baber/WOPTO huggingface dataset:
Patent GB-1168572-A (GB)
Title: New Tetrazapentacene Dyestuffs, their manufacture and use
IPC: C09B17/06
Filed: 1968-02-08
Abstract: 1,168,572. Tetrazapentacene dyestuffs. CIBA Ltd. 8 Feb., 1968 [28 Feb., 1967], No. 6257/68. Heading C4P. [Also in Division C2] The invention comprises compounds of the formula where R is an ortho-arylene radical containing a sulphone, sulphonic acid ester or sulphonamide group, Y 1  and Y 2  are halogen or an acylamino group and X is an optionally substituted aryl, aralkyl, cycloalkyl or alkyl group. The compounds are prepared by reacting a 2,3,5,6-tetrahalo-1,4-benzoquinone or a 2,5- dihalo - 3,6 - diacylamino - 1,4 - benzoquinone with a compound of the formula
Patent GB-309682-A (GB)
Title: Improvements in doorstops or holders
IPC: E05C17/54
Filed: 1928-02-29
Abstract: 309,682. Russell, M. A. Feb. 29, 1928. Dovr wedges. - For holding a door in an open position by a wedge that is placed on the floor to engage the under edge of the door the wedge is provided with a handle B secured to the thick side of the wedge A. Specifications 20652/98; 141,907, [Class 89 (ii), Hooks &c.], and 194,965 are referred to.
Patent GB-865875-A (GB)
Title: A method of and device for the manufacture of needle cylinders for circular knitting machines
IPC: D04B15/14
Filed: 1959-02-24
Abstract: 865,875. Knitting-machines. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. Feb. 24, 1959 [Feb. 24, 1958], No. 6338/59. Class 74 (2). [Also in Group XXII] A method of making needle cylinders, for circular knitting machines, provided with ribs, inserted into longitudinal grooves in the needle cylinder, for laterally guiding the needles, is characterized in that the ribs are secured at their ends to the cylinder by spreading out the material of the cylinder. Steel ribs 1, formed at their ends with triangular recesses 8, 8<SP>1</SP> are positioned in longitudinal grooves 2 milled in a needle cylinder 3 and the whole assembly is fitted over a boss 15 of a lower punch 13, the lower end face 4 of the cylinder 3 seating on a ring 18, of half the triangular section of the recess 8, formed on the punch 13. An upper punch 14 is then moved down, guided by a boss 16 sliding into a bore of the lower punch 13, so that a half-triangular sectioned ring 19 thereon engages the upper end face 5 of the cylinder 3. Continued movement of the punch 14 causes the rings 18 and 19 to penetrate the end faces 4, 5 of the cylinder 3 to cause the material thereof to spread laterally at 24 over the inner sides of the recesses 8, 8<SP>1</SP> in the ribs 1, Fig. 7, thus securing the ribs 1 in the grooves 2. The recesses 8, 81 may be of semi-circular section.
Patent GB-1175862-A (GB)
Title: Optical slide projector
Inventor: BIDEAU MAX
IPC: G03B23/04
Filed: 1967-02-09
Abstract: 1,175,862. Slide projector. EASTMAN KODAK CO. Feb.9, 1967 [Feb. 9, 1966], No.6354/67. Heading G2J. A slide projector for use with slides of varying thickness comprises a slide changing member slideable in a channel for positioning slides in and withdrawing slides from the gate, said member having a means for engaging the slide to be projected and urging it towards the gate, resilient means in the channel for urging the slide into contact with the member and for preventing the return of the slide on retraction of the member, and means for preventing subsequent slides from being frictionally drawn towards the gate with the slide to be projected. In the detail shown in Fig. 3, the slide engaging means 11 is an inverted truncated cone-shaped washer which engages the bottom slide of a stack in the magazine 3. The channel contains a horizontal H-shaped resilient member (10, Fig.2, not shown), which urges the slide against the slidechanging member 6 as it moves towards the gate 2. The slide is positioned in the gate by stops, blade springs 2a and the ends (10b) of the H-shaped member, which ends, prevent the slide's return on the withdrawal of the member 6. On re-insertion of the member 6 the projected slide is engaged by blade springs on the reverse side of the member 6 such that on subsequent withdrawal thereof, the slide is withdrawn and placed in a store magazine axially aligned with the magazine 3. Subsequent slides are prevented from moving with the slide to be projected by a spring member 7a.
