baber/WOPTO huggingface dataset:
Patent GB-503283-A (GB)
Title: Spindle bearing for spinning and doubling machines
IPC: D01H7/04
Filed: 1938-04-19
Abstract: 503,283. Spinning spindle bearings. HAMEL E. April 19, 1938, No 11723. [Class 12 (i)] A spinning spindle 10 is mounted in a tube 4 housec in a casing 1. A sleeve 5 is splined to the tube 4 and screws into the casing 1, a compression spring 8 being arranged between the sleeve 5 and a stop 9 on the tube 4 so that the tip 11 oi the spindle is pressed against a concave footstep bearing 2 in the bottom of the casing 1. The upper portion of the tube 4 has small clearance with the casing 1 and is provided with inclined slots 7 to permit oil that rises up the spindle 10 to flow out into the casing 1.
Patent GB-332224-A (GB)
Title: Improvements in or relating to variable speed gear
IPC: F16H3/06
Filed: 1929-04-16
Abstract: 332,224. Waller, E. T. April 16, 1929. Variable-speed worm gearing in which driving- worms b, c, d are moved laterally into mesh with a driven worm-wheel a is provided with means for rotating a loose worm before it is engaged with the worm-wheel, in changing speed. In the position shown, a clutch end o<1>, Fig. 1, on driving- shaft o lies in neutral inoperative position between the forward driving worms b, c, d and a reverse-driving worm #. When a carriage m has been moved to bring in, say, the middle speed, the clutch head o<1> engages a clutch recess o<2> in the worm c, which therefore drives the wheel a. Idle friction rollers q are spring-pressed so that both engage, and are rotated by a friction gear surface r<3>, Fig. 2, on the worm. These rollers engage also similar gear surfaces on the worms on either side, so that when one of the latter worms is moved into mesh with wheel a, it is already rotating, and the mesh is readily picked. up.
Patent GB-771845-A (GB)
Title: A sausage grilling and vending machine
Inventor: SCHECHTER RICHARD
IPC: G07F11/58
Filed: 1955-04-25
Abstract: 771,845. Cutting-machincs. AKTIEBOLAGET THORELL & PERSSON. April 25, 1955, No. 11922/55. Class 31 (1). [Also in Groups VI, XVIII, XXVIII and XXIX] In a machine for vending bread rolls, the rolls are carried in pockets of a belt 121 formed by gluing together two strips of paper 81 and 82 at intervals and, when a delivery drawer 91 is pushed in a knife 104, Fig. 8, cuts the belt between two rolls. The belt passes between two resilient stop flaps 86 pivotally mounted in brackets on the machine frame and between two feeding flaps 88 which are swingably mounted on brackets 89 attached to the delivery drawer 91. When the drawer is pulled out the conveyer belt is moved by the feeding flaps 88 a distance corresponding with one pocket and when the drawer is closed, the stop flaps 86 hold the belt firmly while the feeding flaps 88 slide over a roll which has been fed forwardly. As the drawer is closed, it moves an intermediate member 96 which is resiliently suspended on the drawer and the member 96 operates an air valve 97 which then supplies air to a cylinder 101 and draws the knife 104 downwardly to cut the belt so that one roll falls into the drawer. Simultaneously, the member 96 is depressed by means of a finger 106 so that the valve 97 is reversed by a spring. In a modification, the knife is carried by a spring on a spring-loaded pivotally-mounted arm and is moved to cut the belt by an electromagnet energized by means of a switchwhich is closed when the drawer is pushed in.
