baber/WOPTO huggingface dataset:
Patent GB-883825-A (GB)
Title: Improvements in or relating to private automatic telephone exchanges
Inventor: IVES ARTHUR JOSEPH
IPC: H04M11/02
Filed: 1957-06-13
Abstract: 883,825. Automatic - exchange systems. AUTOPHONE Ltd. June 4, 1958 [June 13, 1957], No. 18681/57. Class 40 (4). A private automatic-exchange comprises arrangements for connecting a calling substation to a loud-speaking general call or public address system when a call is not answered. The connection to the general call system may be automatic after a delay equivalent to form ringing cycles. In a modification, an extra digit is dialled to obtain the connection. The call may be answered from any substation by dialling a code digit. Automatic connection. (Prov. Fig.). A test relay H (winding not shown) pulls up when the called substation tests free on final selector FS and two-step relay PA comes up (first step) over contact h. The driving circuit of finder HS is completed over x contact pa4 and the switch is stepped to find the final selector FS which is now marked with battery on the bank of wiper e. Relay ST comes up when wiper e finds battery and timing relays T, M interact to measure the delay. Both relays T, M are up together at the end of the delay period. If the call is still unanswered, relay CR comes up and PA takes the second step, connecting the incoming line a, b to the public address amplifier input terminals over contacts pa1(y), pa3(y). An announcement is made from the calling station. A code is dialled from any station and a final selector FS is stepped to its last outlet. Relay AN comes up and interconnects the two substations over the a and b wipers of FS, HS. In a modification, the terminals 11, 12 give access to a public address operator who makes the necessary announcement. Connection to public address system obtained by dialling. (Comp. Fig.). An extra digit is dialled when no reply is received. Relay PA takes both steps in response to an impulse repeated by contact j1 in the control circuit of FS. As before, switch HS finds the final selector FS and ST comes up to connect the incoming line a, b to the amplifier input. The call is answered as before.
Patent GB-457507-A (GB)
Title: Improvements in or relating to incendiary projectiles
IPC: F42B12/44
Filed: 1935-07-01
Abstract: 457,507. Projectiles. CRAVEN, T. A., 21, Stanah Gardens, Thornton-le-Fylde, Lancashire. July 1, 1935, No. 18718. [Class 9 (i)] An incendiary projectile comprises in combination an outer shell A in one with a nose - piece containing a spring-controlled plunger G, a base-piece B in one with a fusible container F containing an incendiary charge and a central rod D connecting the base-piece B with the top C of the container, a percussion cap E on the top of the container, leaf springs H on the base-piece, and radially extensible members I normally confined within the basepiece. When the projectile hits a target, the percussion cap E is fired by the plunger G and this results in the ignition of the incendiary charge and the ejection of the base-piece and incendiary container from the outer shell, which continues its flight, while the ejected parts are retained at the hole made in the target by the leaf springs H in conjunction with the members I, which extend out to a diameter greater than that of the hole formed in the target.
Patent GB-136782-A (GB)
Title: Improvements relating to the Measurement of Distances Between Two Objects, applicable more especially to the Distance of an Overtaking Vehicle.
Inventor: STERN LOUIS JOSEPH
IPC: G01C3/22
Filed: 1919-07-28
Abstract: 136,782. Stern, L. J. July 28, 1919. Range-finders.-A reducing or plane mirror 10 mounted as usual on a motor-car to give a view of the road behind is provided with graduations a - - d to indicate the distance of an overtaking vehicle by depression or subtense methods,
Patent GB-1283832-A (GB)
Title: Preparation of mercaptans
IPC: C07C/
Filed: 1970-04-21
Abstract: 1283832 Mercaptans STAUFFER CHEMICAL CO 21 April 1970 [19 May 1969] 18913/70 Heading C2C Mercaptans are prepared by reacting H 2 S with olefinic compounds in the presence of a free radical initiating compound and a trivalent organic phosphorus compound of formula where X, Y and Z are each O or S, a, b and c are each 0 or 1 and R<SP>1</SP>, R<SP>11</SP> and R<SP>111</SP> are C 1-20  hydrocarbyl. The phosphorus compound may be formed in situ by reaction of phosphine with the olefine. Suitable free radical initiators include peroxy compounds and azo compounds. The olefinic compound may be substituted with halogen, CN, carboxy, carboxylic ester, carbonyl, tertiary amino, sulphoxide, sulphone, hydroxy, ether, thioether or amide groups.
