baber/WOPTO huggingface dataset:
Patent GB-1046017-A (GB)
Title: Improvements in or relating to bracelets or the like
Inventor: WALKER KENNETH CECIL
IPC: A44C5/10
Filed: 1964-07-30
Abstract: 1,046,017. Chains. DAVID SHACKMAN & SONS Ltd. July 28, 1965 [July 30, 1964], No. 30201/64. Heading B8A. [Also in Division A3] An inextensible bracelet chain comprises a series of overlapping plates 1 each with a taglike portion 4 at each end and pairs of the plates are flexibly connected by passing the the portions 4 through pairs of holes provided in coupling links 2. Adjacent ends of pairs of links 2 are bridged by a series of links 5 by passing the ends of the portions 4 through pairs of holes provided in the links 5. The links 5 are provided with two laterally extending projections which are hammered into the face of the links to grip the extremities of the portions 4 which may be provided with a groove 8 to receive the hammered material.
Patent GB-490040-A (GB)
Title: Improved synthetic resins and coating and like compositions containing the same
IPC: C08G8/28
Filed: 1936-11-05
Abstract: A synthetic resin is obtained by heating together an hydrogenated phenol-aldehyde resin, a natural acidic resin, and a polyhydric alcohol.  Preferably, hydrogenated phenolformaldehyde resin, glycerol, and rosin are used, while blowing with an inert gas, e.g. carbon dioxide.  In examples: (1) hydrogenated cresol-formaldehyde resin, glycerol and rosin are heated to give a resin soluble in chinawood oil, and a varnish is prepared from such a solution, diluted with "Hi-flash" naphtha; (2) hydrogenated xylenol-formaldehyde resin, glycerol, and crude rosin give a resin soluble in aliphatic and aromatic hydrocarbons, and in chinawood oil, and compatible with paraffin wax; (3) hydrogenated phenolformaldehyde resin, glycerol, and crude rosin give a resin soluble in toluene, butyl acetate and chinawood oil.  Alternatively, the natural resin and glycerol may be first reacted, then the hydrogenated phenol-aldehyde resin be added and the mixture heated. Phenolaldehyde resins prepared from phenol, o-cresol, p-cresol, xylenols, thymol, mesitol, carvacrol, o-ethyl-phenol, p-tert-butylphenol, p-tert-amylphenol, bis - (4 - hydroxyphenyl) - dimethylmethane, bis - (3 - methyl - 4 - hydroxyphenyl)-dimethylmethane, resorcinol, or p-phenylphenol and aqueous formaldehyde, paraformaldehyde, methylene chloride, hexamethylenetetramine, acetaldehyde or benzaldehyde may be hydrogenated in solution in an organic solvent, e.g. ethyl alcohol, by hydrogen under pressure in presence of a catalyst, e.g. nickel on kieselguhr.  The natural acidic resin may be rosin, run Congo, Kauri, Manilla, and Zanzibar copals, elemi, and sandarac may be hydrogenated before use, and in the case of rosin may be partly substituted by rosin-maleic-anhydride addition products or by maleic-anhydrideterpene condensates.  The polyhydric alcohol may be glycerol, diethylene glycol, sorbitol, pentaerythritol, or hexamethylene glycol.  The resins may be used, e.g. as coating-compositions, alone or with other natural and synthetic resins, e.g. polyhydric alcohol-polybasic acid resins, other phenol-aldehyde resins (hydrogenated or not), cumar resin, rosin esters, and chlorinated rubber.