Patent GB-578067-A (GB)
Title: Improvements in or relating to cellulose derivatives
IPC: C08B15/04
Filed: 1944-06-23
Abstract: Carboxycellulose, which may be obtained by the oxidation of cellulose with periodic acid or lead tetra-acetate, is esterified by heating with an alcohol in the presence of an esterification catalyst.  An ester of carboxycellulose with a low boiling alcohol, prepared as above, may be treated at an elevated temperature with a higher boiling alcohol, whereby an exchange of alcohol radicals takes place and an ester of the higher alcohol obtained.  Suitable ester-exchange catalysts for this reaction are caustic alkalies, zinc chloride, ferric chloride, ammonium chloride, boron trifluoride, sulphonium iodides, hydrochloric acid, phosphoric acid and p-toluene sulphonic acid.  Examples are given of the preparation of carboxycellulose, and of (1) methyl ester of carboxycellulose containing 0.049 ester groups, by heating carboxycellulose containing 0.138 carboxyl group with methyl alcohol in the presence of sulphuric acid; (2) ethyl ester of carboxycellulose containing 0.060 ester group, by heating carboxycellulose containing 0.231 carboxyl group with ethyl alcohol in the presence of sulphuric acid; (3) n-propyl ester of carboxycellulose containing 0.050 ester group by heating carboxycellulose containing 0.321 carboxyl group with n-propyl alcohol in the presence of sulphuric acid; (4) methyl ester of carboxycellulose containing 0.40 ester group, by heating carboxycellulose containing 0.45 carboxyl group with methyl alcohol in the presence of hydrogen chloride gas; and (5) a mixed ester containing both methyl and butyl groups, by heating the methyl ester of carboxycellulose, obtained as described in examples (1) and (4), with butanol in the presence of sodium hydroxide.  The amounts of ester and carboxyl groups given above are calculated with respect to the glucose unit.  A large number of alcohols suitable for use in the process are specified.  The lowly esterified materials are, in general, insoluble in organic solvents, but where they contain free carboxyl groups they are partially or completely soluble in aqueous alkali.  The highly esterified materials are generally soluble in organic solvents and may also be soluble in aqueous alkali if sufficient free carboxyl groups are present.  The carboxycellulose esters are more stable than the carboxycellulose itself, and may be used for the production of filaments, films and moulding powders.
Patent GB-455558-A (GB)
Title: Improvements in the production of coke or semi-coke by carbonising coal-oil mixtures
IPC: C10B55/02
Filed: 1935-04-18
Abstract: In the carbonization of fluid coal-oil mixtures to obtain oils of low boiling point and coke an addition of pulverized coal is made to the coal-oil mixture immediately prior to or during the carbonization process.  A mixture comprising equal parts of finely-ground Greek lignite (50 per cent passing through a 50 I.M.M. mesh) and Persian fuel oil containing 10 per cent coal-tar pitch is charged into a tray which is placed in a carbonizing retort.  A further addition of coal pulverized so that 75 per cent passes through a 200 I.M.M. sieve and in amount equal to half of the mixture is then added by forced draught and the mixture is then carbonized.  Specifications 448,028, 448,029; 448,622, [Group XII], and 454,011 are referred to.
Patent GB-768331-A (GB)
Title: Improvements in or relating to a surgical device
IPC: A61F5/41
Filed: 1955-04-26
Abstract: A penile constrictor comprises a rubber band having one part of its circumference reinforced, so as to be relatively rigid, in order to bridge the urethra, and, at the opposite point of the circumference, an inwardly directed projection to exert pressure on the dorsal vein. Projections may be provided at points on the outer surface to locate additional rubber bands if increased pressure is necessary.
Patent GB-198535-A (GB)
Title: Device for insertion in leaky boiler tubes
IPC: F28F11/02
Filed: 1922-05-01
Abstract: 198,535. Hawthorn, Leslie, & Co., Ltd., R. & W., and Wyber, A. S. May 1, 1922. Repairing leaks.-A device for stopping a leaky boiler tube 2 comprises a tubular rod 7 carrying flexible washers 5 and provided at its outer end with an inclined nozzle 9 for deflecting the escaping steam which enters the tubular rod 2 intermediate with the members 5 at 8, away from the operator. When the stopper has been inserted in the tube 2, the pressure of the escaping fluid forces the flexible washers 5 against the interior surface of the tube 2, and the open end of the tube is then closed by a needle-valve 11.
