baber/WOPTO huggingface dataset:
Patent GB-1171448-A (GB)
Title: Improvements in and relating to the Reconstruction of Holograms
IPC: G02B27/00
Filed: 1966-10-21
Abstract: 1,171,448. Holography. BATTELLE DEVELOPMENT CORP. Oct.21, 1966 [Oct. 23, 1965], No.26299/69. Divided out of 1,125,795. Addition to 1,104,041. Heading G2C. On reconstructing a hologram 33 1  by illuminating it with a beam 23 of coherent light from a laser 21, the zero order beam prevents viewing the first order beam, carrying a virtual image, from a position close to the hologram 33<SP>1</SP> and accordingly the zero order beam is filtered out. This may be done by a pair of grids 185, 187, having opaque lines so arranged that the zero order beam is blocked out but the first order beam is passed, the grid lines being fine enough to be invisible to the viewer but coarse enough to prevent the first grid 185 diffracting the zero order beam around grid 187. In an alternative the grids are replaced by vanes inclined at the same angle # to beam 23 that the reference beam made to the object bearing beam when the hologram was formed.
Patent GB-1438978-A (GB)
Title: Determination by means of an oxidizable chromogenic compound
IPC: C12Q1/28
Filed: 1973-06-01
Abstract: 1438978 Determinations based on oxidation of chromogenic compounds AKZO NV 1 June 1973 [14 June 1972] 26385/73 Heading G1B A process for the determination of a component of a reaction system by oxidation of a chromogenic compound and wherein a test paper provided with the remaining components of the reaction system is brought into contact with a test fluid containing the component to be determined, is characterized in that the test fluid is first contacted with oxidized cellulose or cellulose derivative,  which may be used separately or in combination with the test paper or which may be the test paper itself. Oxidation may be with periodic acid, potassium permanganate or sodium hypochlorite. The invention also comprises test papers for use in the process, in particular test papers for ascertaining pregnancy by the determination of HCG in a urine sample using a paper containing or made of the pre-treated cellulose and provided either with antibodies against HCG, a conjugate of HCG and a peroxidaze, insoluble made antibodies, a substrate for the peroxidaze and an oxidizable chromogenic compound; or with antibodies against HCG, a conjugate of HCG and a hydrogen peroxide supplying oxido-reductaze, a substrate, insoluble made antiantibodies, peroxidaze and an oxidizable chromogenic compound. The process may also be used .for determining glucose or galactose in body fluids, or bacteriuria in urine. Examples VIII and X describe the preparation of test papers containing reaction components in zones or bands of the paper strips. Examples V and VII describe the use of an oxidized cellulose in powder form.
Patent GB-698264-A (GB)
Title: Process for the manufacture of -a:-a-unsaturated carboxylic acid esters from -a-halogen carboxylic acid esters
IPC: C07C69/54
Filed: 1950-10-30
Abstract: a :b -Unsaturated carboxylic acid esters are obtained from the corresponding b -halogen carboxylic acid ester by treating the latter at an elevated temperature with an aliphatic tertiary amine free from hydroxyl groups.  The tertiary amine may be used alone or in admixture with an inorganic base such as ammonium hydroxide, and especially alkali metal hydroxides, alkaline earth metal hydroxides or alkali metal carbonates, e.g. sodium or potassium hydroxides or carbonates.  Specified starting materials are b -chloro propionic acid esters such as the ethyl, isopropyl or butyl ester, b -phenyl-b -chloro-propionic acid esters, b -furyl-b -chloro-propionic acid esters, b -chloro-butyric acid esters and b -chloro-isobutyric acid esters.  The corresponding bromine compounds may also be used.  The tertiary amines may contain 3-30 carbon atoms, preferably 3-9 carbon atoms, those specified being trimethylamine, triethylamine, tripropylamine, triisopropylamine, tributylamine and trioctylamine. The process may be effected in the presence or absence of water or an organic solvent and preferably at 70-100 DEG  C., and a small proportion of a polymerization inhibitor such as hydroquinone.  