Patent GB-724961-A (GB)
Title: Improvements in or relating to reflecting materials, and methods of producing same
IPC: C25D11/18
Filed: 1953-03-09
Abstract: 724,961. Reflex reflectors. DIJK, E. W. VAN. March 9, 1953, No. 6412/53. Class 97 (1). A reflex reflector comprises anodized aluminium part covered on one surface with glass globules bonded thereto by lacquer. The foil may be polished electrically or chemically prior to anodizing and a protective coating of lacquer may be added after the globules have been secured. Colouring matter may be introduced into the pores of the anodic layer, into the lacquer or into the glass globules.
Patent GB-565760-A (GB)
Title: Improved mirror outfit for shaving, make-up and other purposes
IPC: A45D42/16
Filed: 1943-04-21
Abstract: 565,760. Mirrors. ARMITAGE, L. R. April 21, 1943, No. 6422. [Class 52 (iv)] A mirror m adapted to be folded into a box or casing a containing a lamp b screened from the observer but adapted to illuminate by reflection from the walls of the casing is adjustably pivoted at l to a slotted frame h pivoted by lugs g to the casing. A hinged lid part d of the casing may have keyhole slots for hanging the casing from a wall &c. The casing may accommodate an electric shaver and other articles.
Patent GB-115625-A (GB)
Title: Improvements in Matrices for use in Stopping Teeth and Repairing Artificial Teeth.
Inventor: ZURBRIGG DANIEL ANTON
IPC: A61C5/85
Filed: 1918-04-16
Abstract: 115,625. Zurbrigg, D. A. May 7, 1917, [Convention date]. Teeth, artificial; teeth, stopping.-Dental matrices for use in moulding a cement tooth facing on the metal part of a bridge or other backing whilst in position in the mouth, or for use in filling a tooth cavity, consists of a tooth-shaped depression moulded in a strip of sheet celluloid or like relatively stiff material. In the form shown, a sheet 2 of celluloid is formed with a series of matrices 1 from which one may be selected, trimmed as shown in Fig. 7 to form a finger tab D, filled with cement as shown in Fig. 5, and pressed in position against the metal backing as shown in Fig. 1. A backing strip F, Fig. 1, may be held in position under the bridge while the cement is being applied. Specification 115,626 is referred to.
Patent GB-783496-A (GB)
Title: Improvements in or relating to inflators for life-jackets and the like
Inventor: SPIDY ALEXANDER RONALD
IPC: B63C9/18
Filed: 1955-03-04
Abstract: 783,496. Lifejackets. KIDDE CO., Ltd., W. March 1, 1956 [March 4, 1955], No. 6471/55. Class 77 An inflator comprising a gas capsule 1 and release mechanism 2 as described in Specification 783,497 [Group XXVIII], is secured to a lifejacket 15 through the intermediary of a connector 9 clamped to the jacket and in rotatable connection with the inflator. For this purpose the inflator has a stepped recess 6 into which the connector slidably fits. It is retained therein by a pin 8 which is thrust into a bore drilled in the inflator body such that it communicates with the recess so that the pin when in place presents a protuberance in the recess for engagement with a groove 12 formed in the connector. A gas-sealing ring 11 is provided between connector and recess and a non- return valve 10 is located in the connector.
