baber/WOPTO huggingface dataset:
Patent GB-240058-A (GB)
Title: Improvements relating to apparatus for spinning, doubling and twisting yarns or threads of fibrous substances
IPC: D01H1/02
Filed: 1925-02-05
Abstract: 240,058. Whitehead, T. Feb. 5, 1925. Spindle apparatus; spindle-driving apparatus; stop-apparatus, non-automatic. - Relates to spindle apparatus for spinning, doubling, and twisting machines of the kind in which an independently driven spindle passes through an independently driven tube or the like which carries at its upper end a ring and traveller. The spindle A is supported by a disc F rotatably supported thereon between fixed collars f and engaging the inner surface of the tube or carrier B, which is supported by a ring b<7>. A felt lubricating washer f<1> may be mounted on the disc. In a modification, a ball bearing may be provided in place of the disc. The carriers are driven at a constant speed by a cylinder b, and the spindles are driven at a variable speed by a cylinder a driven through cones a<1>, a<2> and a chain b<1> from the cylinder b. The gear ratio of the chain drive may be varied by change chainwheels, the tension of the chain being adjusted by a wheel on an adjustable arm b<5>. The belt a<3> is traversed along the cones by means of a rod a<11> operated by a cam a<4>, and the extent of the traverse is determined by a weighted rod a<17> which is connected to the belt-fork lever a<16> and is provided with a stepped platform engaged bv a lever e<1>. The rod a<11> is connected to a lever a<13> provided with a pin engaging a recess a<15> in the belt-fork lever. The lever e<1> is raised by the lifting-rail E and so freed from the steps of the rod a<17>, which is thereupon operated by the weight a<22> and moves the belt towards the large end of the pulley and allows the traverse thereof imparted by the rod a<11> to be increased to the maximum. The spindle brake-lever G, Fig. 6, is provided with prongs g which engage the upper and lower faces of the wharl and is moved about an edge g<2> in the bracket g<3>. Specification 230,340 is referred to.
Patent GB-886283-A (GB)
Title: Improvements in or relating to saw blades
IPC: C22C38/24
Filed: 1960-01-29
Abstract: A saw blade is made from a steel comprising .1,00 to.1,5%.C, .0,20 to.0,40%.Si, .0,25 to.0,50%.Mn, .3,00 to.5,00%.Cr, .1,00 to.2,00%.W, .1,00 to.2,00%.Mo, .2,00 to.4,00%.V, remainder except for impurities Fe.  The blade may have a hardness in excess of Rockwell "C" 45.  The steel is hardened by (1) heat-treating above 1500 DEG F. and cooling, followed by (2) tempering below 1200 DEG C., preferably (1) at 1600 DEG F. to 2200 DEG F. and (2) between 950 DEG F. and 1150 DEG F.
Patent GB-901567-A (GB)
Title: Improvements in or relating to the production of acyloxyboron compounds
IPC: C07F5/02
Filed: 1961-01-27
Abstract: Acyloxyboron compounds are made by heating a mixture of a boron ester of the formula BRx(OR)3-x (where the radicals R which may be the same or different, each represent an alkyl group of 1 to 5 carbon atoms or an aryl group, and x is 0, 1 or 2) with a carboxylic anhydride, preferably having the formula (R1CO)2O (where radicals R1, which may be the same or different, each represent an alkyl group of 1 to 5 carbon atoms, which may be halogenated).  A carboxylic ester is produced as a by-product and can be separated by distillation.  The reaction is preferably effected under reflux conditions permitting escape of the ester by-product.  Suitable boron esters and carboxylic anhydrides are specified.  In examples isopropyl borate and acetic anhydride yield oxybis(diacetoxyborane) and isopropyl acetate; isopropyl borate and propionic anhydride yield tripropionoxyborane and propionic anhydride; ethyldiethoxyborane and acetic anhydride yield ethyl acetate and ethyldiacetoxyborane; dipropyl ethoxyborane and acetic anhydride yield ethyl acetate and dipropylacetoxyborane.
