baber/WOPTO huggingface dataset:
Patent GB-818488-A (GB)
Title: Loop spreading mechanism for sewing machines
IPC: D05B57/02
Filed: 1957-06-17
Abstract: 818,488. Sewing-machines. WILLCOX & GIBBS SEWING MACHINE CO. Ltd. (Willcox and Gibbs Sewing Machine Co.). June 17, 1957, No. 18969/57. Class 112 Stitch - forming devices, multipleneedle machines. The loop spreader means in a multiple-needle machine are carried on a bracket swingable between an operative and a retracted position and are held in the former position by a releasable latch. The bracket 23 is mounted to pivot around a looper shaft 12, which is oscillated and reciprocated by the main drive, and is retained in its operative, raised position by the engagement of a spring urged hook plate 31 with a pin 34 on the bracket. The plate 31 is pivoted to the frame 10 on an eccentric bolt 32 so that the operative position of the spreaders 27 can be adjusted. 'The carriers 26, in which the spreaders are adjustably mounted, are themselves adjustably supported on a channel section bar 38 slidably mounted on the bracket and reciprocated therein by means of a lever 44 pivoted at one end to the bar, the other end carrying a pin engaging a slotted collar 43 mounted on the looper shaft 12, the lever 44 being adjustably pivoted between its ends to the bracket 23. An adjustable bolt 49 bears on the side of the bracket to reduce sideplay. On the release of the latch the bracket may drop into its retracted position by its own weight, or the movement may be effected by springs or cams.
Patent GB-124232-A (GB)
Title: Improvements in Casting Metals and Apparatus therefor.
Inventor: AULD JAMES PATON
IPC: B22D1/00
Filed: 1917-12-21
Abstract: 124,232. Auld, J. P., and Tennick, P. M. Dec. 21, 1917. Casting processes; casting-machines; metalpouring; moulds. - The metal on its way from the lade to an ingot mould is cooled, for example, by passing through a water or air cooled rotary device. The cooling-device shown comprises a stationary water-cooled copper cone 2 arranged within a rotary receiving funnel 4 so as to leave a space 6 leading to an opening 9. The metal passes from the ladle through a nozzle 7 into a receiver 8 and then runs over the inside surface of the funnel 4 and gravitates towards the opening 9. In a modification, the metal passes through ports in a distributor and down a conical surface to the funnel 4. Air is forced through the distributor and the falling metal to cool it. The use of water or air under pressure may be dispensed with, and the speed of rotation of the funnel increased when the cooling is effected by radiation.
Patent GB-690503-A (GB)
Title: Improvements in or relating to electrical timing circuits employing thermionic valves
Inventor: BEAUFOY RAYMOND
IPC: H03K17/288
Filed: 1950-07-31
Abstract: 690,503. Road signals for controlling traffic. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. July 3, 1951 [July 31, 1950], No. 19094/50. Class 118 (ii) [Also in Group XL(c)] Fig. 1 shows a timer circuit which may be used to control traffic signals, contacts S1 being controlled by the passage of vehicles over a detector in a traffic lane possessing right of way whereby the timer is re-set after the passage of a vehicle, so that the timing period is extended. Contacts S2 are controlled so that the timer is ineffective until right of way to a traffic lane has been granted. With contact Sl open and contact S2 closed the timing period is started, capacitor C1 is charged from the H.T. supply until the grid potential of valve V2 rises to such a level that valve V2 conduits, relay RA operates and its contact RA1 changes over. The grid potential of valve VI is thus driven negative but commences to rise as capacitor Cl discharges through resistor R1 until valve V1 conducts, its anode potential falls and valve V2 is thus rendered non-conductive due to the negative voltage applied to its control grid via rectifier MRA and capacitor C4, relay RA is released and the timing period is terminated. The duration of the timing period may be varied by adjustment of resistor R4. Due to the cross coupling between valves V2 and V1 the' latter valve is rendered conductive and a trigger action thus occurs between valves V1 and V2 with a period dependent upon the time constant of network R1, C1. If however contacts S1 are closed by the passage of a vehicle over a detector in a traffic lane possessing right of way positive battery is applied to the grid of valve V2 and the relay RA remains operative. The timer is thus re-set and a new timing period may be initiated by opening contacts S1. If contacts S2 remain open the timer remains operative. In a modification shown in Fig. 2 at the commencement of a timing period capacitor C10 is charged by grid current flow in valve V3 and valve V4 is rendered conductive by reason of the positive battery applied to its grid via rectifier MRB. Relay RB thus operates, contacts RB1 are opened and the grid of valve V3 is driven negative to render the valve non-conductive until capacitor C10 has discharged sufficiently via resistor R10 when valve V3 conducts and oscillates by reason of the feedback via timed transformer TR. The amplitude of oscillations are sufficient to render valve V4 non- conducting so that relay RB is released and the timing period is terminated. The timing period may be varied by adjustment of potentiometer R13. If contact S1 is closed capacitor C10 is recharged from positive battery, oscillations are not produced or are terminated and relay RB remains released. The operation of the timer may also be prevented by the shorting of the grid circuit winding of transformer TR by closing contacts S2.