Patent GB-630130-A (GB)
Title: Improvements in dental drill angle drives
IPC: A61C1/14
Filed: 1946-04-20
Abstract: 630,130. Dental drilling head angle drives. WILLHALM, O. G. April 20, 1946, No. 12124. Convention date, May 22, 1943. [Class 81 (ii)] A dental drilling head angle drive comprises essentially a journal drill bearing 4<SP>1</SP> forming a single unit with a nut 4 which is screwed into the front end of a housing 1 in the rear end of which is fixed a thrust ring 8 whereby the thrust exerted by the drill is transmitted to the thrust ring and thence to the rear end wall of the housing. The driving pinion 13 of a lower drive meshes with the pinion 7 of an upper drive 5, 7, 6. 7', 6', which rotates around the journal bearing 4<SP>1</SP>, the bushing-like extension of the upper drive ending in a collar 6 which bears against the thrust ring 8. The rear end 9 of a drill shank is coupled by the usual spring catch means to the upper drive.
Patent GB-1536485-A (GB)
Title: Bleaching articles
IPC: D06L3/06
Filed: 1976-03-26
Abstract: 1536485 Thickened bleach from dispenser PROCTER & GAMBLE CO 26 March 1976 [27 March 1975] 12233/76 Heading D1P A thickened chlorine bleach having a viscosity in the range 200 cps-100,000 cps is in releasable combination with a dispensing means for treatment of damp fabrics in a tumbler dryer. The chlorine bleach may be a hypochlorite, chlorinated trisodium phosphate, a chlorinated cyanuric acid derivative, a chlorinated hydantoin, a chlorosulphamide, a chloramine, chloramide, chloramine or chlorimide. The thickener may be CMC, a polyacrylamide, a colloidal or pyrogenic silica, a synthetic hydrophilic Laponite (R.T.M.) or smectite clay of particle size 0.025-50 microns, which may be added to an aqueous or solvent solution of the bleach e.g. to form a gel. Preferred smectite clays are those having an ion exchange capacity of at least 50 meq/100g which also provide a soft hand to the fabrics treated therewith. The composition may further include a distribution aid e.g. urea or a carboxylic acid. The dispensing means preferably comprises a pouch formed by heat-sealing a plastics sheet perforated or embossed to the point of perforation in a regular pattern to provide holes having an average diameter of from 0.05-3mm.
Patent GB-390332-A (GB)
Title: Improvements in or relating to liquid tight closures for use in connection with sub-aqueous vibration transmitting or receiving apparatus
IPC: G10K13/00
Filed: 1932-04-28
Abstract: 390,332. Diaphragms. FLORISSON, C. L., 11, Rue de Cronstadt, Courbevoie, Seine, and SOC. DE CONDENSATION ET D'APPLICATIONS MECANIQUES, 41, Rue de Clichy, Paris, both in France. April 28, 1932, No. 12281. Convention date, Dec. 18, 1931. [Class 40 (iv).] In vibration transmitting or receiving apparatus for subaqueous signalling and echo-sounding wherein a vibrating diaphragm 1 is clamped between packing rings 4, 5 to a casing 2, a liquidtight closure is obtained by screwing the ring 3<1> on to the casing against a non-rotatable heavy distance ring 6 bearing on the packing ring 5. The ring 6 is prevented from rotating by a key spanner engaging recesses 9 in the ring. Before screwing the ring 3<1> home a preliminary compression is exerted on the rings 4, 5 by a force applied to a plate 11.