Patent GB-111406-A (GB)
Title: Improvements in and relating to Clutches.
Inventor: LINDSAY WILLIAM HENRY
IPC: F16D13/30
Filed: 1917-03-06
Abstract: 111,406. Lindsay, W. H. March 6, 1917. Clutches, friction. - In double-acting cone friction clutches for use in motor-driven vehicles and boats, the driving-shaft 1 is secured to a fly-wheel or casing 3 with cone surfaces 3b, 3c against which bear coils or bands 5, 5a engaged with the casing at both ends. Inner cones 4, 4a, feather on the driven shaft 2, are operated by levers 20, 21 fulcrumed on the cone 4a and connected to the cone 4 by belts 19. The levers are connected to the cylinder 24 of a dash-pot, the piston 29 of which is operated by an adjustable spring 34 and by a pedal lever 7. A non- return valve 32 allows admission of air during engagement of the clutch, the escape of air during the engaging-operation being regulated by a screw 42 closing an orifice 41. The dash-pot may be omitted and additional pressure may be given to the clutch surfaces by lifting the pedal 7.
Patent GB-664601-A (GB)
Title: Improvements in electrolysis
Inventor: SHAW HARRY
IPC: C25B9/14
Filed: 1949-02-07
Abstract: 664,601. Electrolytic cells. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 20, 1950 [Feb. 7, 1949], No. 3308/49. Addition to 627,349. Class 41. The electrolytic cell as described and claimed in the parent Specification is provided with a flexible cover 1 for the cell, the anode-supporting rods 7 passing through holes in the cover and being sealed thereto. As shown, the rods 7 are formed with shoulders on which rest joint-rings 8 engaged by the under-surface of the cover 1, similar joint-rings being located between the upper surface of the cover and metal coverdomes 11. The assembly is held tight by means of nuts 12 screwed into rods 13 fixed in the rods 7. The cover 1 may be corrugated near the rods 7, as shown. In a modification the jointrings are held in place by rings screwing on to the threaded ends of the anode-supporting rods.
Patent GB-849180-A (GB)
Title: An improved tray or container for use in packing comestibles
IPC: B65D25/00
Filed: 1959-01-30
Abstract: 849,180. Trays for eggs and fruit. MAZZI, A., and MAZZI, T., [trading as MAZZI, F., [Firm of]]. Jan. 30, 1959 [Feb. 1, 1958; March 1, 1958], No. 3390/59. Class 18. An octagonal tray moulded from polythene has hexagonal cells the walls of which are corrugated at 16 to provide ventilation. The base 19 of each cell has flutes 22 and an apertured projection 20 ; the projections may be longer at the centre of the tray so that when placed in a case 21, Fig. 5, the tray base becomes concave. The cells of each row are separated by saddles 15 and each row is separated from the adjacent row by transversely corrugated spacer strips 14. The parts 14, 15 are thicker than the walls of the cells. The edge of the tray carries a corrugated packing strip 25 and a groove 24, as described in Specification 815,204, facilitates the bending of the strip 25 to grip the edge of the case 21.
Patent GB-1032085-A (GB)
Title: Variable frequency generator
IPC: H03K3/282
Filed: 1965-01-26
Abstract: 1,032,085. Transistor oscillator circuits. UNITED STATES STEEL CORPORATION. Jan. 26, 1965 [Feb. 3, 1964], No. 3421/65. Heading H3T. A variable frequency transistor multivibrator has its cross-coupling capacitors shunted by ganged resistors so that the oscillation frequency may be varied and has means for switching in alternative pairs of couplings to change the range of frequency adjustment. As shown, the coupling capacitors are each shunted by two variable resistors, one for normal changes of frequency and one for correcting errors due to circuit changes.
