baber/WOPTO huggingface dataset:
Patent GB-597962-A (GB)
Title: Improvements in and relating to latch bolt hold-backs
IPC: E05B63/18
Filed: 1945-07-17
Abstract: 597,962. Latches. TRIGGS, W. W. (Yale & Towne Manufacturing Co.). July 17, 1945, No. 18326. [Class 44] A spring-shot sliding latch-bolt is held in retracted position (as, for example, where a night-latch is used as an optional additional door fastening which can be put out of action. when desired) by a button-operated device biassed to release position by a spring and held in engagement against the action of said spring by co-operation of the device with the part of the bolt which it engages under action of the bolt-shooting spring. With this arrangement release is effected by giving the bolt a slight retractive movement to disengage the cooperating parts, whereupon the button-operated device is moved to release position by its spring; The bolt then shoots under the action of its spring when the handle is released. As shown the bolt 11 with tail-piece 25 slidably guided in a easing 10 is shot by spring 12 and retracted by handle-operated follower-arm 14 with a cam-pin 13 engaging a slot in the bolt tail as shown. The handle 15 is formed so as to be operable as a thumb-turn. The button 16, slidable in the front wall of the casing, is disposed away from the handle 15 and has riveted to its inner end a plate-spring 20 transversely disposed within the casing and having its ends anchored in notches. The spring is bowed to hold the button in its outermost position, Fig. 3. Also riveted on the button under spring 20 is a plate 19 having at its rear edge an upstanding lug bent to provide a rearwardly-directed hook-like part 23 adapted to engage a notch 26 in the forward edge of a lug 24 upstanding from and integral with the bolt tail. Fig. 3 shows the bolt in its normal released and operative position. If the bolt be retracted and the button then pushed in and held whilst the handle is released, notch 26 engages hook 23 under action of the spring 12 as in Fig. 5, the bolt being held retracted and the button-operated member held in engaged position. To effect release, the bolt is given a slight retractive movement by handle 15 to disengage notch 26 from part 23 whereupon the button is returned to release position by spring 20, and the bolt shoots when the handle is released so that the parts are restored to the normal condition, Fig. 3. A modification is described in which the button is slidable in a bore in the handle, is pressed outwards by a coiled spring, and the button-operated device is a plunger, the inner end of which enters the slot in the bolt tail when the bolt is retracted and the button pushed in. The rear edge of the slot engages in a lateral slot near the inner end of the slot engages in a lateral slot near the inner end of the plunger under action of the bolt-shooting spring to retain the plunger and button in engaged position.
Patent GB-1432601-A (GB)
Title: Process for treting textile materials
IPC: D06M13/02
Filed: 1973-04-17
Abstract: 1432601 Flame-proofing cellulose textile HOOKER CHEMICALS & PLASTICS CORP 17 April 1973 [17 April 1972] 18371/73 Heading DIP A method for imparting flame retardance to a cellulose-containing textile material (e.g. of cotton) comprises impregnating the material with an aqueous solution having a pH of 7 to 9 and containing 10 to 40 wt. % of tetrakis- (hydroxymethyl) phosphonium hydroxide, drying the impregnated material to a moisture content of 0 to 8% by weight and exposing the dried material to an atmosphere containing at least 50% by volume of gaseous NH3 in an enclosed chamber for 5 to 45 seconds to polymerise the phosphorous-containing compound in and on the textile material. After treatment with NH3 gas the material is preferably scoured or washed e.g. with an aqueous alkaline soap solution containing peroxide and then dried. The impregnating solution is preferably prepared by reaction of tetrakis(hydroxymethyl)phosphonium chloride with NaOH, the solution containing tris(hydroxymethyl)phosphine and the phosphonium hydroxide in equilibrium. In Examples cotton sheeting or tubular knitted material is treated with the aqueous phosphonium solution, dried at 200F and treated with NH3 gas at reaction times within the required range. Other cellulosic and non-cellusic fibres are specified.
Patent GB-112646-A (GB)
Title: Improvements in Door Operating Mechanism.