Patent GB-779464-A (GB)
Title: Catalytic interesterification
IPC: C11C3/10
Filed: 1955-04-28
Abstract: A process for the catalytic interesterifi<PICT:0779464/III/1> cation of fatty esters, especially triglycerides, comprises treating the ester with a dispersion of alkali metal hydroxide in the presence of less than 0.02 per cent by weight of water, based on the total weight of fatty material present, the dispersion of the hydroxide catalyst being effected by mixing the ester with an aqueous solution of the hydroxide and then immediately removing water, preferably by exposing the mixture to a subatmospheric pressure suitably 5-25 mm. mercury so that little or none of the hydroxide is lost because of saponification.  The ester containing the dispersed hydroxide is then caused to flow through a reaction zone at 225-500 DEG F., preferably 300-350 DEG F., where the fatty acid residues become randomly distributed.  As shown melted crude lard is passed from tank 10 through heat exchanger 11, where the temperature is raised to 300-360 DEG F., and thence through pipe 12, where it is mixed with caustic soda solution of 30-50 DEG B<\>ae. from tank 14 in an amount up to 5 per cent, but preferably about 0.15-0.6 per cent.  The mixture then passes to the first drying chamber 13 where the bulk of the water present is removed at low pressure, consequently causing the temperature to fall.  The mixture is then reheated in the heat-exchanger 16 and passed to the second drying chamber 17, where substantially all the remainder of the water is removed, the mixture then passing to the reaction chamber 19, where the interesterification occurs at a temperature of 300-350 DEG F.  From there after 5-15 minutes the mixture passes through heat exchanger 20 to mixer 22, having just previously been mixed with a catalyst inactivator (usually water) from tank 21.  The aqueous solution may then be separated in a centrifuge (not shown) from the modified lard.
Patent GB-274597-A (GB)
Title: Improvements in engine clutches
IPC: F16D13/40
Filed: 1926-05-13
Abstract: 274,597. Weaver, W. A. May 13, 1926. Clutches, friction.-A friction clutch for light car engines comprises a single light metal plate a mounted on a short shaft b and enclosed within a casing d secured to the fly-wheel f. The plate is pressed against friction material e on the casing by a spring g located between the casing and a flange h on the shaft and adjusted by studs k. The shaft b has a bearing in the hub d<1> of the casing. In a modification the engaging-surfaces of the plate and of the casing are conical.
Patent GB-580307-A (GB)
Title: Improvements in or relating to bridles for rockets
IPC: F42B12/68
Filed: 1944-06-29
Abstract: 580,307. Rockets. SCHERMULY, C. D., SCHERMULY, A. J., and SCHERMULY, C. June 29, 1944, No. 12361. [Classes 9 (i), 9 (ii) and 77] A bridle for a rocket 1 comprises two rods 3 each secured at one end to a band 4 slidable on the rocket and each of the rods being slidable in a lug 2 secured to the rocket. A U-shaped member 6, having means, 7 for attaching a line thereto, is pivoted at 5 to the free ends of the rods 3. The U-shaped member may be replaced by a tail unit of the kind described in Specifications 573,480 and 573,485. The rods 3 may also be secured intermediate their ends to a second band 8, which is slidable on the rocket. Specification 503,325 also is referred to.