Patent GB-687539-A (GB)
Title: Improvements in or relating to fishing reels
Inventor: HARDY LAURENCE ROBERT
IPC: A01K89/016
Filed: 1951-02-13
Abstract: 687,539. Fishing reels. HARDY BROS. (ALNWICK), Ltd. Feb. 13, 1951, No. 3482/51. Class 48. In a fishing reel of the rotatable drum type having reversible spring pawl mechanism adapted to provide alternative right and left-hand check, the spring pawl 1 mechanism comprises two pawls 4 arranged to cooperate with a single ratchet wheel 10 and adapted to be employed alternatively or in conjunction with one another for either right or left-hand check action. Each pawl 4 comprises a substantially triangular element with a slot 4a extending inwardly from one side to engage a headed pivot pin 5, a spring 6 of the hairpin type being mounted on a headed fulcrum 7 to maintain the pawl in either the operative or inoperative position in which it is put. The pawls 4 are so shaped that, when the corner 4b engages the ratchet wheel, the rounded end 4c of the side 4d that engages the spring 6 is at a less radial distance from the pivotal axis than is the other corner 4e, thereby providing a check action in one direction of motion. A check action in the opposite direction is obtained by sliding the pawl laterally to remove it, and then turning it over before replacing it. The tension of the springs may be regulated by a transverse bridge piece 8 which bears upon the free ends 6a of the springs and is adjustable by a screw provided with an operating knob 9a.
Patent GB-835284-A (GB)
Title: Improvements in and relating to a water operated power generator
IPC: F03B17/00
Filed: 1957-02-01
Abstract: 835,284. Hydraulic generation of power. LEONARD, F. Jan. 29, 1958 [Feb. 1, 1957], No. 3489/57. Class 69 (1). A device for producing energy comprises a number of tubular beams A, each beam containing water capable of flowing from one end of the beam to the other to act as a counterbalance, the said beams being carried in cradles B which are pivoted at their centres so as to tilt on centre supports F when acted on by a moving water container G mounted on each end of each cradle B, the arrangement being such that when these moving containers rise they open valves N in fixed water containers L by means of valve lifting pins N<SP>1</SP> and receive charges of water which overcome the said counterbalances, thereby restoring the beams to the horizontal, whereupon the counterbalances assist the loaded descending containers to press on connecting- rods P engaging crank-pins Q on chain wheels R to drive a freewheel T mounted on a shaft U and wherein at the end of each working stroke the valves N of the moving water containers G are opened by the valve lifting-pins N<SP>1</SP> of the fixed water containers L, the latter containers receiving the charge ready to repeat the operation. A flywheel V keeps the shaft turning whilst the moving containers G are filling and overcoming the opposing counterbalances. A centrifugal pump W is mounted on the shaft U. Each connecting-rod P is provided with a vertical slot Y in which the crank-pin Q idles. At the end of each stroke water from the lowest containers runs to the pump W along a pipe Z and thence by a pipe Z<SP>1</SP> to one of the top fixed containers L. A pipe Z2 connects the top fixed containers L. Superimposed on this pipe is a compensating float chamber Y' connected to a reserve supply of water so that a water level is kept up which will be sufficient to supply the needs of one container for each working stroke.
Patent GB-732152-A (GB)
Title: Improvements connected with lifting mechanism for association with tractors
IPC: A01D87/00
Filed: 1953-02-07
Abstract: 732,152. Tractor load-handling attachments. ASKAM, J. F. Feb. 8, 1954 [Feb. 7, 1953; June 4, 1953; Ang. 18, 1953], Nos. 3502/53, 15382/53 and 22711/53. Class 78 (3). Lifting mechanism for tractors comprises booms 16 pivotally connected intermediate their ends at 17 to the draft links 9 and pivotally connected to .the tractor through a compression strut or struts 12 at points forward of the pivotal connections 17. The draft links are pivoted to the tractor and are raised by power-operated arms 4 through a pair of pivoted rods 7. Lateral swinging of the draft link is limited by a member 9a. Each boom at one end is substantially universally mounted by means of a vertical pivot 15 extending from a spindle 14 at the base of a frame 12. A bifurcated bracket 12a on the frame is pivoted to the differential housing. To prevent the load from pivoting when being raised a boom 20 extends from an extension 19 on the lifting tool to a pivot 13 on the bracket 12a.