Inventor: TURNER WALTER VICTOR
IPC: E05F15/02
Filed: 1916-12-22
Abstract: 112,646. Turner, W. V., and Cady, W. M. Dec. 22, 1916 Operating doors pneumatically.-In a fluidpressure piston-and-cylinder mechanism for operating car and other doors, a reservoir is connected to the cylinder in such a manner that when the piston has moved through a portion of its power stroke the port leading to the reservoir is uncovered, thus allowing the fluid under pressure to expand into the reservoir so that the piston completes its stroke slowly and slamming of the doors is prevented. As shown, a double piston 7, 8, provided with a rack 10 operating a pinion 11 effecting the opening and closing of the doors, works in a cylinder 5, 6 connected by ports 22, 23 to the reservoirs 26, 27. Fluid is admitted to one or other of the ends of the cylinder by pipes 3, 4 controlled by a valve 2 operated by a handle 13, which may,also control a brake valve. On the return stroke of the piston, the fluid escapes from the reservoir 26 or 27 by a port 28 in the cylinder.
Patent GB-421648-A (GB)
Title: Improvements in and relating to exhaust silencers for internal combustion engines
IPC: F01N1/14
Filed: 1933-06-28
Abstract: 421,648. Windscreencleaners. TRICO PRODUCTS CORPORATION, 817, Washington Street, Buffalo, New York, U.S.A. June 28, 1933, No. 18389. Convention date, May 4. [Class 138 (i)] [See also Groups XXVII, XXVIII, and XXXVIII] Gases from the exhaust-pipe 10 of a motor vehicle pass through a chamber 21 into a Venturi tube 11, formed at the constriction 11<a> with openings 13, 14, into which air is drawn through a port 18 in a tube 40 surrounding the Venturi, the port 18 being connected by a pipe 17 and pipe 20 to a windscreen-wiper, and by a pipe 18<a> to the induction manifold.
Patent GB-289758-A (GB)
Title: Improvements in spark plugs for internal combustion engines
IPC: H01T13/24
Filed: 1927-07-11
Abstract: 289,758. Schlaich, H. April 30. 1927, [Convention date]. Thermostats.-The terminal 6 attached to a sparking plug casing is bimetallic; the outer strip consists of material known under the Registered Trade Mark " Invar," an alloy containing nickel 36 per cent, steel 64 per cent approximately. In the Specification as open to inspection under Sect. 91 (3) (a) this material is referred to under the Registered Trade Mark, " Invar." The inner strip consists of an alloy having the constituent proportions-carbon 0.50, manganese 0.70, silicon 0.75, chromium 8.00, nickel 22.00 copper 2.00 cobalt 1.00, and iron 64-05. This material has a substantially uniform. coefficient of expansion. Below 100‹ C. the coefficient of the nickel-steel alloy is very small; from 100‹ C. to 300‹ C. it rapidly increases, and above the latter temperature is substantially uniform and equal to that of the other component throughout the whole of its range. Hence the size of the spark gap reaches its maximum at about 300‹ C.
Patent GB-402015-A (GB)
Title: Traversing means for yarn-winding machines
IPC: B65H54/50
Filed: 1933-06-28
Abstract: 402,015. Traverse-arrangements for yarn-winding machines. McKEAN, J. O., 82, Court Street, Westfield, Massachusetts, U.S.A. June 28, 1933, No. 18456. Convention date, Jan. 27. [Class 120 (ii).] A rotary traverse means for yarn-winding machines is provided with long non- intersecting oppositely disposed helical grooves 6, 7 and short intermediate grooves 8, 9, 10 arranged as shown in the plane development in Fig. 5. The return ends 11, 12 of the grooves 6, 7 are shallow to permit the yarn to be delivered to the package with a minimum amount of lash and a sharp return. Otherwise all the grooves are substantially the same depth and each groove is flared at its leading end. The yarn passes from the return end 11 to the groove 8 and the groove 7 and thence from the return end 12 to the grooves 10, 9 to the groove 6.
Patent GB-1222725-A (GB)
Title: Improvements in vehicle splash guards or mudguards
Inventor: BLOMBERG GOETE EINAR ERLING
IPC: B62D25/18
Filed: 1968-04-19
Abstract: 1,222,725. Vehicle mudguards and mud flaps. G. E. E. BLOMBERG. 19 April, 1968 [20 April, 1967], No. 18536/68. Heading B7J. A tangential mud flap or peripheral mudguard for a vehicle wheel, comprises ridges 2 formed in the surface facing the wheel, the ridges 2 being transverse to the wheel axis, tapering from base to apex, and forming therebetween grooves or channels 4 each of which has a substantially U-shaped cross-section with the channel walls initially diverging away from the base of the grooves or channels 4 with a decreasing angle of incidence. The ridges 2 are slightly rounded at 5. It is stated that the formation of water mist is prevented by the mud flap or mudguard.