Patent GB-213248-A (GB)
Title: Improvements in spring power operated cycles
IPC: B62M1/10
Filed: 1924-03-14
Abstract: 213,248. Werner, E. March 19, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Power-storing mechanism; treadle mechanism. -A velocipede is driven by treadles acting on a spring drum connected to the road wheel through variable-speed friction gear. Treadles 11 drive the shaft 1 of the spring drum 2 through oneway clutches 14, so as to tension a spring contained in the drum. The drum drives a disc 16 against which is pressed a roller 17 movable along its shaft so as to transmit various gear ratios to the chain driving the rear wheel. The shaft 18 of the roller is carried in slidable spring-controlled bearings which can be moved to disengage the disc and the roller by means of a cable 29. The roller is moved along its shaft by a handle 22 and a cable 21. A cross-shaft 35 driven from the roller 16 through skew gearing carries a governor 37 and a brake 33, the latter being applied by movement of the cable 29, so that when the friction gear is disengaged the spring drum is held by the brake. The spring drum may drive the rear wheel directly, the friction gearing being omitted.
Patent GB-752122-A (GB)
Title: Disproportionation of chlorosilanes employing cyanamides as catalysts
IPC: C07F7/12
Filed: 1954-03-08
Abstract: A chlorosilane or a hydrocarbon-substituted chlorosilane containing at least one silicon-bonded h hydrogen atom is disproportionated by contacting with an aliphatic cyanamide which may be activated with a metallic halide.  Specified cyanamides are dimethyl, diethyl, diisopropyl and diallyl cyanamides.  The preferred metal halides are of the Friedel-Crafts type, e.g. the fluorides and chlorides of boron, titanium, aluminium, zinc, tin and iron.  The cyanamides may also be activated by heating, preferably refluxing, with a chlorosilane and distilling off the low-boiling products, leaving a high-boiling mixture of cyanamide and chlorosilane.  Any chlorosilane, including trichlorosilane, alkyl di- and trichlorosilanes and aryl trichlorosilanes, may be used in this activation.  The disproportionating reactions are effected below 150 DEG  C., preferably by refluxing with removal of the lower boiling chlorosilane.  Reaction may also be effected in an autoclave or by passing the chlorosilane vapour over a bed of catalyst.  Examples describe the disproportionation of methyl-, ethyl- and vinyl-dichlorosilane.ALSO:A chlorosilane containing at least one silicon bonded hydrogen atom is disproportionated by contacting with a catalyst comprising an aliphatic cyanamide which may be activated with a metallic halide.  Specified cyanamides are dimethyl, diethyl, di-isopropyl and diallyl cyanamides.  The preferred metal halides are of the Friedel-Crafts type, e.g. the fluorides and chlorides of boron, titanium, aluminium, zinc, tin and iron.  The cyanamide may also be activated by heating, preferably refluxing, with a chlorosilane and distilling off the low-boiling products, leaving a high-boiling mixture of cyanamide and chlorosilane.  Any chlorosilane, including trichlorosilane, alkyl diand tri-chlorosilanes and aryltrichlorosilanes, may be used in this activation.  The disproportionating reactions are effected below 150 DEG C., preferably by refluxing with removal of the lower boiling chlorosilane.  Reaction may also be effected in an autoclave or by passing the chlorosilane over a bed of the catalyst.  Examples describe the disproportionation of trichlorosilane.
Patent GB-899428-A (GB)
Title: Improvements in processes for the manufacture of doubled yarns
IPC: D01H1/00
Filed: 1959-02-26
Abstract: 899,428. Spinning yarns. HAMEL PROJEKTIERUNGS-UND VERWALTUNGS A.G. Feb. 26, 1959 [May 22, 1958], No. 6644/59. Class 120(3) A multiple yarn, e.g. of vegetable or animal fibres, is produced in two separate stages of doubling and twisting viz. (a) withdrawing single yarns from packages, e.g. conical crosswound bobbins mounted in a creel, and doubling them, e.g. on a ring twisting frame with a low twist of about 30 turns per metre at a speed of about 400 metres per minute and winding into a package, e.g. a flanged bobbin and (b) withdrawing the doubled yarn from the latter package, imparting a high twist of up to 1,000 turns per metre, e.g. on an uptwisting flyer frame, again at a speed of about 400 metres per minute, and winding.