Patent GB-256263-A (GB)
Title: Improvements in fulling machines
IPC: D06B23/02
Filed: 1926-07-30
Abstract: 256,263. Corti, G. July 30, 1935, [Convention date]. Rollers.-The ebonite &c. rings 1 arranged obliquely on a fulling roller are made in one with discs which are threaded on the shaft 2 with intermediate oblique blocks 3 and are clamped in position by threaded sleeves 4. These sleeves may be shouldered at 6 and 7 to prevent the mixing of the fulling and lubricating liquids.
Patent GB-397649-A (GB)
Title: Improvements in and relating to hot water boilers
IPC: A47J31/56
Filed: 1932-07-06
Abstract: 397,649. Heating water. NAYLOR, S., Greetland Boiler Works, Halifax, Yorkshire. July 6, 1932, No. 19074. [Class 64 (i).] In a gas-heated hot-water boile comprising an outer water space c and an inne cylinder f with a cone-shaped base k forming a narrow waterway in combination with a removable cone m leading to a boiling-wate: chamber o, the cone and boiling water chamber are formed as a plain, removable cylindrical mem ber p without external protuberances. The space t between the cone m and cylinder p may be evacuated. A flue k<1> may be led from cone k up through the cylinder p.
Patent GB-1468037-A (GB)
Title: Elevator system
IPC: B66B1/36
Filed: 1974-05-01
Abstract: 1468037 Winding speed sensing device WESTINGHOUSE ELECTRIC CORP 1 May 1974 [1 May 1973] 19087/74 Heading B8B A speed sensor 30 for monitoring and controlling terminal slowdown of an elevator car, includes an eddy current coupling 73 having an electroconductive disc 78 rotatably driven in proportion to the elevator car speed, and a permanent magnet 86 magnetically driven by the disc for pivoting about an axis 64, the magnet 86 being counterbalanced by cams 100 at the opposite side of the axis 64, which cams are each arranged to operate one of a pair of adjustable switches 122, 132 depending on the direction of car movement each cam operating its associated switches at a different speed. Springs 180, 182 of adjustable strength are applied to the magnet/  cam member to provide retarding and restoring forces thereon when the elevator speed is increasing and decreasing, to reduce the difference between the opening and closing points of the switches. The input to the disc 78 through its shaft 62 is from a transmission rope secured within a loop formation to one elevator car, and driving through a pulley system, a transmission chain being associated with a chain slack detector for stopping the elevator drive.
Patent GB-1262130-A (GB)
Title: Trays
Inventor: CASH JOHN BRIAN
IPC: A47G23/06
Filed: 1969-04-15
Abstract: 1,262,130. Food tray. J. B. CASH. Jan.21, 1970 [April 15, 1969], No.19202/69. Heading A4A. A tray 21 made e.g. from plastics material has recesses 22, 23, 24 and 25 for food items, division being by ribs 26 at the ends of which are dependent feet 31 and a further recess 33 for a glass or cup. The further recess is slightly deeper than the others and may be used as a handle underneath the tray. Holes may be provided as an alternative to recesses to hold e.g. plates. (For Figure see next page)
Patent GB-274891-A (GB)
Title: A voltage amplifier valve unit
IPC: H01J21/20
Filed: 1927-07-21
Abstract: 274,891. Loewe Audion Ges. July 21, 1926, [Convention date]. Vacuum tubes.- In a voltage amplifier system, a three electrode valve is structurally combined with the anode resistance, grid condenser and grid leak of the succeeding stage, and pin and other terminals are provided on a cap. As shown, an anode resistance 14, a grid condenser 17, a grid leak 20, and the electrode structure 10 are mounted on a glass support 31. The filament, grid, and anode resistance are connected' with pins 25, and a terminal, not shown, mounted on the cap is connected with the grid condenser and may be connected with the. grid of the succeeding valve. The grid leak may be connected with a terminal 30, or may be connected inside the valve with the cathode. In a modification the coupling elements are mounted in the cap.