Patent GB-432264-A (GB)
Title: Improvements in and relating to fluid-operated electric switches
IPC: H01H33/30
Filed: 1935-04-24
Abstract: 432,264. High tension switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 24, 1935, No. 12369. Convention date, April 24, 1934. [Class 38 (v)] Pneumatic actuation.-A switch which is normally moved to the " off " position by a fluid pressure medium, which preferably serves also to extinguish the arc, is provided with additional means influenced by the switch position for admitting the pressure medium to the driving device automatically if the switch contacts start moving towards the " off " position under the influence of other forces. In the arrangement shown, when the switch is to be opened, compressed gas is led from a container 1 to the driving cylinder 3 and to the contact points 4 through a valve 2 which is normally operated by an electromagnetic device 5 controlled by hand or by an excess current relay. The switch is closed by admitting compressed gas to the cylinder 3 through a pipe 22, and is held in the closed position by a latch (not shown). If the switch fails to latch properly, or for any other reason moves towards the open position without the opening of the valve 2, a pin 12 on the switch rod 11 moves a lever 13 loosely pivoted about a shaft 14 to which a ratchet 15 and cam 16 are keyed. A pawl 19 on the lever 13 engages the ratchet and moves the cam into engagement with a roller 17 on a lever 8 to open a valve 9 and admit compressed gas to a cylinder 7 having a piston 10 connected to the valve 2 through a bellcrank arrangement 6. The arrangement is such that the valve 2 is opened before the actual separation of the contacts 4, so that the switching-out movement is completed by compressed gas in the normal manner. When the switch reaches the " off " position, the pawl, 19 is released by engagement with a stop 20 and a spring 21 returns the ratchet 15 and cam 16 to their inoperative position, allowing the valve 9 to close again. Instead of actuating the valve 9, the switch rod may be arranged to close a circuit for operating the valve 2 in the event of the switch rod moving towards the " off " position under abnormal conditions.
Patent GB-1032148-A (GB)
Title: Moistening device for adhesive strips
IPC: B43M11/00
Filed: 1965-03-24
Abstract: A device for moistening adhesive strips comprises a moistening element such as a brush 2 (see Figs. 1 and 2 not shown) or a sponge partly immersed in a vessel 1, a reservoir 3 for supplying water via a pipe 4 to the vessel 1 and a pressure-suction device such as bellows 5 associated with the reservoir such that water is forced from the reservoir into chamber 1 when the bellows are compressed and is sucked back when the bellows are opened and when the level in vessel 1 lies above the open end of pipe 4 thus the level of water in vessel 1 is maintained substantially constant.  The pipe 4 passes through a cork 7 in a filler hole and may be vertically adjusted to alter the level in vessel 1 the bellows 5 is preferably operated by a cam 6 actuated by the movement of the lever which feeds the strip.
Patent GB-796751-A (GB)
Title: Improvements in or relating to jewellery for personal wear
IPC: A44C7/00
Filed: 1956-04-24
Abstract: 796,751. Stud and socket fastenings. MAJEWICZ, H. A. April 24, 1956, No. 12455/56. Class 44 [Also in Groups V and VII] An article of jewellery comprises a rigid mounting with a projection having a narrower intermediate or shank portion and a flexible ornamental element which has an aperture for engaging and enclosing the projection with a snap action within a recess in the element to give a substantially rigid connection. An ear ring, Fig. 3, comprises a concave mounting 15b with a spherical projection 15a which engages with snap action in a recess in an ornamental synthetic resin plastic member 14. The plastic member may be made by injection moulding the plastic between two dies 11, 12. A mandrel 13 with a spherical head passes through an axial bore in the lower die 12 to produce the recess. The projection is shaped by turning, casting, or pressing metal or is provided by a number of sheet portions formed into a hollow body.
Patent GB-144455-A (GB)
Title: Improvements in and relating to the envelopes of airships
IPC: B64B1/58
Filed: 1919-05-17
Abstract: 144,455. Cave, T. R. Cave-Brown-. May 17, 1919. A.erastats. - The envelope of an airship comprises an inner main fabric portion and an outer detachable fabric cover adapted to cover the whole or part, of the envelope. The cover, of silk or other light fabric, is not a strength or gas-tight member but is proofed, coloured, and surfaced to provide protection against light and weather. It is secured so as to be attached or removed readily, and, when secured by adhesives, such as rubber solution, it may be secured only at the edges or over the whole surface, and the edges are serrated or frayed and overlapped. The cover may be in one piece, or in longitudinal sections, or in smaller sections.