Patent GB-372149-A (GB)
Title: Improvements in and relating to spectacle frames
IPC: G02C1/06
Filed: 1931-07-02
Abstract: 372,149. Spectacles. KAHNE, E., 12, Mittelstrasse, Rathenow, Germany. July 2, 1931, No. 19139. Drawings to Specification. [Class 97 (i).] In a spectacle &c. frame consisting of a metal base partly or wholly covered with celluloid &c. a layer of Zapon varnish is provided between the metal and the celluloid. The celluloid may be transparent and uncoloured and colouring may be applied to the varnish layer to make the frames resemble tortoiseshell &c. The varnish layer may be applied to the celluloid &c. so as to combine therewith before the celluloid is attached to the metal.
Patent GB-116662-A (GB)
Title: A New Pack of Playing Cards.
Inventor: PISTON MARIE FRANCOIS LEOPOLD
IPC: A63F1/02
Filed: 1917-12-28
Abstract: 116,662. Piston, M. F. L. C. H. Dec. 28, 1917. Card games.-Cards are marked with representations of shells, coins, flags, and grenades instead of spades, clubs, hearts, and diamonds respectively, the court cards bearing double figures of the allies and neutrals or single figures of the belligerents and neutrals of white or coloured races, together with serial numbers, as shown in Sheet 3, and the markings of the lower-value cards being out of centre, as shown in Sheet 1, to allow of easy reading of a hand. Each of the four suits comprises three court cards and seven cards with from four to ten pips, of which four are always positioned to the right of the cards, and the others, or a flower in the case of the lowest-value card, to the left.
Patent GB-531321-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines
IPC: F02F3/08
Filed: 1939-07-01
Abstract: 531,321. Pistons. SPECIALLOID, Ltd., and GRAHAM, E. B. July 1, 1939, No. 19228. [Class 122 (i)] In a light-metal piston having an insert of austenitic cast iron, as described in Specification 483,993, the iron has a co-efficient of expansion of substantially more than 20 per cent. less than that of the light metal. The insert may be of ordinary grey cast iron having a co-efficient of expansion of .000012 per degree C., and the piston body of a silicon aluminium alloy having a co-efficient of expansion of from .000017 to .000019 per degree C.
Patent GB-349346-A (GB)
Title: Improvements in and relating to shredders
IPC: A47J43/25
Filed: 1930-06-24
Abstract: 349,346. Shredding vegetables &c. DIXON, A. H., 506, Washington Mutual Building, Seattle, Washington, U.S.A. June 24, 1930, No. 19243. [Class 5 (i).] The shredder has its ends 1 curved downwardly to form feet, the ends of such feet being reinforced by tubular parts 2. The teeth 3 are each formed by bending upwards a small portion of the metal in front of a hole 4, the cutting edge 5 of each tooth being of arc shape and bevelled as shown at 41. The side edges of the shredder are tubular. The device may rest on its legs or a flat surface or may be used in a bowl with one of the leg portions hooked over the edge of the bowl. The shredder may be made in sets, each shredder of a set having different sized teeth, and the shredders being nested together by the frictional grip of their curved ends. Specification 351,247 is referred to.