Patent GB-409343-A (GB)
Title: Improvements in or relating to sound recording or reproducing devices
IPC: H04R11/08
Filed: 1932-10-28
Abstract: 409,343. Phonographic recorders and reproducers. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Harrison, H. C. ; 94, Bayview Avenue, Port Washington, New York, U.S.A.) Oct. 28, 1932, No. 30223. Convention date, Dec. 17, 1931. [Class 40 (iv).] Relates to phonographic recorders and reproducers, more particularly for use with hill and dale records, of the type in which a polarised armature extends into the gap of a bifurcated pole piece of polarity opposite to that of the armature, the pole-piece having one or more coils associated therewith. According to the invention the pole - piece forms a common pole for a pair of opposed magnetic structures adapted to supply polarising flux to the armature through flux feeding members positioned closely adjacent the lateral surfaces of the armature on opposite sides of its plane of vibration. The construction of recorder shown comprises a main frame 11 having a tubular portion 12 which is cut at its lower end to form a seat for a V-shaped diaphragm 13 whilst its upper end is threaded to receive a clamping ring 14 for the casing 15. A laminated bifurcated pole-piece 18 carrying coils 46, 47 is supported in a central position in the casing on upright members 16, 17 integral with the frame 11 and a wide slot 19 is provided to permit the twin magnets 20, 21 to extend downwardly into contact with flux feeding members 22, 23, which are preferably brazed to the inner side of frame 11 and between which the armature 24 is held by a bar 25 secured in a groove 26 in the armature and in corresponding grooves in the members 22, 23 and also soldered rigidly in a groove formed at the apex of the diaphragm 13. The necessary pivotal movement of the armature is permitted by flexure of the bar 25 between the armature and the members 22, 23 at which points the bar may be notched to reduce its cross-sectional area. In an alternative construction, the bar may be substantially rigid throughout and supported at its ends by flexible yokes. The armature, which may be made up of two or more laminations held together by a rivet 27, is tapered upwardly between the pole faces 28, 29 whilst its lower end is formed with a laterally extending portion 30 contacting the inner side of diaphragm 13 and secured to the stylus arm 33 by a set screw 32. The stylus arm consists of a tapered portion 34 and a light weight but very stiff extension member 35 carrying the cutting stylus 36. The portion 34 contacts with the outer side of diaphragm 13 so as to constitute a continuation of the armature through the diaphragm which seals the casing 15 which is partially filled with a damping fluid. The armature assembly is thus in effect a single vibrating mass and, due to the shape of the diaphragm 13, the arm 33 may be positioned so that its axis extends through the pivot of the armature as shown.
Patent GB-987742-A (GB)
Title: Novel mandelic acid derivatives and a process for the manufacture thereof
IPC: C07D451/10
Filed: 1963-07-31
Abstract: The invention comprises pyridyl-(3)-mandelic acid derivatives of formula <FORM:0987742/C2/1> wherein R is hydrogen or an alkyl, haloalkyl, dialkylaminoalkyl, quaternary ammonium alkyl or a N-heterocyclic ring and the preparation thereof by oxidation of pyridyl-3-benzyl ketone, preferably in 5 to 15 times its weight of an inert solvent, with selenium dioxide preferably in equimolar proportion at up to the reflux temperature of the solvent and re-arrangement of the resulting 1-phenyl-2-[pyridyl-(3)]-glyoxal with alkali preferably for 2 hours at between 90 DEG  and 95 DEG  C. and esterification of the resulting 2-pyridyl-(3)-mandelic acid where appropriate.  Therapeutic compositions having spasmolytic properties for oral, rectal or parenteral administration comprising a compound of the first general formula above and an inert diluent or excipient.
Patent GB-925271-A (GB)
Title: Conduits formed from structural parts of ships
IPC: B63B27/24
Filed: 1961-08-22
Abstract: 925,271. Conduits formed from ship's structure. KONINKLIJKE MAATSCHAPPIJ DE SCHELDE N. V. Aug. 22, 1961 [Aug. 22, 1960], No. 30314/61. Class 113. Conduits for filling and emptying a ship's tanks are formed from parts of the structure of a ship. The tanks are defined by bulkheads 4 and 5 to which channel-sectioned strength members 8, 11, 12, 13, 14, 15, may be secured to form conduits. Other conduits are formed by channel members 9 and 10 joined to a girder 6. Valved branches 16, 17 connect the tanks to the lower conduits and thus to a pumping chamber (not shown) which the upper conduits connect to quay connections 18. The Specification also describes conduits formed using ribbed bulkheads. A direct connection for gravity filling is shown between the conduits 11, 14.