Patent GB-460951-A (GB)
Title: Improvements in or relating to strap joint-forming tools
IPC: B65B13/34
Filed: 1936-07-14
Abstract: 460,951. Sealing pliers. GRAVES, W. L. (Signode Steel Strapping Co.) July 14, 1936, No. 19516. [Class 61 (ii)] Strap joint-forming tongs comprising handle members 10, 11 pivoted together on a pin 12 and pivoted by means of pins 17, 18 to jaws 19, 20 pivoting on a bolt 21 have the handle members thickened at 40, 41 and slotted to provide an interleaved joint 44 ... 47 around the pivot 12 and at the pivots 17, 18 of the jaws, which are also of slotted formation at the upper ends 48, 49 and around the pivot bolt 21. Each jaw is equipped with two deforming pins 52 to form a double tandem joint and the jaw construction includes an anvil plate 22 with perforated lugs 23, 24 engaged by the bolt 21 and side plates 30, 31 also perforated to engage the bolt 21 and slotted at 34 to engage the ends of the pin 12 and recessed and slotted at 32, 35 to accommodate the ends of the anvil.
Patent GB-184980-A (GB)
Title: Improvements in automatic liquid soap distributors
IPC: A47K5/12
Filed: 1921-07-20
Abstract: 184,980. Robert, A. July 20, 1921. Soap-hobders.-The orifice b of a tank a discharging liquid soap into a receptacle c is obstructed when a definite quantity of soap has collected, and is so placed with regard to the receptacle c that only the tips of the fingers can reach the soap. The rim f is provided to prevent drops of soaps adhering to the finger tips.
Patent GB-1493540-A (GB)
Title: Arrangements for increasing the impedance of transformer windings
IPC: H01F27/42
Filed: 1975-05-09
Abstract: 1493540 Active impedances FELTEN & GUILIEAUME CARLSWERK AG 9 May 1975 [9 May 1974] 19598/75 Headings H3R and H3U An arrangement for increasing the effective impedance of a winding 1 surrounding a pair of cores of magnetic material comprises an amplifier 2 with its input connected across the winding 1 and its output connected to a second winding 3 which surrounds one of the cores only, the turns ratio of the winding 3 to the winding 1 being equal to the gain of the amplifier. The increase in impedance obtainable is limited by the winding resistance and stray inductance of the winding 3, and this effect can be cancelled by the inclusion of the RL circuit 4 and amplifier 5. Instead of the amplifier 5, the RL network may be connected to a second input on amplifier 2 Fig. 3 (not shown), or instead of the RL network the second amplifier, or second input to the first amplifier, may be linked to a third winding linking on one core Figs. 4, 5 (not shown). The arrangements of Figs. 3, 5 may be combined Fig. 6 (not shown). In further modifications, corresponding to those of Figs. 4, 5, 6 the signal to the third winding is taken from the output of amplifier 2 instead of its input, Figs. 7, 8, 9 (not shown).
Patent GB-393773-A (GB)
Title: Improvements in neck wear for ladies
IPC: A41D25/00
Filed: 1932-07-13
Abstract: 393,773. Ladies' neckwear. MITCHELL, L., 55, Gatehill Road, Northwood, Middlesex. July 13, 1932, No. 19742. [Class 141.] An article adapted for wear by ladies as a scarf or scarf-front is made by cutting a rectangular piece of fabric along one diagonal, arranging the two parts 3, 4 so formed, as shown, in overlap relation and sewing together at 6, and finally folding about a longitudinal line 7 and securing the abutting edges. An ornamental strip may be secured between the abutting edges of the scarf.
Patent GB-489892-A (GB)
Title: A rotary offset copying machine
IPC: B41L29/00
Filed: 1937-07-16
Abstract: 489,892. Rotary offset machines; preventing set-off; tripping-arrangements; printing-surfaces. KLUITMANN, L. July 16, 1937, No. 19752. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 25, 1938.] [Class 100 (ii)] A rotary offset copying machine employing a flexible printing-sheet has automatic means for changing the sheet in combination with a device for cleaning the transfer cylinder before use of the fresh printing-sheet. The leading edge of the sheet is held by grippers 42 on a cylinder 1 adapted to co-operate with either of two transfer cylinders 2, 2a, that in operative position coacting with an impression cylinder 3. The grippers 42 are opened to release the used sheet and to receive the fresh sheet by mechanism similar to that described in Specification 374,665 comprising a cam 29 on a slide 20 which is raised on the depression of a lever 21. A member on the slide moves a pinion 18 along a shaft 17 into mesh with a gear segment on the cylinder 1, whereby the shaft is rotated and with it cranks 15 carrying pins 16 engaging in slots 40 in levers 13 which are rocked about the axis of the cylinder 1 and actuate a slide 38 carrying the cylinders 2, 2a to move one out of and the other into operation. That out of use is cleaned by a brush 10, the two cylinders being connected by a driving-chain &c. to provide the necessary rotation for cleaning. The transfer roller in use may be continuously cleaned by a rotary brush.