Patent GB-715332-A (GB)
Title: Base tip for wooden post or the like
IPC: E04H12/22
Filed: 1951-08-15
Abstract: 715,332. Ground anchors. AGG, C. J. Aug. 28, 1952 [Aug. 15, 1951], No. 19290/51. Class 45 A base tip for a wooden post or the like which is suitable for insertion directly into the ground, comprises a concrete member 1 pointed at its lower end, a central reinforcing bar 3 extending longitudinally through the member 1 with its lower end 2 forming the extremity of the point at the lower end of the concrete member and with its upper end 4 protruding from the top end of the concrete member so as to provide a pin on which to locate the post or like, and a plurality of resilient sumpports such as 5 protruding from the top end of the concrete member and adapted to grip the post or the like. Four resilient supports are provided, spread equally around the bar 3 and these extend into the member 1 to provide additional reinforcing rods. In a modification the pointed end of the concrete member is screw threaded and one of the resilient supports is extended into the pointed end in the form of a helical reinforcement.
Patent GB-314987-A (GB)
Title: Improved electrolytic production of white lead
IPC: C25B1/00
Filed: 1929-06-24
Abstract: 314,987. Frost, R. J. July 6, 1928, [Convention date] White lead, obtaining; lead, obtaining; connections; eleotrolytes, circulating.-White lead is obtained by subjecting lead electrodes to the action of direct current flowing in alternate directions for a predetermined period, e.g. 15 minutes in each direction, in a dilute aqueous solution of commercial sodium bicarbonate. The electrolyte enters the cells 3 by pipes 13 and leaves by pipes 14, passing by a conduit 15 to a tank 16 whence it passes through filters or hydroextractors 25 and is returned by a pump 9 to a tank 10 where it is regenerated with carbonic acid gas. The precipitate is floated off from the cells by the flow of electrolyte assisted by the gases generated. The reversal of current is effected by a double-pole switch 5 actuated by an electromagnet 7 the circuit of which is opened and closed alternately by a switch 22 operated by the flow of fluid alternately into the twin compartments of a pivoted bucket 18. The electrolyte may contain 0.53 oz. of sodium bicarbonate in 4 gallons. The current density is 0.002 amps. per sq. in. at 6 volts. Particles of metallic lead falling from the electrodes are collected periodically from the bottom of the cells and utilized, e.g. for the production of chrome yellow.
Patent GB-1086631-A (GB)
Title: Apparatus for use in testing batches of articles
Inventor: LAISHLEY FREDERICK HERBERT
IPC: G06F17/18
Filed: 1963-05-16
Abstract: 1,086,631. Quality control. JOSEPH LUCAS (INDUSTRIES) Ltd. May 1, 1964 [May 16, 1963], No. 19444/63. Heading G4D. A batch of articles is accepted or rejected as soon as the ratio of accept/reject enters predetermined accept or reject zones, Fig. 1. Accept and reject registers 28, 22 are controlled by totals counter 17 through accept and reject slope counters 32, 25 so as to follow the paths shown in dashed lines in the graph. The number of rejects registered in 15 is compared at 27, 21 with the settings of accept and reject registers 28, 22, equality resulting in operation of the accept or reject indicator 29, 23. Completion of the batch also operates accept indicator 29.
Patent GB-1127515-A (GB)
Title: Cutters for mowers, forage harvesters and the like
IPC: A01D34/535
Filed: 1967-04-27
Abstract: 1,127,515. Harvesting. HOWARD ROTAVATOR PTY. Ltd. 27 April, 1967 [9 Aug., 1966], No. 19498/67. Heading A1F. A cutter for a mower, forage harvester and the like comprises flails 7A secured to anchorages 7 arranged on a shaft 3 between abutments 10, 11, at least one compressed resilient element being interposed either between two of the anchorages or between one of the abutments and an anchorage. As described the resilient element comprises a compression spring 7 positioned between two anchorages 7 the remaining anchorages being spaced apart by tubular spacers 8. The shaft 3 has a hexagonal portion 4 and the anchorages 7 comprise discs to which the flails are riveted. The abutments 10, 11 comprise nuts located on threaded portions of the shaft 3. The resilient element may comprise one or more dished spring washers or a washer of rubber or like material. The abutments 10, 11 may be provided by a collar integral with the shaft and a collar slidable along the shaft and anchored in position by a cotter pin. The anchorages 7 may be keyed to the shaft.