Patent GB-794531-A (GB)
Title: Improvements in or relating to television transmission systems
Inventor: COOPER VICTOR JAMES
IPC: H04N7/12
Filed: 1955-10-24
Abstract: 794,531. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 5, 1956 [Oct. 24, 1955], No. 30320/55. Class 40 (3). In a television system the rate of transmission of brightness information is made substantially constant, irrespective of picture content, thus effecting a better utilization of available transmission bandwith. This is achieved by deriving from picture signals generated by conventional constant velocity scanning a further picture signal of the velocity modulated scan type in which the velocity of scanning is determined by changes in slope of the original picture waveform (i.e. by variations in the brightness content). As shown in Figs. 1 and 2, picture signals (a) derived by scanning a scene A with a conventional constant velocity scanning camera B are supplied to a picture tube J and there reproduced as a picture, also with constant velocity scanning, after a predetermined time interval determined by a delay device H in the picture signal circuit and a delay device H<SP>1</SP> in the scanning circuit. The reproduced picture is then rescanned by a camera tube K the scanning circuit L of which varies the velocity of scan in accordance with control signals supplied thereto. The control signals are produced in a quantizing circuit G which, in response to input signals (e) derived in a circuit F which differentiates a sawtooth wave (d) generated in E under the control of the twice differentiated (in C and D producing waveforms (b) and (c) respectively) signal (a) from camera B, supplies the waveform (f) consisting of a series of pulses which can occupy only N discrete amplitude levels (N being equal to 3 in the arrangement shown) each level being inversely proportional to the frequency content of the original signal and each pulse occurring after a fixed time after changes in slope in the original signal (a). The signal output of tube K when the velocity of scanning is controlled in accordance with the pulse train (f) is shown in curve (h) whence it can be seen by comparison with curve (g), which is identical with curve (a) delayed, that a better utilization of bandwidth results. To enable the signals from tube K to be reproduced at a co-operating receiver the scanning control signals (f) are also displayed on a picture tube M and scanned by a camera tube O operating with the same velocity modulated scan as tube K thus producing scanning control signals (j) which after modulation on to a sub-carrier in P are then employed together with the output of tube K to modulate a main carrier for transmissions from transmitter Q. At a co-operating receiver the picture signals (h) and scanning control signals (j) are separately derived in a conventional circuit S, the former signals being employed to modulate the intensity of the beam in reproducing tube U and the latter signals to control the velocity of the scanning waveform generated by unit V in accordance with their amplitude. Specifications 399,469, 413,401, 427,625 and 427,630, [all in Group XL], are referred to.
Patent GB-848204-A (GB)
Title: Improvements in or relating to surgical syringes
IPC: A61M5/315
Filed: 1956-10-04
Abstract: 848,204. Hypodermic syringes. JULLIARD, M. Oct. 4, 1956. No. 30361/56. Class 81(2). The piston of a hypodermic syringe is advanced by external rotary power means and the direction of the needle, relative to the syringe axis, is adjustable. The plunger 12 is prevented from rotating by a key 11 and is advanced by means of a thread 12 engaged by a half-nut 21, rotated by a worm wheel 17 and worm 18, connected to an external flexible drive. The half-nut is mounted on a pin 20 so that it can be lifted clear of the threads and the plunger can be actuated by hand. During power operation movement of the plunger in either direction is limited by unthreaded portions 13, 14. The needle 8 is mounted in a synthetic rubber ball 7 and projects through a slot in an end cap 5, retained by a ring nut. When the cap is loosened, the angularity of the needle may be adjusted and it may also be turned about the axis of the syringe body.
Patent GB-617658-A (GB)
Title: Improvements in or relating to apparatus for incasing articles by plastic moulding
IPC: B29C45/14
Filed: 1946-10-11
Abstract: 617,658. Apparatus for incasing articles by plastic moulding. BENN, A., and ALLEN, H. G. Oct. 11. 1946, No. 30394. [Class 87 (ii)] Sleeves 8, 9 support a hollow article 22 in spaced relation to a core member 4 and are retractable under the action of the pressure of the moulding material injected into the mould. When polystyrene is forced through a duct 3a formed in a core 3, 4, 5, into the cylindrical moulding cavity C, it flows around the article 22 and between the bore in the article and the core member 4, until sufficient pressure is built up to force back the sleeves 8, 9, against the action of springs 10, 11, whereupon plunger 16, 17, drop in behind flanges 14, 15, to hold the sleeves in the retracted position. The two-part mould 1, 2, is then dismantled. Two protruding arms 23, 24, of the article 22, e.g., a coil such as a choke used in electronic equipment, serve to locate the article axially of the bore by means of hollow screws 30, 31. The bore in the article need not be axially disposed or penetrate the article completely. More than one such bore or cavity can be provided for by the provision of suitable core and retractable supporting members.