In examples: (1) a mixture of b -chloropropionic acid ethyl ester, triethylamine, water, and a little hydroquinone is heated in a reflux apparatus at 80 DEG  C. and the mixture treated for the isolation of acrylic acid ethyl ester which is finally distilled from the mixture treated for the isolation of acrylic acid propylamine may be used instead of triethylamine; (2) acrylic acid isopropyl ester is obtained by treating a mixture of b -chloropropionic acid isopropyl ester, triethylamine (or tributylamine), water and a small amount of hydroquinone; (3) acrylic acid butyl ester is obtained by treating b -chloropropionic acid butyl ester with triethylamine as in (1); (4) and (5) the ester of b -chloropropionic acid with 2 : 6 : 8-trimethyl nonyl-4-ol and cyclohexanol respectively are heated in a reflux apparatus at about 90 DEG  C. with a mixture of triethylamine, water, and a small amount of hydroquinone to yield the corresponding acrylic acid esters; (6) a mixture of b -chloro-propionic acid ethyl ester, triethylamine, sodium hydroxide solution of 30 per cent strength and a small amount of hydroquinone are heated in a reflux apparatus at about 80 DEG  C. to yield acrylic acid ethyl ester; (7) a mixture of b -chloro-a -methyl-propionic acid butyl ester, triethylamine, water and a small amount of hydroquinone is heated in a reflux apparatus at 80-90 DEG  C. to yield methacrylic acid butyl ester.
Patent GB-1454449-A (GB)
Title: Information storage system and method
IPC: G03B21/11
Filed: 1974-06-14
Abstract: 1454449 Film processing apparatus AMERICAN VIDEONETICS CORP 14 June 1974 [27 June 1973] 26515/74 Heading G2X A method of recording images of documents on film comprises the steps of forming an image of a document at a predetermined location on a first film at a recording station, moving the first film from the recording station to a transfer station to position the image formed on the film at the transfer station, providing an image receiving film capable of storing a plurality of images at different locations thereon, moving the image receiving film independently of the first film along a second path including the transfer station, whereby the image recorded on the first film can be aligned with any desired location on the image receiving film at the transfer station, and transferring the image from the first film to the image receiving film at the transfer station. As shown a microfilm 22 is exposed through lens e.g. to a document. The film is then transported to position the latent image at a transfer station 48. An image receiving film 27 is moved transversely relative to film 22 between spools 25 and 26 by a capstan 24 driven by motor 30. The motor is controlled by a sensor unit 113 which reads information on the edge of film 27, a counter 112 and a logic network 115, so that the desired area of film 27 on to which the image is to be transferred can be selected. This area is moved to a processing station where activator fluid is applied and then to the transfer station 48. The receiving film 27 and the latent image area of film 22 are then pressed into contact by rotating an eccentric 32 Fig. 5 which pushes up an arm 33 carrying pad 34. This pad has a sloping surface and co-operates with pad 69 to gradually press the films together so that no air bubbles are trapped. Developer in the microfilm is activated to develop a negative image and transfer a positive image to receiving film 27. This may then be moved back to the processing station to be washed and dried.
Patent GB-824678-A (GB)
Title: Multi-cavity cartridge for a filter-dehydrator
IPC: B01D39/14
Filed: 1956-08-30
Abstract: 824,678. Filters. BOWSER Inc. Aug. 30, 1956 [Sept. 6, 1955], No. 26556/56. Class 46. A filter cartridge 95 is made from sections of low density fibrous material 97 provided with a central opening and sections of high density fibrous material 99 provided with a central opening larger than that of the sections 97. The sections are stacked alternately and compressed so that the sections form a continuous inner filtering surface by the sections 97 contacting one another and an outer coalescing surface where the sections 97 clamped between two sections 99 have substantially the same density as these sections. The clamped sections are held by a cotton or knitted sleeve 111. The sections 97 are preferably cut from two inch thick fibre glass slab of one-half pound per cu. ft. density and the sections 99 from five-eights inch fibre glass slab of eight pound per cu. ft. density, a seven foot stack being compressed to approximately three feet. The cartridge is provided with a nipple 57 for the liquid to be treated and is surrounded by cage 71 and a sleeve constructed of an upper part 85 impervious to water and a lower part 87 pervious water. Contaminated liquid entering through the nipple 57 is filtered by the inner section and coalescing of the water droplets occur on passing through the outer section, sleeve and cage, the water droplets fall and then pass through the lower section 87 where they are removed.