Patent GB-176223-A (GB)
Title: Improvements in and relating to means for producing steam in bakers' ovens
IPC: A21B1/08
Filed: 1921-01-29
Abstract: 176,223. Read, A. F., and Read, H. N. Jan. 29, 1921. Steam, supplying to ovens. - Steaming-apparatus for bakers' ovens comprises a metal container which, to increase the heatabsorbing surface, is provided with a number of open-ended tubes a, fitted through the body and firmly fixed to the sides, which are perforated to receive them. The upper part of the container has a filling-hole surrounded by a tube b, over which is fitted a hollow cap c, perforated at d for the escape of steam. A modification is described in which the water circulates through the tubes, the heated gases passing round the spaces between the tubes. In a further modification, separate series of tubes are utilized for the circulation of water and heated gases respectively. The tubes may be replaced by slots extending through the container. The cap c may be e,ither screwed on to the tube b or fixed thereto by a bayonet-joint, or it may be non- detachable, in which case a separate filling-hole and cover are provided in the top of the tank.
Patent GB-187902-A (GB)
Title: Improvements relating to the manufacture of handles for metallic bath tubs and other hollow-ware articles
IPC: B21D53/38
Filed: 1922-02-08
Abstract: 187,902. Wood, W. Feb. 8, 1922. Handles.-Handles for baths and other hollowware articles are formed by fluting the centre portion b of a flat-bar, longitudinally twisting the flat ends c through a right angle, and finally bending the handle into arched shape, all the operations being performed in the cold state. The twisting of the ends may be effected after the bending operation.
Patent GB-498509-A (GB)
Title: Improvements in or relating to fuel for internal combustion engines
IPC: C10L1/30
Filed: 1937-04-08
Abstract: An anti-detonant agent for gasoline-containing motor fuels is composed mainly or entirely of a mixture of lead diethyl-dimethyl, lead methyl-triethyl, and lead ethyl-trimethyl; organic halides, lead tetra-methyl and/or lead tetra-ethyl may be added.  The agent may be mixed with the liquid fuel or injected into the intake manifold. Preferred mixtures are: (1) 45 vol. of lead dimethyl-diethyl, 30 vol. of lead methyl-triethyl, and 25 vol. of lead ethyl-trimethyl; (2) 63 vol. of (1) mixed with 23 vol. of ethylene dibromide and 14 vol. of ethylene dichloride; (3) 40 vol. of lead dimethyl-diethyl, 27 vol. of lead methyl-triethyl, 23 vol. of lead ethyl-trimethyl, 6 vol. of lead tetraethyl, and 4 vol. of lead tetramethyl.  Suitably 4,5 cc. is added to each U.S.A. gallon of fuel.  Fuels specified are gasoline, gasoline-alcohol, and gasoline-benzene.  The doped fuel is stated substantially to inhibit knocking during uneven fuel distribution in multicylinder engines.  The Specification refers to the following anti-detonants also; lead trimethyl propyl, triethyl propyl, diethyl dipropyl, ethyl tripropyl, tetrapropyl, and diethyl diisopropyl.
Patent GB-391274-A (GB)
Title: Automatic fire arms
IPC: F41A17/40
Filed: 1932-02-08
Abstract: 391,274. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST v. BRNE and STALLER, K., 7, U Lazaretu, Brunn, Czecho-Slovakia. Feb. 8, 1932, No. 3752. [Class 92 (ii).] Relates to belt-fed guns in which a stop device controlled by the cartridges in the belt acts to retain the breech block in the open position if a cartridge is missing from the belt or the end of the belt is reached. According to the invention, the stop device x is provided with a locking device 80, 83 to prevent movement of the stop device into the retaining position until the parts of the gun are in position for inserting a fresh cartridge. The invention is shown applied to a recoiling barrel gun with a tilting breech block 10 controlled by a slide 11 operated by an accelerator 12 on the barrel extension 6. The stop device comprises a vertical slide x which is normally pressed upwardly against the underside of the cartridges in the belt 30 by a spring 72. If a cartridge is missing from the belt, the stop rises and a projection 67 thereon lies in the path of a projection 68 on the slide 11 and holds the breech open. To permit the rearward movement of the slide 11, and prevent the lift of the slide x until the barrel has returned to its forward position of rest, a projection 80 on the slide x runs in. a groove 83 in the barrel extension, the groove being enlarged at 86 to allow the slide to rise only when the barrel has gone forward. The slide x has a projection 90 which serves to eject the cartridge case.