Patent GB-670411-A (GB)
Title: Improvements relating to the manufacture of glass envelopes for electric discharge devices
Inventor: COLBORNE RONALD HENRY
IPC: C03C27/08
Filed: 1946-06-20
Abstract: 670,411. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 1, 1947 [June 20, 1946], No. 18539/46. Class 39 (i). The neck of a cathode-ray tube having one end of the neck formed of a tubular glass part of relatively low coefficient of expansion and the other formed of a tubular glass part of relatively high coefficient of expansion for sealing to the pinch is formed by interposing between these parts at least one ring shaped part of glass having an intermediate coefficient of expansion, and simultaneously fusing together the axially facing edges of the parts in a single fusing operation. In an example the leads for connection to the electrodes are made from a Fe/Ni/Co alloy such as " Kovar " (Registered Trade Mark) and sealed into a pinch of soft glass such as Chance's G.S.3, the envelope being of hard glass such as " Pyrex" " (Registered Trade Mark), and the pinch sealed to a tubular part of sealing glass such as G.S.3 with two intermediate glasses, namely B.T.H. C11 and " Intasil " (Registered Trade Mark), arranged between the sealing glass and the envelope. These borosilicate glasses have coefficients of expansion approximately as follows: Pyrex 33-35Î10<SP>-7</SP>, Intasil 36-40x10<SP>-7</SP>, C11 43-47x10<SP>-7</SP>, and G.S.3 47-49 x 10<SP>-7</SP>. The envelope is assembled on the headstock of a lathe, and a mandrel with the intermediate glass parts and the, sealing glass part, of corresponding diameter to the envelope neck, assembled in correct order is inserted in the tailstock. The mandrel, which may be fluted or relieved, may consist of hard carbon, heat-resisting steel, or "Meehanite" (Registered Trade Mark), and preferably does not rotate with the tailstock. The glass rings are now brought into contact with one another, and with the edge of the envelope neck and fused together, the flame being directed against Intasil and Pyrex, and the shape maintained by internal pressure and external tooling. The pinch may then be sealed to the sealing glass part. Specification 670,430 is referred to.
Patent GB-1241252-A (GB)
Title: Improvements in or relating to adhesion of elastomeric shoe soling materials
Inventor: PETTIT DONALD
IPC: A43B13/32
Filed: 1969-04-10
Abstract: 1,241,252. Boots &c. SHOE & ALLIED TRADES RESEARCH ASSOCIATION. 17 April, 1970 [10 April, 1969], No. 18588/69. Heading A3B. Elastomeric soling material, e.g. natural rubber, styrene-butadiene rubber or nitrile rubber, is subjected to a surface holagenation treatment before being bonded to a shoe upper and/or other shoe component using a hot-melt polyester or polyurethane adhesive. The surface halogenation treatment may be bromination carried out by wiping the material with a solution of bromine in carbon tetrachloride or chlorination carried out by use of an aqueous solution of sodium hypochlorite and hydrochloric acid, or by exposure to chlorine vapour. The halogenation treatment may be applied to sheets of soling material from which the soles are cut or or may be applied to pre-cut sole units. The soles may be attached to the uppers directly after the adhesive is applied to the soles or the adhesive may be allowed to cool and is reactivated by heat before being applied to the upper. In this latter case the adhesive may be applied to sheets of soling maternal from which the soles are cut. The upper material to which the sole is bonded may be leather, P.V.C. or poromeric material.
Patent GB-676531-A (GB)
Title: Improvements in cartons
IPC: B65D5/06
Filed: 1949-07-15
Abstract: 676,531. Cartons. SATONA. Ltd.. and GAUNT. T. N. July 10, 1950 [July 15, 1949], No. 18722/49. Class 18 In a tubular carton of the kind having a continuous and closing flange, parts 4b, 5b of which fold inwardly between parts 2b, 3b, the overlapping upper portions 2a-5a being sealed together to close the carton, flange portions 4a, 5a are less in height than portions 2a, 3a, whereby the latter are sealed together over the tops of the former. Thermoplastic adhesive may be used, and a coating of wax may be applied to the carton after the adhesive. Specification 516,527 is referred to.