Patent GB-489748-A (GB)
Title: Improvements in or relating to machines for staking, softening and similarly treating hides, skins, leather and the like
IPC: C14B1/40
Filed: 1937-02-02
Abstract: 489,748. Leather - working machines. TURNER TANNING MACHINERY CO., Ltd., and SCHETTLER, C. A. Feb. 2, 1937, No. 26604. Divided out of 489,711. [Class 76] A machine, of the type in which leather is staked or softened by means of reciprocating gripping jaws which close on the work on one stroke and open on the reverse stroke, is provided with a work clamp, automatic means for opening and closing the clamp and an operating member, e.g. a treadle 22, which when moved in one direction renders the opening and closing mechanism effective by action of an intermediate connection between the treadle and the clamp and when moved in the opposite direction opens the clamp and renders the said intermediate connection and the automatic opening and closing means wholly inoperative. In the machine shown a rearward extension of a spring-controlled clamp arm 38 is connected by a wire rope 56 passing over rolls 44a, 45 on a spring controlled lever 6, to a lever 46 adjustable for tensioning purposes on a shaft 47. A lever 50 also keyed to the shaft 47 carries a roll 51 which engages a cam surface 62 keyed to the treadle shaft 35 and operated by the treadle. When the treadle is depressed the lever 46 applies tension to the rope so that the lever 6 is moved to a position in which a roll 55 on the lever is engaged by a cam 55 which as it rotates effects the opening and closing of the clamp. When the treadle is released and rises under the action of a counterweight 68, the lever 46 moves to the left, the roll 55 moves out of contact with the cam 5 and the clamp remains in open position. The mechanism is described as applied to the machine described in Specification 489,711.
Patent GB-471451-A (GB)
Title: Improvements in controlling devices for electric drives for hosiery knitting machines
IPC: D04B15/94
Filed: 1936-10-01
Abstract: 471,451. Knitting- machines. SIEMENSSCHUCKERTWERKE AKT.-GES. Oct. 1, 1936, No. 26685. Convention date, Oct. 2, 1935. Addition to 386,833 and 399,758. [Class 74 (ii)] Driving-mechanism. -The hand-operated control lever 2, which according to the parent invention was normally retained within the range 61 of the cam - operated control lever 3 is now normally kept against a stop 7 beyond such range.
Patent GB-984224-A (GB)
Title: Timing mechanism
IPC: G04C23/16
Filed: 1961-07-24
Abstract: 984,224. Time alarm signals. INTERNATIONAL REGISTER CO. July 24,1961 [Aug. 17, 1960],No. 26751/61. Heading G3T. [Also in Division H2] An audible alarm interval timer is mounted on the framework 80 of an electric cooker time switch (see Division H2) and is opered by the same synchronous motor but is otherwise independent thereof. A knob on shaft 48 rotates gearing to set a cam (Figs. 17 and 18, not shown) to a position dependent upon the desired interval, after which interval the cam causes a reed to vibrate by allowing part of it to move into the magnetic field of the motor, in known manner. The interval is indicated by means of two dials 46 and 45 carried respectively on a shaft and a sleeve concentric therewith and geared to be driven in the ratio of 1:4. The low speed dial 46 has a quadrant removed (as shown) so that the high speed dial 45 is visible through a small window (Fig. 1, not shown) just above the shaft 48. The dial 45 is marked up to 60 minutes and after one revolution (clockwise) the dial 46 has moved through 90 degrees, becomes visible in the window and obscures dial 45. Dial 46 is calibrated from 1 to nearly 4 hours, as shown. Specification 897, 536 is referred to.