Patent GB-1298512-A (GB)
Title: Optical method and apparatus for measuring the linear dimension of an object
Inventor: VOIGTLAENDER-TETZNER GERHARD
IPC: G01B11/02
Filed: 1970-02-11
Abstract: 1298512 Photo-electric measurement EXATEST MESSTECHNIK GmbH 11 Feb 1970 [25 Feb 1969] 6647/70 Heading G1A [Also in Division G4] Apparatus for measuring the dimension of an object includes two polygonal mirrors 10,12 (Fig.2) a distance d apart rotating about a common axis to scan the object 16, pulse width signals p 1 , p 3  Fig.4 (not shown) from detectors 18,20 representing the dimension of the object being processed to compute p1 / p1-p1Àp3 which is proportional to the required dimension and independent of the distance of the object from the mirrors. In one embodiment as the object is scanned gratings 34, 36 are also scanned to produce pulses from detectors 44,46 which are fed together with the pulse width signals to AND gates (60, 62) Fig.3 (not shown). The pulse output of one AND gate is fed to a multiplier circuit 68 to form 100 p 1 , an exclusive OR gate (66) to which is fed the output of an AND gate (64) receiving the signals p 1  and p 3  forming the required divisor pi - p 1 .p 3 . This is divided into the output of the multiplier by repeated subtraction to form 100p / p1 - p1Àp3À The result may be displayed. In a   modification a single grating is used Fig. 5 (not shown). Alternatively the apparatus may operate in an analog manner by feeding the pulse width signals to an AND gate to form p 1 .p 3 , one of the signals p 1  together with the AND gate output being fed to an exclusive OR gate to form p 1  - p 1 .p 3  which is divided into one of a pulse width signals p 1 . The apparatus may also be used for measuring the diameter of a wire Fig. 6 in which case pulse (α 2  - α 1 ) and (B 2  -B 1 ) representing the time to scan the wire by the two mirrors are differentiated and fed to a bistable to form aspect (α 1 -# 1 ) which is divided into one of the pulses (α 2 -α 1 ) to give a signal (α 2 -α 1 )/(α 1 -# 1 ) which is proportional to the required diameter.
Patent GB-799414-A (GB)
Title: Improvements in or relating to tubing
IPC: B21C37/30
Filed: 1956-03-03
Abstract: 799,414. Tube expanding. ARMSTRONG PATENTS CO., Ltd., and ARMSTRONG, F. G. G. April 11, 1957 [March 3, 1956], No. 6747/56. Class 83 (4). A method of concurrently straightening and sizing tubing comprises holding a length of said tubing rigidly only at or adjacent to one end thereof and forcing a ball through said length of tubing from said end to the other end thereof. A long length of tubing 3 is held at one end 3b in a collar 6, the other end 3a being free, while a tungsten carbide ball 2, of a diameter slightly larger than the internal diameter of the tubing, is pushed therethrough from the fixed end by a ram 4. The ball 2 may alternatively be forced through the tubing by hydraulic pressure of the order of 1,000 lb. per square inch, the tubing forming part of an oil circulation circuit actuated by a pump. The fixed end of the tubing may be in threaded engagement with its support or be secured therein by expansion. The sized and straightened tube may be cut into lengths.
Patent GB-159829-A (GB)
Title: Set of cylindrical end gauges
Filed: 1921-03-02
Abstract: 159,829. Zeiss, C. '[Firm of]. March 4, 1920, [Convention date]. Linear-dimension gauges. - Cylindrical end gauges of the type provided with surrounding holders have the holders formed approximately equal to the gauge in length formed at one end to receive and at the other to enter similar holders of other end gauges, so that an end gauge corresponding to the total length of several of a set may be built up. The end gauge a ha.s rounded ends and is enclosed by a sleeve b provided at the ends with parts c, d having external and internal screws c<1>, d<1> respectively. A spring e surrounds the gauge a abutting at one end against a shoulder c<3> on the part c and at the other against a pin f passed through the gauge a, the ends of the pin working in slots g of the part c. In the form shown one end of the combination takes a micrometer h which, when screwed on, moves all the gauges to a slight extent against the influence of other springs. Specification 23181/00 is referred to.