Patent GB-320344-A (GB)
Title: Process for the manufacture of tanning-material products
IPC: C14C3/10
Filed: 1928-07-07
Abstract: 320,344. Aistrup, R. July 7, 1928. Extracts, making and treating.-Vegetable tanning extracts are dried to obtain a product of a thread-like structure by first concentrating an aqueous extract until the water content is reduced to 60-70 per cent and then spray-drying the concentrate whereby a material containing 1-5 per cent of water is obtained. The product may be compressed into the form of briquettes or the like.
Patent GB-358477-A (GB)
Title: Manufacture of arylides of unsymmetrical ortho-xylenolcarboxylic acid
Filed: 1930-06-30
Abstract: Arylides of the o-xylenol-carboxylic acid obtained according to Specification 347,407 are made by treating the said acid or its chloride with arylamines in the presence of a condensing agent in the case of the acid, and if desired, a diluent.  The products are probably 1 : 2-dimethyl-4-hydroxy-5-carboxylic acid arylides. According to examples, the o-xylenol-carboxylic acid obtained as stated above is condensed with aniline, 3-aminophenol, 7-amino-1-naphthol, p-chloraniline, o-toluidine, 2-naphthylamine, and the products obtained from the following amines are specified:-toluidines, xylidine, chloranilines, nitranilines, methoxyanilines, chlortoluidines, chlormethoxyanilines, methoxynitranilines nitrotoluidines, amino-diaminoand chloroamino - hydroquinonedialkylethers, a -naphthylamine, 2-amino-7-naphthol, dichloromethoxychloro-, and chloro-methyl-p-phenylene diamines. Other amines mentioned are diamines of the napthalene and diphenyl series, and of the diphenylamine and carbazole series.
Patent GB-391649-A (GB)
Title: Improvements in pivots for window frames, sashes and the like
IPC: E05D7/08
Filed: 1932-07-15
Abstract: 391,649. Window pivots. COOK, A. E., 23, Morley Street, Redfield, Bristol. July 15, 1932, No. 20009. [Class 65 (ii).] A vertical window sash 2 is mounted on a ball pivot 5 resting in a cavity formed by a two part fitting 6, 6<1> which is split on the line 7. The part 6<1> ie secured to the lower sash by screws 9, and when removed allows the ball to drop into a recess 10 so that the window 2 may be drawn out sidewise. In a modification a roundheaded screw supports the ball in position, the screw being situated in the fitting 6<1>. In a further arrangement the ball 5 remains in position after the removal of the fitting 6<1> until the window 2 is moved sidewise. The Provisional Specification states that a second smaller ball may rest below the pivot ball.
Patent GB-1218244-A (GB)
Title: Novel vinyl chloride copolymers
Inventor: NAKAMURA AKIHIDE
IPC: C09D127/06
Filed: 1968-04-26
Abstract: 1,218,244. Vinyl chloride-epoxy comonomers. SUMITOMO CHEMICAL CO. Ltd., and KANSAI PAINT CO. Ltd. 26 April, 1968, No. 20038/68. Heading C3P. [Also in Division B2] A fusion coating composition comprises a copolymer of 95-99À5% by wt. of vinyl chloride or a mixture of at least 80% of vinyl chloride with not more than 20% of a copolymerizable monomer and 5-0À5% of an ethylenically unsaturated monomer containing at least one glycidyl group, e.g. glycidyl acrylate, methacrylate or alkyl maleate, or allyl or styryl glycidyl ether, having a degree of polymerization of 400-700 and 20-35 p.h.r. of a plasticizer. The third monomer when present may be vinyl acetate (exemplified), an alkyl acrylate or methacrylate, styrene or vinylidene chloride. The polymers are obtained by emulsion technique with a water-soluble or Redox initiator in the presence of trichloroethylene. The products are mixed with plasticizer and optionally PVC, organo-tin or epoxy stabilizers, an anhydride, amine, e.g. diamino diphenylsulphone, or boron trifluoride complex curing agent, pigment or filler, to produce fusion coating compositions.