Patent GB-408524-A (GB)
Title: Improvements in and relating to electrically driven portable machines such as hand drills
IPC: B23B45/00
Filed: 1933-09-28
Abstract: 408,524. Portable electric drilling &c. machines. DUSS & BENDER SPEZIALFABRIK FUR ELEKTROWERKZEUGE GES., Neubulach, Wurtemberg, Germany. Sept. 28, 1933, No. 26758. Convention date, April 26. [Class 83 (iii).] In an electrically driven portable hand drill or like machine, a tool or holder therefor is adapted to be coupled selectively to one of a number of drive shafts (two in the embodiment described) 8, 9 connected by gear trains to the motor shaft 4, the drive shafts being arranged concentrically to the axis of the motor in a cage 7 rotatable about the said axis, the machine having a fixed opening 12 for the tool or holder, positioned so that on rotation of the cage any selected drive shaft can be moved into alignment with the opening so as to be coupled to the tool or holder (not shown). A gap 14 in the casing exposes the lower part of the rotatable cage enabling it to be manipulated by hand.
Patent GB-498075-A (GB)
Title: Improvements relating to siphon-discharge water-waste preventers
IPC: E03D1/12
Filed: 1937-10-05
Abstract: 498,075. Siphon discharge water - waste-preventers. LAW, J. B. Oct. 5, 1937, No. 26889. [Class 26] In an air-release siphon-discharge waterwaste-preventer of the kind in which the lower end 10 of the down pipe 7 from the cistern extends into a water-trap or seal and a valve in the down pipe effects the discharge, the water trap consists of a bowl 12 enclosed in a casing 11 open at its lower part to the discharge pipe 15. An air outlet pipe 22 connects the down pipe with the bottom of the casing 11 on the discharge pipe and contains the valve 16 which is held in its seat 19 by a spring 21 and opened by a push-button 20. A leather diaphragm 24, between the button 20 and the push-rod 17 of the valve, prevents water escaping past the push-button.
Patent GB-1446111-A (GB)
Title: Electrophotographic sensitive plate
IPC: G03G5/043
Filed: 1974-06-18
Abstract: 1446111 Electro-photographic materials MINOLTA CAMERA KK 18 June 1974 [26 June 1973] 26980/74 Heading G2C An electro-photographic member comprises an Al support which is anodically oxidized to produce a layer comprising a non-porous barrier portion in contact with the support and a porous portion 1 - 10 microns thick, an inorganic photo-conductive layer of amorphous Se less than 1 micron thick and an organic photo-conductive layer 10 to 30 microns thick of polyvinylcarbazole. The barrier acts as a rectifying layer allowing charge transfer to the support. The members retain less residual potential than prior art members. The oxide layer with its 2 portions may be produced by anodizing Al in a bath containing 3-11 per cent sulphuric acid.
Patent GB-387627-A (GB)
Title: Improvements in or relating to furniture adaptable for sleeping purposes
IPC: A47C17/46
Filed: 1932-09-29
Abstract: 387,627. Bedsteads. MORRON, H., 13, Gorbals Lane, Glasgow. Sept. 29, 1932, No. 27011. [Class 52 (ii).] A cabinet bed comprises a selfcontained cabinet 1, Fig. 1, constituting a wardrobe or the like, which is enclosed on all sides, except for the doors 5, and which is hinged along one edge to a bed container 3. As shown in sectional elevation in Fig. 1, the bed comprises a mattress H and an angle-iron frame 8 which latter is mounted on hinges 9 to a bottom ledge 10 of the container 3. The frame 8 is held in the inoperative position by a pair of hinged catches 15, and, when lowered, is supported at its outer end by a pair of pivoted legs 12. The wardrobe portion or cabinet 1 is mounted on castors 4 and is adapted to be locked to the container 3 by hooks 13, 13a and eyes 14, 14a. The hooks and eyes may be replaced by, or used in conjunction with, interengaging dowel pins and sockets provided upon the two cabinets 1, 3.