Patent GB-958888-A (GB)
Title: Improvements in or relating to a constant velocity universal joint
IPC: F16D3/223
Filed: 1963-05-10
Abstract: 958,888. Universal joints. DANA CORPORATION. May 10, 1963 [May 17, 1962], No. 18724/63. Heading F2U. In a constant-velocity universal joint in which inner 14 and outer 12 members are coupled by torque transmitting means 26 engaging paired grooves in the members, the axes of the grooves are arcuate with respect to the member axes. The grooves 16, 18 in the outer member, and 20, 22 in the inner member, are also inclined to the member axes, co-operating grooves in inner and outer members being mirror images of each other and adjacent grooves of one member having opposite inclinations to the member axes to produce equal and opposite axial thrusts on the balls 26 to maintain them in conjunction with the ball cage 28 on the median plane of the joint. The arcuate grooves which may be straight or helical allow relative axial movement and large angular deflections of the joint members.
Patent GB-868225-A (GB)
Title: A safety chucking device for multiple-spindle automatic lathes
Inventor: RUZICKA HYNEK
IPC: B23B31/00
Filed: 1959-06-02
Abstract: 868,225. Automatic-lathe details. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK. June 2, 1959, No. 18726/59. Class 83 (3). A safety warning device for the chuckoperating mechanism of multiple-spindle automatic-lathes comprises a fork 13 for chuckoperation made of fibre or other insulating material and provided with a metal insert 16 which, when the side faces of the fork wear, contacts the metal of the operating sleeve 12 and completes an electrical circuit through a warning lamp 22 or an acoustical device. The sleeve 12 has an internal cam surface which at the part v operates the levers 4 sufficiently to close the spindle chuck (not shown) through the sleeve 9. When wear occurs on the faces of the operating fork 13 the chuck is insufficiently closed and the warning device is arranged to operate before the wear becomes dangerous.
Patent GB-1067374-A (GB)
Title: Endotoxin fractions and method for producing same
Inventor: BERGER FRANK MILAN
IPC: A61K39/02
Filed: 1964-05-06
Abstract: A method of producing bacterial endotoxin fractions capable of conferring protection to warm-blooded animals against infectious agents comprises mixing bacterial cells containing endotoxin with water to form a suspension, mixing the latter with a water-insoluble organic liquid and an emulsifying agent to form an emulsion, maintaining the mixture in an emulsified state for 1 to 2 hours, separating the aqueous phase from the non-aqueous phase, dialysing the aqueous phase against water employing a dialyzing membrane, whereby inorganic ions and organic materials having molecular weights below 200,000 present in the aqueous phase are caused to pass through the membrane while the organic materials having molecular weights of at least 200,000 are retained in the aqueous phase, concentrating the aqueous phase by removal of water therefrom under sub-atmospheric pressure to leave a concentrate which contains a water-soluble endotoxin fraction, and adding to the concentrate a precipitating agent to precipitate endotoxin fractions, the precipitating agent being a liquid in which the endotoxin fractions are insoluble.  The bacterial cells are preferably of the gram-negative type.  A suitable water-insoluble organic liquid is diethyl ether and a suitable precipitating agent is acetone.  The emulsifying agent may be polysorbate 80 and the dialysing membrane may be of regenerated cellulose having an average pore size of 4.8 mm .
Patent GB-495559-A (GB)
Title: Machine for pressing or crushing berries
IPC: A47J19/02
Filed: 1938-06-24
Abstract: 495,559. Pressing berries. ULLI, R. June 24, 1938, No. 18760. [Class 28 (ii)] A press for berries comprising a pressure-plate 7 screwed on a threaded spindle 3 secured to the base of the container 1, is characterized in that the space between the bottom of the container and the pressure-plate widens towards the periphery. The base 2 is arched and is of maximum thickness at the centre where the spindle 3 is inserted and secured by a washer and nut 4. The plate 7 is of conical form and is perforated to permit the juice to rise above the plate. The nut 9 is rigidly secured to the plate 7 and is provided with grooves 10 in which the sheet metal handle 11 is inserted. The handle is welded or riveted to the plate 7. A stop 12 on the spindle 3 limits the downward movement of the plate. Ribs 5 on the base prevent the .material from rotating and external ribs 6 help the hand grip on the container. The rim of the container is flared to assist in centring the plate 7.