Patent GB-1480397-A (GB)
Title: Tabulator mechanism for a typewriter or similar machine
IPC: B41J21/02
Filed: 1974-07-09
Abstract: 1480397 Typewriters &c. TRIUMPH WERKE NURNBERG AG 9 July 1974 [10 July 1973] 30434/74 Heading B6F A rail 1, carrying tabulating stops in the form of spring clips 5, has slots defined by ribs 11, which prevent axial movement of the clips 5, and stops 3, 4, which are respectively engaged by feet 12, 13 of clip 5, defining two positions for each clip 5. As shown the clip 5 is located clear of a stop 9. The clips 5 may be of flat or preferably round section spring steel wire.
Patent GB-257463-A (GB)
Title: Road direction signals automatically operated by road traffic
IPC: G08G1/02
Filed: 1925-12-03
Abstract: 257,463. MacDonald, W. J. Dec. 3, 1925. Road signals.-Relates to signals automatically operated through the depression by the vehicle of a spring-mounted electrical contact device in the roadway, and consists in a simplified construction involving a flat-topped contact sunk in the roadway, which contact is engaged by a spring- mounted contact bar depressed by the vehicle. In the example shown in Fig. 2, a vehicle travelling on the road Z and approaching the road XY passes over a road switch A2 making the circuit of a battery B2 and signal S3, which shows red lamps having letters R, L, the lamp R warning traffic on the road XY approaching the signal from the left that other traffic on the road Z is approaching the corner from the right, and the lamp L warning traffic approaching the signal from the right that traffic on the road Z is approaching the corner from the left. Road switches A1, A3 in the road XY operate similarly signals S1, S2 in the road Z. Examples applied to four cross roads and to a single turn are given. The road switch shown in Fig. 5 comprises a bar A<1> movably mounted in a slot 3 and supported by springs 10 so as to be level with or slightly above the road surface. Below the bar is a flat-topped contact 9 suitably wired to the signals so that the latter are operated when the bar is depressed by passing traffic. Specifications 138,792, 154,489, 159,977, 196,719, 221,328. 227,250, and 229,384 are referred to.
Patent GB-340058-A (GB)
Title: Improvements in flexible electric conductors or cables
IPC: H01B7/18
Filed: 1929-10-08
Abstract: 340,058. Cables. JOHNSON & PHILLIPS, Ltd., Charlton, London, and PYNE, A. P., Melrose, Hatherley Road, Sidcup, Kent. Oct. 8, 1929, Nos. 30541/29 and 5007/30. [Class 36.] A flexible electric conductor for lighting or power comprises wires braided round a whipcord or other stranded centre and enclosed in a common insulating cover. The cable may comprise both braided and stranded conductors. Figs. 1 and 2 show a single lead for use as a lift control. Copper braid 2 surrounds a whipcord centre 1 and is covered with vulcanized rubber 3 and layers 4, 5 of treated tape and braided cotton, respectively. Figs. 5 and 6 show a trailing cable comprising power cores 6 and a single pilot consisting of copper braiding 2 round a whipcord centre 1. The cores 6 and the pilot are laid up in a rubber cylinder 7 which is covered with tape 8 and outer rubber 9. Each core 6 is insulated with rubber 10, and an earth screen 11 is laid on a tape layer placed over the rubber 10. The screen 11 consists of wire strands, spirally laid without crossing, on the insulation. A bare earth strand 12 in contact with the screens 11, is laid down the centre of the cable. In a modified construction of trailing cable, power cores and braided pilots are independently rubber insulated, the whole being embedded in a rubber cylinder. The braided pilots may be twisted together with a short lay and laid up in pad of rubber placed centrally in the cable. The power cores are embedded in external grooves in the rubber pad. In a further modified arrangement, the stranded power cores and the pilots are all of the same overall diameter and are laid up symmetrically at a common circumference in spiral grooves in a central pad, the cores being then embedded in a common rubber cylinder.