Patent GB-888572-A (GB)
Title: Improvements in or relating to carton-closing machines
Inventor: OXBORROW BERNHARD HEWLETT
IPC: B65B51/12
Filed: 1959-08-07
Abstract: 888,572. Endless conveyers. METAL BOX CO. Ltd. March 25, 1960 [Aug. 7, 1959], No. 27139/59. Class 78 (1). [Also in Group XVII] A packaging machine (see Group XVII) includes two chain conveyers having flights hinged to them for facilitating disengagement from the articles conveyed. One comprises a pair of chains 11 joined by bars 18 to some of which are hinged at 17 pusher plates 16 held in position to engage cartons 4 by springs 19. The cartons are pushed on to flights 27 of the second conveyer and as the chain 11 reverses, the plates 16 hinge back to clear the flights. They are restored by springs 19. The flights 27 are mounted on plates 28 pivoted at 29 to an endless chain 24. The flights are normally held in horizontal alignment by the plates travelling in vertical channels, but adjacent the top reversing pulley, the plates are freed and are tilted against springs 30 by a cam 47. The cartons then slide off on to a discharge shoot 44.
Patent GB-885182-A (GB)
Title: Improvements in gloves
Inventor: WADDINGTON GEOFFREY PARKER
IPC: A41D19/00
Filed: 1959-08-08
Abstract: 885,182. Gloves. WADDINGTON & SON Ltd., G. June 7, 1960 [Aug. 8, 1959], No. 27184/59. Drawings to Specification. Class 141 A leather glove has a lining of polyurethane foam, natural or synthetic cellular rubber &c. The glove may have an interlining of the cellular material and an inner lining of cotton or nylon stitched together at the tips of the fingers and thumb and along the side seam remote from the thumb. The lining assembly is attached to the outer layer by adhesive applied to the tips of the lining assembly and by stitching at the wrist.
Patent GB-444591-A (GB)
Title: The manufacture of tanning materials
IPC: C14C3/08
Filed: 1934-09-22
Abstract: Tanning-agents are prepared by adding to solutions containing ligninsulphonic acid, particularly to sulphite cellulose lye, a resinous product obtained by treating an aromatic hydroxy compound with sulphur and/or a sulphur halide.  Preferably, use is made of sulphite cellulose liquor freed from a part of its calcium and ferric salt content, and resinous products prepared under relatively mild conditions and not in an advanced stage of condensation.  The mixture may be treated with a reagent capable of linking organic nuclei, e.g. glyoxal or formaldehyde, or a reagent which yields formaldehyde such as paraformaldehyde or a p  methylol compound; this reaction may be effected at atmospheric or raised temperature and pressure in the presence or absence of an alkali hydroxide or a salt of an organic or weak inorganic acid. The products may be used alone or with other tanning materials, e.g. mineral salts or natural or synthetic tanning agents.  In the examples: (1) phenol is treated at 70 DEG  C. with sulphur dichloride, and the product is freed from residual hydrogen chloride by heating in vacuo or treatment with hot air; the product is then treated at atmospheric or raised temperature with sulphite liquor of 35 DEG  B<\>ae., and the mixture is diluted and weakly acidified; (2) a solution of crude cresol in benzene is treated with sulphur dichloride at 40--50 DEG  C., and the benzene is then evaporated; the product is dried and added at atmospheric or raised temperature to sulphite liquor of 35 DEG  B<\>ae., and the mixture is diluted and brought to an acidity of about pH 4; (3) a mixture of o-chlorophenol, sulphur and caustic soda solution is boiled under reflux, and the product is washed and then steam-distilled to remove unchanged chlorophenol; the purified product is treated with sulphite liquor of 24 DEG  B<\>ae., and the mixture is diluted and brought to an acidity of about pH 3.5; (4) crude cresol and sulphur dichloride are brought to reaction as in example 1, and the product is heated with formaldehyde and sulphite liquor of 35 DEG  B<\>ae.; (5) as in example 2, except that a lower proportion of sulphur dichloride is used in preparing the resin.