Patent GB-352698-A (GB)
Title: Improvements in or relating to levels
IPC: G01C9/10
Filed: 1930-06-21
Abstract: 352,698. Levels. WATTS & SON, Ltd., E. R. and WESTON, S., 123, Camberwell Road, London. June 21, 1930, No. 18937. [Class 97 (ii).] A liquid-filled level of the rolling ball or globule type has an expansion chamber joined to the body of the level by means of a capillary tube or constriction so that all air or vapour may be excluded from the main body of the level. As shown in Fig. III, the spherical expansion chamber a is joined by the capillary b to a level c containing a ball d rolling in the liquid e. Fig. II shows a level comprising a flattened chamber. A drop of mercury may replace the ball. The mobility of the ball may be controlled by using liquids of different viscosities.
Patent GB-1358761-A (GB)
Title: Linear electric motor
IPC: H02P25/06
Filed: 1971-06-04
Abstract: 1358761 Linear motors; control of A.C. motors TOKYO SHIBAURA ELECTRIC CO Ltd 4 June 1971 [11 June 1970] 18969/71 Headings H2A and H2J [Also in Division H3] In a linear synchronous motor comprising a reaction rail 35, Fig. 1, having alternate north and south poles co-operating with a polyphase wound armature 11 which is excited selectively and periodically by a static commutator 15 controlled by signals from a detector 36 which senses the relative positions of the armature and reaction rail, the detector is connected to the armature windings 12, 13, 14 so as to be responsive to back e.m.f. induced therein As shown, the commutator 15 comprises a thyristor inverter bridge supplied with D.C. from a thyristor rectifier bridge 25. The detector 36 consists of six photo-diodes (38-43), Fig. 2 (not shown) connected as a three phase rectifier bridge the light output of which is directed onto a corresponding number of photo-transistors and the output signals from these are applied to the gate control 37 of the commutator 15. Alternatively the photo-diodes may each be connected in series with a resistor and arranged as three pairs of oppositely poled parallel circuits connected in delta, Fig. 4 (not shown), the apexes of the delta being connected to the armature windings. In a further form of detector, the photo-diodes are replaced by a plurality of transformers one of which is shown at 58 in Fig. 5. The transformer has a primary winding 59 energized from a high frequency oscillator 62 and a secondary winding 60 connected to terminals 67, 68 of the armature winding and having a serially connected diode 64 and a parallel connected diode 65. A tertiary winding 61 connected to the gate 37 is also provided and high frequency signals from oscillator 62 only appear on winding 61 during the half-cycles of back e.m.f. when terminal 67 is negative serial on the alternate half-cycles diode 65 short circuits winding 60. Diode 65 may be replaced by a transistor or a thyristor, Figs. 6 and 7 (not shown). Speed control of the motor can be effected by varying the D.C. voltage from rectifier 25 by phase control of the gating signals applied thereto and regenerative braking effected by operating the commutator 15 as a rectifier and the rectifier 25 as an inverter.
Patent GB-316742-A (GB)
Title: Improvements in weighing scales
IPC: G01G23/18
Filed: 1928-06-30
Abstract: 316,742. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent envan Andere Werktuigen). June 30, 1928. Pendulum-weight apparatus ; casings.-Relates to automatic or semi-automatic weighing scales of the type in which one or more pans rest on weighing mechanism contained in a box-like base casing which encloses and extends over the weighing mechanism, and in which a separate fan-shaped, or triangular-shaped, indicator, casing contains an indicator pointer and load-counterbalancing device. According to the invention, the fan-shaped or triangular-shaped indicator casing is mounted on one or more uprights so constituted and arranged that a clear view is afforded of the weigh pan or pans from the opposite sides of the scale at which the indicator can be read, and the pan or pans is or are arranged close up against the upright or uprights to provide a compact construction of scale. As applied to the semi-automatic scale shown in Fig. 1, the indicating mechanism is contained in a triangular casing 7 supported upon the base housing 2 by means of hollow uprights 5, 6. The pendulous resistant 19 is coupled to the weighing mechanism within the base by a connecting member 20 passing through the upright 6. Figs. 4 and 7 show arrangements of automatic machine wherein -the indicator casing is supported by two uprights and one upright respectively. The indicator casing, shown in Fig. 7 may be turnably mounted at the point 46 or 47. In the form shown in Fig. 6, the weights pan 3 is situated between the uprights, which may be located midway between the sides of the base or nearer to one side than the other.