Patent GB-724731-A (GB)
Title: Method of and apparatus for making a sand core or mold in which sand is blown into amold core box
IPC: B22C15/24
Filed: 1953-05-05
Abstract: 724,731. Moulding machines. FEDERAL FOUNDRY SUPPLY CO. May 5, 1953 [May 8, 1952], No. 12479/53. Class 83 (1). Sand is blown into a core or mould box by applying the blowing pressure in pulses until the box is filled. The apparatus comprises a sand-transfer chamber 14 mounted on arms 15, 16 rotatable about a column 12 into and out of position under a sand hopper 18, a cylinder 22 containing a piston 23 supporting a clamping table 24 which supports a mould or core box 25. The chamber has an inner perforated partition 30 and an agitator 35 motor driven through gearing 36, 37 and communicates through its filling opening 26 and filter 27 with a normally open valve 29, and with a pressure fluid inlet 33 controlled by a normally closed valve 44 when in the operative position. The spring-loaded inlet and exhaust valves are controlled by an electromagnetically operated valve 51, and a similar valve 50 controls a reduced fluid-pressure supply to the lift piston 23 through a small-bore conduit 56. The electrical circuit of the valve 51 contains a mercury switch 73, pressure actuated by fluid pressure through vents 42 in the vent plate 40 carried by the blow plate 38, Fig. 8. This switch is adjusted to "break" when the pressure in the chamber reaches a predetermined maximum, thereby opening the exhaust valve and closing the inlet valve, and to "make" when the pressure falls to a predetermined minimum, thereby supplying pressure fluid once more to the chamber. Alternatively a check-valve in the fluid pressure circuit to the exhaust valve 29 may prevent the valve from opening until the end of the blowing cycle, so that the pressure in the chamber is not reduced to atmospheric pressure each time the switch 73 opens. The reduced pressure through the restricted conduit 56 to the lift piston results in a safe rate. of travel of the clamping table, and the clamping of the box and the chamber against the cross-head 11 is achieved without shock. After the clamping position has been reached, pressure builds up in the cylinder 22, and operates a spring-loaded valve 100 to initiate connection of the main pressure-fluid supply to the cylinder. A switch 110 operated by a differential pressure-valve 112 may be connected in series with the solenoid of valve 51 so that said valve does not function until the box has been clamped in position, and a switch 121 may control the motor driving the sand agitator. The complete blowing cycle is controlled by a mercury switch 76 on a differential pressureoperated device 75. Opposing ends of the device are connected to points adjacent the air inlet 33 and the discharge end of the transfer chamber, the pressure differential maintaining the switch 76 open until, when the box is filled with sand, the resultant equalization of pressure within the chamber causes the switch 76 to close and the blowing cycle to be stopped thereby.
Patent GB-325748-A (GB)
Title: Improvements in and relating to detachable rubber heels
IPC: A43B21/48
Filed: 1929-04-23
Abstract: 325,748. Lee, P. April 23, 1929. Protectors, securing.-A detachable and interchangeable rubber heel comprises a heel pad 6 of rubber having a recess 7 therein corresponding in form to that of a plate 3 attached to the heel proper 2, a plate 8 carrying the counterparts 9 of dome fasteners 4, secured to or integral with the plate 3, being secured in the recess, which is of such depth that, when the pad 6 is applied to the heel proper, the rubber rib around the sides and back of the heel is compressed against the heel proper 2.
Patent GB-116417-A (GB)
Title: An Improved Combined Pencil Holder and Lighter.
Inventor: TAYLOR HARRY
IPC: B43K29/16
Filed: 1917-09-03
Abstract: 116,417. Taylor, H. Sept. 3, 1917. Pencil - holders. - The pencil 3 is carried by the lower part of the case 1 which may be fitted with a clip 13 for carrying it in the pocket. In the upper part of the case is a tube 4 packed or lined with material 5 adapted to absorb petrol &c. The plug 6 which screws into the top of the tube terminates with a piece of hardened steel 9, surrounding which is a fringe of asbestos threads &c. 10. A strip of pyrophoric metal 12 is attached to the outside of the case. Alternatively, the pyrophoric metal may be carried by the plug 6, a striking-surface being provided on the outside of the case,