Patent GB-524761-A (GB)
Title: Improvements relating to window, door and like fastenings
IPC: E05C3/04
Filed: 1939-02-07
Abstract: 524,761. Fastenings. ALLART. Ltd., G., and ALLART, G. Feb. 7, 1939, No. 3941. [Class 44] A pivoted fastener member is held in its fastening and release positions by a catch comprising a helical spring a<3> and roller a<4> in a fixed housing a<2>, the roller having its axis parallel to the pivotal axis c<1> of the member and being adapted to engage one or other of two recesses a<6> in the pivoted member at its pivoted end, the recesses being separated by a cam surface a<5> over which the roller passes. A stop is also provided to limit movement of the pivoted member. Fig. 5 shows the invention applied to a hasp fastening in which an arm c is adapted to be swung into engagement with a fixed hook d, a spring-loaded slider e engaging behind the shoulder of the hook. A shoulder all on member c limits upward movement. The Specification also describes the application of the invention to a sash fastener and to the lever carrying the usual crush-bar of a panic bolt.
Patent GB-234416-A (GB)
Title: Improvements in and relating to electrical valve amplifiers
IPC: H01F21/12
Filed: 1923-11-14
Abstract: 234,416. Priess, W. H. Nov. 14,1923. Thermionic amplificrs.-Transformers for radiofrequency valve amplifiers are arranged to permit variation of their effective frequency range. As shown in Fig. 1 the primary and secondary coils P, S are each divided into sections 10 .. 12, 13- .. 15 which may be connected in circuit by means of simultaneously-operated switch arms 7, 8 moving over contact studs 1 .. 3, 4 .. 6. For the lowest band of frequencies, all the sections. are in circuit, whilst for an intermediate band, the coils 12, 15 are cut out, and for the highest band of frequencies only the sections 10, 13 are in circuit. The frequency bands may overlap or not. The sections 12, 15 may enclose an iron core. Several such transformers mav be employed in a multi-valve set as in Specification 234,023. and their receptivity bands may be adjusted simultaneously. In a modified transformer shown in Fig. 2, the primary coil P is located at one end of the larger secondary coil S, one or other of the coils being connected to a condenser C' by which the receptivity band may be varied. The end of the secondarv coil remote from the primary is connected to the grid of a valve. In multi-valve sets, the condensers C<7> may be simultaneously operated. Reference has been directed by the Comptroller to Specification 3947/11.
Patent GB-823738-A (GB)
Title: Electric regulator
IPC: H02P9/22
Filed: 1957-02-05
Abstract: An iron-nickel alloy containing 30% nickel is used to effect temperature compensation in a carbon pile regulator by incorporating it in the magnetic circuit, its magnetic permeability falling off from a maximum at -20 DEG F. to zero at 130 DEG F.
Patent GB-651415-A (GB)
Title: Improvements in roving spools
IPC: B65H75/14
Filed: 1948-02-11
Abstract: 651,415. Spools. LIGHTBODY, R. M. Feb. 11, 1948, No. 3978. Convention date. May 3. 1945. [Class 120(iii)] A roving spool comprising a longitudinal tubular barrel, heads having guides on the inner sides thereof for entering the ends of the barrel to locate the heads concentrically relative to the barrel, and a spring within the barrel arranged to hold yieldingly the heads against opposite ends of the barrel is characterized by hook members extending through the heads, and means on the heads releasably engageable with the hook members for holding them against inward movement relatively to the heads. As shown, heads 2 which may be of metal, wood, plastic, &c., are attached to guides 4 having flanges 6, by means of rivets, screws &c. Trunnion members 10, each having a collar 14 and a hook 16 are provided and the heads are yieldingly held against the barrel 28 by a spring 18 having end portions 20 which engage the hooks 16. Locking plates 22 are provided which, preferably, have curving outer sides and which have radial slots 24 leading into sockets 26 which receive the collars 14 of the members 10.