Patent GB-306492-A (GB)
Abstract: 306,492. I. G. Farbenindustrie Akt.- Ges. Feb. 21,1928, [Convention date]. 2-Mercaptobenzothiazoles are prepared by heating o-nitrochlorbenzene or a homologue or substitution product thereof with an alkali hydrosulphide, ammonium hydrosulphide or an alkaline earth hydrosulphide and when the reduction is complete, cooling and reacting upon the mixture with carbon disulphide. The process may be carried out in the presence of water or an indifferent solvent, such as alcohol or a mixture of these, almost quantitative yields being ob. tained. The hydrosulphide, which may be employed admixed with the corresponding sulphide, is added in sufficient quantity for the formation of the corresponding o-aminophenol (a quantity equivalent to 3 molecular proportions of hydrogen sulphide) and a corresponding quantity of carbon disulphide (1 molecular proportion) is employed. Substances prepared in examples are: (1) 2-mercaptobenzothiazole, (2) 5-methyl-2- mercaptobenzothiazole from 3-nitro-4-chlortoluene, (3) 5-chloro-2-mercaptobenzothiazole from 1.4-dichlor-2-nitrobenzene, (4) 5-nitro-2- mercaptobenzothiazole; by carrying out the last reaction in the absence of alcohol a symmetric dimercaptobenzodithiazole is mainly formed. Specification 282,947 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also an alternative method wherein an o-nitrochlorbenzene, hydrosulphide and carbon disulphide are heated together in presence of a solvent as specified above; the use, as starting materials, of o-o<1>-dinitrodiphenyldisulphide, o-o<1>-diaminodiplienyldisulphide or a corresponding sulphide compound obtainable from o-nitrochlorbenzene or a homologue, analogue, or substitution product thereof is also included and illustrated by further examples. This subject-matter does not appear in the Specification as accepted.
Patent GB-210878-A (GB)
Title: Improvements in or relating to holders for kinematograph films and the like
IPC: G03B17/26
Filed: 1922-11-09
Abstract: 210,878. Ponting, H. G., and Ford, G. W. Nov. 9, 1922. Addition to 188,681. Kinematograph apparatus. - Spool holders comprising two relatively movable parts 10, 11 each containing a spool, as described in the parent Specification are provided with light-tight passages for the film. As shown, flange members 16, 17 are provided at the edges of the film slots and are covered with velvet or like material. Internal flanges 18, 19 may also be provided.
Patent GB-925424-A (GB)
Title: Aminophenyl methylcarbamates and parasiticidal compositions thereof
IPC: C07C207/04
Filed: 1960-09-06
Abstract: The invention comprises aminophenyl methylcarbamates of the formulae: <FORM:0925424/IV(a)/1> , <FORM:0925424/IV(a)/2> and <FORM:0925424/IV(a)/3> wherein R and R1 are each either methyl or ethyl, R11 is hydrogen or methyl, R111 and R1111 are hydrogen or C1-C5 alkyl, and their hydrochloride salts.  The methylcarbamates are prepared by reaction of the corresponding 4 (optionally N-alkylated) aminophenols with methyl isocyanate preferably in an inert solvent and in presence of a catalytic amount of tertiary amine; alternatively, (a) the group in the 4-position is -N=alkylidene and the reaction product is reduced with H2(Pd), or (b) the group in the 4-position is -N=arylidene and the reaction product is hydrolysed with dilute acid to the 4-aminophenylmethylcarbamate or its salt. The Specification gives a large number of examples of aminophenyl methylcarbamates prepared by these methods.ALSO:Parasiticidal compositions comprise one or more aminophenyl methylcarbamates in admixture with an inert carrier, the aminophenyl methylcarbamates have one of the formul  <FORM:0925424/VI/1> wherein R and R1 are each either methyl or ethyl, R11 is hydrogen or methyl, R111 and R1111 are hydrogen or C1-5 alkyl, and their hydrochloride salts.  The Specification gives a large number of examples of such aminophenyl methylcarbamates.  The inert carrier may be a liquid such as an aromatic solvent, a petroleum distillate or water, or a finely-divided inert solid such as a clay, pyrophyllite, gypsum, fuller's earth, diatomaceous earth or attapulgite; in either case an emulsifying or surface-active agent may be present additionally. Specified surface-active agents are polyoxyethylene derivatives of sorbitan esters, complex ether alcohols and mahogany soaps.
Patent GB-702262-A (GB)
Title: Improvements in or relating to automatic control systems
IPC: G05D1/08
Filed: 1950-05-05
Abstract: 702,262. Automatic pilots. SPERRY CORPORATION. May 5, 1950 [May 7, 1949], No. 30815/52. Divided out of 702,207. Drawings to Specification. Class 38 (4) The subject-matter is identical with -that of Specification 702,207 but the claims differ. Specifications 646,702, [Group XL(c)], and 663,913, [Group XXXVIII], also are reterred to.