the chamber pressure and allows valve 73 to relieve pressure at 22 to exhaust 23, chamber 45 containing an elastic gas filled container 47 which prevents surging. 47 may be an elastic ball, a cellular material or a metal bellows.
Patent GB-138433-A (GB)
Title: Improvements in and connected with rotary suction and blowing apparatus, more particularly for vacuum cleaning
IPC: A47L5/34
Filed: 1919-02-14
Abstract: 138,433. Woodroffe, F. K. Feb. 14, 1919. Vacuum and pressure cleaning-apparatus.-Relates to portable or domestic pneumatic apparatus for cleaning or other purposes wherein a fan with its operating electric motor are employed and, in some cases a rotary brush which is driven from the motor, the apparatus being used for producing vacuum or pressure. The apparatus comprises the two portions 2, 10 readily movable in relation to, or detachable from, one another, the upper portion 2 containing the motor and fan and an air inlet or branch 4 and the discharge mouth 7, while the lower portion constitutes the base on which the upper portion is carried and hinged at 22 or otherwise movably connected. The rotary brush 11 is driven through speed-reducing gear and through clutch mechanism 20, 18, part of which is on or connected with the fan, and part on or connected with the mechanism in the base. For cleaning walls &c., the upper portion of the apparatus is raised about the hinge so that, the inlet to the fan casing being exposed, a nozzle may be attached thereto. For cleaning linoleum, wood floors, &c., a shallow padded base-casing is substituted for the wheeled lower portion. By attaching a pipe to the discharge mouth 7, air may be blown or forced upon the surfaces to be cleaned. When a plain base is employed, the inlet for the air used for blowing is protected by wire-gauze. A suitable handle 30 is provided.
Patent GB-109933-A (GB)
Title: Device for Preventing the Escape of Gas from Gas Generators.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: C10J3/30
Filed: 1917-03-14
Abstract: 109,933. Jackson, W. J. Mellersh-, (Stein et Cie, C. M.). March 14, 1917, Emission of hot gases through working apertures, preventing.-A device for preventing escape of gas' through the poking-hole of a gas producer by delivering a jet of air or other gas into or across the hole, is made portable so that it can be applied at any one of the poking-holes. The delivery nozzle is connected up to the air or gas supply by a flexible tube, and may be in the form of a ring 3, Fig. 1, with an annular orifice, or a flattened rozzle 3, Fig. 3, delivering a jet across the mouth of the hole.