Patent GB-904984-A (GB)
Title: New butenolides
Inventor: FERRARI GIORGIO
IPC: C07D307/58
Filed: 1961-02-24
Abstract: The invention comprises a  - acetyl - b  - (3-hydroxy - 4 - methoxy-phenyl)-D a ,b -butenolide and a -acetyl-b -(3-methoxy-4-hydroxy-phenyl)-D a ,b -butenolide of the formula:- <FORM:0904984/IV (b)/1> (in which one of R and R1 is a hydroxy group and the other is a methoxy group) and a process for their preparation by condensing an R- and R1-substituted o -hydroxyacetophenone with an acetoacetic ester in the presence of, as catalyst, a cation-exchange resin in the acid form, and thereafter ring closing the resulting acetoacetate by treatment with a strong base in an inert solvent. Detailed examples are given.ALSO:Pharmaceutical compositions having a diuretic action comprise a -acetyl-b -(3-methoxy-4-hydroxyphenyl) - D a ,b  - butenolide and/or a -acetyl - b  - (3 - hydroxy - 4 - methoxyphenyl)-D a ,b -butenolide together with a carrier. The compositions may take the form of tablets or capsules or suppositories, and may incorporate other active ingredients such as a diuretic benzothiadiazine or a Rauwolfia alkaloid, e.g. reserpine. Examples III and IV detail the preparation of tablets and suppositories containing a -acetyl - b  - (3 - methoxy - 4 - hydroxyphenyl)- D a ,b -butenolide.
Patent GB-1170282-A (GB)
Title: Gloves.
Inventor: BERRY ALBERT THOMAS FRANK
IPC: A41D19/00
Filed: 1966-02-17
Abstract: 1,170,282. Dip moulding. JAMES NORTH & SONS Ltd. 16 May, 1967 [17 Feb., 1966], No. 6913/66. Heading B5A. [Also in Division A3] A glove or mitten formed from natural or synthetic rubber latex, or plastics material such as P.V.C. is formed with longitudinal passageways 12 extending at least to the roots of the fingers and roughened surfaces 18 on the fronts of the finger portions. The passageways may be formed by corrugating the glove material or by thinner portions 4 alternating with thicker portions in the material. The glove &c. may be made by dip or other moulding, casting, vacuum forming or heat-sealing.
Patent GB-697125-A (GB)
Title: Improvements relating to forging presses
IPC: B30B15/14
Filed: 1951-03-27
Abstract: 697,125. Forging-machines. MASSEY, Ltd., B. & S., and FOSTER, J. Feb. 20, 1952 [March 27, 1951], No. 7051/51. Addition to 648,588. Drawings to Specification. Class 83 (iv). Control gear for the eccentric-driven ram of the forging-machine of the parent Specification is provided with means for automatically operating the ram for a preset number of strokes. The part of the electrical circuit of the parent Specification for controlling singlestroke operation is modified to include a capacitance-resistance, or neon lamp, time delay device brought in circuit by a pedal and set off by the cam controlling single strokes. The driving clutch is automatically released and the brake automatically applied after a time sufficient for one or more additional strokes of the ram. The number of strokes may be preset by a selector switch.