Patent GB-589572-A (GB)
Title: Improvements in methods of making dies for stamping sheet metal
IPC: B22C7/00
Filed: 1945-02-16
Abstract: 589,572. Stamping; patterns. SOLAR AIRCRAFT CO. Feb. 16, 1945, No. 3979. Convention date, Feb. 23, 1944. [Classes 83 (i) and 83 (iv)] Preliminary shaping-dies are made front finishing-dies by shaping a flexible sheet in the finishing-die, flattening it to reduce its depth and using the sheet to form a plaster mould from which a sand mould is prepared. A wax sheet 12 reinforced by cheese cloth on the bias is shaped in the finishing die and then flattened by hand without altering the surface area of the pattern. It is stiffened by a plaster backing 19 and then encased and used as a mould for casing a pattern 11 from which the preliminary die may be cast.
Patent GB-902682-A (GB)
Title: Process for the manufacture of fluorethylenes
IPC: C07C17/269
Filed: 1959-02-04
Abstract: <PICT:0902682/III/1> <PICT:0902682/III/2> <PICT:0902682/III/3> <PICT:0902682/III/4> <PICT:0902682/III/5> A chemical reactor for the production of fluorinated ethylenes (see Group IV(b) ) has a reaction zone which is slit-shaped.  In the forms of reactor shown, Fig. 1: the tube a is concentric with tube b, forming reaction zone d; c is a heating jacket.  The apparatus may be of any cross-section, e.g. circular (Fig. 2), rectangular (Fig. 3) or elliptical; or the reaction zone may be on one side of the inlet tube only, as in Figs. 4 and 5. Specifications 723,715 and 823,998 are referred to.ALSO:<PICT:0902682/IV (b)/1> <PICT:0902682/IV (b)/2> Fluorinated ethylenes are prepared by pyrolysing a compound RCF2Cl, where R is hydrogen, methyl, or halomethyl containing at least one hydrogen atom, in a reaction zone which has a slit-shaped cross-section, and one wall of which is heated, and the opposite wall is cooled by the gaseous starting material flowing along the outer surface of the wall before it enters the reaction zone.  In the suitable forms of apparatus shown, the tube a (Fig. 1), which may be of any cross-section, e.g. circular, elliptical or rectangular, is concentric with tube b, which is heated by jacket c; the reaction zone is the space d; or the reaction zone may be on one side of the inlet tube only, as in Fig. 4.  A dehydrohalogenation catalyst, such as a platinum metal or an alloy thereof may be used.  Specified reactions are the conversion of CHF2Cl to CF2:CF2 at 650-900 DEG C., of CH3CF2Cl to CH2:CF2 at 650-900 DEG C., of CHCl2CF2Cl to CCl2:CF2 at 200-600 DEG C., of CHF2CF2Cl to CF2:CF2 at 600-1000 DEG C., and of CHFClCF2Cl to CFCl:CF2.  Specifications 723,715 and 823,998 are referred to.
Patent GB-176228-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B60P1/28
Filed: 1921-02-03
Abstract: 176,228. Wright, W., and Wright, W. E., (trading as Wright & Son, W.). Feb. 3,1921. Tipping-wagons.-In motor vehicles having tipping-bodies mounted at or near the point of balance, fastening-means for the body 1 comprises a bar 6 having cranked ends 7 passing through lugs 8 on the frame 2 and extending over end-pieces 9 projecting from the body, the bar being kept down by gravity. A headed bolt 11 is adapted to be passed through lugs 10 over the top of the beams 4 to lock the body.