Patent GB-186939-A (GB)
Title: Improvements in disengaging couplings
IPC: F16D11/10
Filed: 1922-10-09
Abstract: 186,939. Bloch, P., and Steinegger, R. Oct. 8, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Clutches, claw; securing clutch members and toothed wheels on shafts.-In order to facilitate the sliding into mesh of gear-wheels and claw clutches, as used in change-speed mechanism for machine tools, motor-vehicles, lifting-appliances, &c., the ends of the teeth are rounded or bevelled, and one of the meshing elements is so secured to its shaft as to allow controlled rotary play to the extent of about half a tooth-pitch. As applied to a claw-clutch mechanism, Figs. 1 and 2, a shaft a drives a shaft b through bevel wheels c<1>, c<2> and clutch teeth d, e, with pointed ends. The clutch member f is slidably secured to the shaft b by spring-pressed pointed pins h engaging V-grooves therein, the rotary play being limited by shoulders b', e<1> on the parts b, f respectively. The pins h may be acted on by co-axial compression springs or may be screwed in segments h', Fig. 2, drawn together by tension springs h<2>. As shown in Fig. 3, a gear-wheel c<3> having bevelled or rounded teeth meshes with a wheel c<4> and is axially pressed by a spring k<1> in a casing k into contact with a pin h<20>, which is secured to the shaft b and engages a V-ended notch e<12> in the boss e<11> of the wheel.
Patent GB-535425-A (GB)
Title: An improved radio aerial
IPC: H01Q1/10
Filed: 1939-10-06
Abstract: 535,425. Aerials. DUCATI, A. C. Oct. 6, 1939, Nos. 27377 and 27378. Convention dates, Oct. 15, 1938 and Aug. 30, 1939. [Class 40 (v)] A wireless aerial is formed by a column 2 of mercury, or other metal in liquid form, contained in an insulating tube 1 and adjusted in length through a pressure gauge 9. The container 1 may take the form shown in Fig. 5, where the mercury occupies the annular space 24 between the outer tube 23 and an inner rod 25 of insulating material. In Fig. 7 the length of the two horizontal dipoles 38, 39 is adjusted through mercury sumps 33, 34 to which pressure is applied through a tube 32 forming part of a co-axial transmission line 30, the connecting pressure tube 37 being of insulating material. Fig. 9 shows the invention applied to an array 53, 54, 55 of short-wave aerials. The containing tube 1 may be made of alternate sections 57, 58 of conducting and insulating material as shown in Fig. 10.
Patent GB-1147216-A (GB)
Title: Stabilized polyamide compositions
IPC: C08K5/00
Filed: 1966-06-20
Abstract: 1,147,216. Copper salts of amino-acids and lactams. TOYO BOSEKI K.K. 20 June, 1966 [22 June, 1965; 4 Dec., 1965], No. 27387/66. Heading C2C. [Also in Division C3] A cupric salt of a C 5 -C 12  amino-acid or lactam may be prepared by heating a mixture of the acid or lactam and a copper salt to 100- 140‹ C. Copper salts specified are the sulphate, chloride, bromide, acetate, stearate, and salicylate. Acids and lactams specified are #- aminocaproic acid, #-aminoenanthic acid, #-aminocaprylic acid, the lactams thereof and #-amino valeric acid. In Examples 2 and 5 the salts of #-aminocaproic acid with cupric acetate (2) and caprolactam with cupric chloride (5) are isolated by treatment with benzene.