Patent GB-644829-A (GB)
Title: Curing polymeric materials
IPC: C08L75/06
Filed: 1948-03-08
Abstract: Chloroprene polymers and interpolymers are cured in admixture with an organic polyisocyanate-modified polyester, for example, by heating with magnesium oxide or zinc oxide.  Specified as starting materials are glycols: ethylene, 1 : 2 - propylene, diethylene, trimethylene, pentamethylene, hexamethylene, decamethylene, and dodecamethylene glycols 1 : 12-octadecanediol, and pentaglycol; carboxylic acids: malonic, succinic, glutaric, adipic, b -methylapidic, pimeleic, suberic, azelaic, sebacic, undecanedioic, brassylic, isophthalic, terephthalic, hexahydroterephthalic, p-phenylene diacetic acids, and acetone dicarboxylic acid; polyisocyanates: ethylene, tri-methylene, tetramethylene, hexamethylene, decamethylene, p-phenylene, m-phenylene, and naphthalene di-isocyanates, benzene 1 : 3 : 5-, toluene 2 : 4 : 6-, ethylbenzene 2 : 4 : 6-, triphenylmethane 4 : 41 : 411 -, and diphenyl-2 : 4 : 41-tri-isocyanates.  Preferably the modified polyester has an intrinsic viscosity in chloroform solution of more than 0.6. The chloroprene polymer and modified polyester may be admixed either by milling or in solution in chloroform, carbon tetrachloride, trichlorethylene, acetone, benzene, or toluene, or the unmodified polyester may be admixed with the polychloroprene and then reacted with the polyisocyanate.  Before curing there may be mixed with the compositions carbon black, iron oxides, clay, asbestos, blanc fixe, lithopone, pigments, plasticizers, e.g. tricresyl phosphate, dibutyl phthalate, butyl phthalyl butyl glycollate, N-alkyl-toluene sulphonamides, and stabilizers, e.g. hydroquinone, N : N1-hexamethylene - bis - o - hydroxy - benzamide, N-phenyl - a  or b  - naphthylamine, and a  : a  bis - (2 - hydroxy - 3 : 5 - dimethylphenyl)-butane.  The products may be used as gaskets, diaphragms for pumps, fuel containers, balls for games, tyres, protective clothing, leather cloth, floor coverings and in coating compositions.  Examples describe (1) milling together polyethylene sebacate modified by hexamethylene di-isocyanate and a chloroprene polymer, with and without the addition of magnesium oxide and zinc oxide; (2) using an interpolymer of chloroprene and isoprene in processes as in (1).
Patent GB-803019-A (GB)
Title: Method of preparing a fluorescent screen and a fluorescent screen when prepared by the method
IPC: H01J9/227
Filed: 1955-03-10
Abstract: 803,019. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS, Inc. March 10, 1955 [March 24, 1954], No. 7097/55. Class 39(1). Method of preparing a fluorescent screen for a colour television tube includes the steps of coating a glass or other plate 12 of the screen with a tacky material 14, arranging a mask 10 of conductive material having apertures 20 in spaced relation, by the annular member 36, with the coated plate, introducing a quantity of a colour-emitting phosphor 18 into a region opposite the coated plate and separated therefrom by the apertured mask and electrostatically charging the phosphor in a field arranged between the apertured mask and a conductive plate 16 to cause the phosphor particles to migrate through the apertures 20 and to be deposited on areas of the plate 12, 14 which are exposed by the apertured mask. Second and third colour emitting phosphors can be deposited on other areas of the plate 12, 14 by indexing the mask 10 with respect to the plate 12 or by using differently apertured masks, the additional phosphors being placed in turn on the plate 16 or fresh plates 16 with the additional phosphors being used. Alternatively the operations can be carried out at three stations, the glass plate 12 being carried to each station in turn. The phosphor can be deposited on the plate 16 by blowing a charge through the tube 40. A screen 30 can be positioned between the plate 16 and the mask 10 to break up or intercept lumps of phosphor and can be in the form of a wire mesh having 325 holes to the inch. The plate 16 can be made of aluminium or graphite and annular spacing members 32 and 34 of "Bakelite" (Registered Trade Mark). The distance between the mask 10 and the plate 16 can be about “ inch with a potential difference of about 7-10 KV between them. The tacky material 14 can be silicone grease, phosphoric acid deposited as smoke on moist glass or moistened with water vapour, potassium or sodium silicate, or nitro-cellulose lacquers. After the phosphor screen has been formed the tacky material can be baked-out or otherwise removed. In the embodiment illustrated in Fig. 3 a dished face-plate 50 of a C.R.T. and a correspondingly dished mask 52 are used.