Patent GB-797424-A (GB)
Title: Improvements in optical
IPC: G02B27/46
Filed: 1954-07-08
Abstract: 797,424. Optical systems; photographic processes. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. July 8, 1954 [July 15, 1953], No. 20042/54. Classes 97(1) and 98(2) The invention is concerned with improving the quality or an image obtained from a transparent record of an image produced by an optical instrument. The instrument defects are first investigated. This may be done by calculation if the defects are due only to diffraction or experimentally by studying, e.g. with a movable slit and photoelectric cell, the contrast in the image of an object of adjustable fineness. This enables a function to be obtained representing the transmission characteristics of the system for different "spatial frequencies". The record of the defective image is then placed at P adjacent a lens L which images at A' a source A of coherent light. At F is inserted a filter having spatial frequency characteristics complementary to those of the original system, if only instrument defects are to be corrected, or so chosen, in relation to the instrument characteristics, as to discriminate against certain frequencies if, for example, it is desired to reduce grain. The filter consists of a transparent support carrying a metal deposit of varying density produced, for example, by electrolysis, photography or vacuum deposition. The graduation of density calculated to be needed is obtained by a rotating mask of appropriate profile.
Patent GB-1162297-A (GB)
Title: Improvements in or relating to Shoe Manufacture
Inventor: COULSON RONALD GEOFFREY
IPC: A43D8/00
Filed: 1967-05-01
Abstract: 1,162,297. Boots &c. SHOE & ALLIED TRADES RESEARCH ASSOCIATION. 23 April, 1968 [1 May, 1967], No. 20139/67. Heading A3B. A toe puff 20 is bonded to a pre-formed upper component 18 by placing the preformed upper component 18 in the cavity 2 of a resilient female mould 1 with the flange or feather edge of the upper component lying on the surface 4 of the mould 1, placing the toe puff 20 having adhesive on its convex surface on the upper component 18 and then applying pressure with a heated male mould member 5. The male mould member 5 may have a non-stick surface 6 e.g. of p.t.f.e. The apparatus may also include flange engaging means 7 which turns the flange of the upper component through at least 90 degrees and held it for a time sufficient to set the flange in this position by the effect of heat from the male mould member 5. The flange engaging means 7 consists of a band 10 carried by arms which are pivoted to a cross-bar 14 on the piston rod 17 of an air motor 8.
Patent GB-868720-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B37/14
Filed: 1957-06-27
Abstract: 868,720. Water-tube steam boilers. ROSSI, G. June 27, 1957 [June 27, 1956]. No. 20281/57. Class 123(2) A steam generator comprises a combustion chamber bounded by contacting generating tubes A which extend between a lower header D and an upper header C which is connected by risers 5 to the steam and water drum (not shown), the headers C, D also being connected by a group of downcomers B which may be disposed in a second gas pass. Circulation occurs between the headers as indicated by the arrows and steam separates in the upper header thus allowing the main drum to be made of smaller size. In Fig. 4 the drum is replaced by a collector - separator F consisting of a number of horizontal tubes interconnected by short transverse tubes. The generating tubes A<SP>1</SP> discharge into a header C<SP>1</SP> which is connected to the top of the collector F by a riser 5<SP>1</SP> and to an intermediate header E by downcomer tubes B<SP>1</SP>. The downcomers B<SP>1</SP> also connect the header E with the lower header D<SP>1</SP> whilst the lower part of the collector F is connected with the header E by tubes 8. In Fig. 5 a combustion chamber G is formed between tube assemblies of the form shown in Figs. 2 and 4, feedwater being supplied to the lower headers D<SP>11</SP> through a pipe 9 and to the drum F" through a pipe 10.
Patent GB-482246-A (GB)
Title: An improved arrangement of valves and operating mechanism for high speed compressionignition engines
IPC: F01L1/28
Filed: 1937-07-22
Abstract: 482,246. Valves ; valve gear. ARTON, J. H. July 22, 1937. No. 20296. [Class 7 (vi)] In a compressionignition engine, the air-inlet valve A is arranged within the exhaust valve Band is actuated bv a cam having two lobes, one of which corresponds to the usual inlet valve cam, and the other is of the same form and disposed at the same angle as the exhaust valve cam, so that the inlet valve gear follows up the inlet valve when the latter is carried downwards by the opening of the exhaust valve. The springs F, F<1> closing the valves are arranged outside the cylinder head to keep them cool. In a modification, the inlet valve is actuated by a normal cam and push rod, and by a lever comprising two arms 1, 4, Fig. 3, pivoted at 2 and pressed apart by a spring 7 acting on a plunger 8, which slides in a cylinder 6 on the arm 4 and contacts with an abutment 9 on the arm 1. The spring may be replaced by a hydraulic device. In another modification, the inlet valve is actuated by a normal cam and rocker, and by a telescopic push rod, either spring or hydraulically loaded.