Patent GB-1535297-A (GB)
Title: Electric stepping motor
IPC: G04C3/14
Filed: 1976-05-12
Abstract: 1535297 Electric watches SEIKO KOKI KK 12 May 1976 [14 May 1975] 19548/76 Heading G3T [Also in Division H2] A stepping motor for an electric timepiece comprises permanent magnet rotors 2, 4' having parallel axes 3, 5 and different numbers of poles, the plane containing the axes 3, 5 being at an angle to the magnetic field produced by stator coil M through the rotor 2. As described the rotor 4', which is located outside the coil, has four poles while the rotor 2 has two. Each step of rotor 2 thus produces a smaller angular step of rotor 4', allowing a reduction in the diameter of wheel 10 coupled to seconds hand 13.
Patent GB-478322-A (GB)
Title: Improvements in and relating to boots and shoes
IPC: A43B7/14
Filed: 1936-07-15
Abstract: 478,322. Foot-arch supports. DICKSON, J. July 15, 1936, Nos. 19626/36 and 5661 /37. [Class 17 (ii)] A strip d of leather or other material is secured at its lower end between upper and lower layers a, b of an insole, the upper layer a having moulded thereon a bulge or projection c to support the arch of the foot. The free end of the strip d is narrowed and has eyelets f, which are somewhat below the eyelets g by which the shoe is fastened by a lace or strap, so that, when the fastening means are passed through the eyelets f and secured, the support is drawn closely to the foot. Alternatively, the lower end of the strip d may be secured between the inner sole and bottom filling material.
Patent GB-663516-A (GB)
Title: Improvements in or relating to separation of olefins from hydrocarbon mixtures
IPC: C07C7/11
Filed: 1947-07-24
Abstract: Olefines are separated from saturated hydrocarbons by contacting with a solution of a cuprous salt in o-anisidine, separating the solution containing the dissolved olefines from the saturated hydrocarbons, and desorbing the olefines from the cuprous salt-o-anisidine solution by, e.g. reducing pressure and/or heating.  The mixture of hydrocarbons is preferably in the gaseous phase and diluent gases such as methane, ethane, hydrogen or nitrogen or other inert oxygen-free, non-combustible gas may be added and pressures and temperatures adjusted to maintain a gaseous phase throughout the process which is preferably effected in counter-current.  Olefines specified are mono-olefines, e.g. ethylene, propylene, butylene, pentanes and hexanes and di-olefines, e.g. butadiene, isoprene and piperylene.  Saturated hydrocarbons specified are methane, ethane, propane, butane, pentane and hexane and may be alicyclic.  Absorption pressures instanced are up to 500 lbs./sq. inch, preferably 50-500 lbs./sq. inch.  Temperatures for absorption instanced are -30 DEG - +30 DEG  C., preferably 10-25 DEG  C., whilst at low temperatures anti-freezes, e.g. methyl and ethyl alcohol and acetone should be present. Desorption temperatures instanced are 40-100 DEG  C. and pressures below atmospheric may be used.  Acetylene and hydrogensulphide should not be present.  Cuprous salts listed are the chloride, nitrate, iodide, bromide, formate, acetate and butyrate and are usually dissolved in the amine in amounts of 5 per cent by weight up to saturation limits.  Excess salt may be present and the solution may be on conventional absorbents such as pumice, diatomaceous earth and sawdust.  The olefine may be removed from the solution by passing an isoparaffin therethrough when an olefineisoparaffin alkylation feedstock may be obtained. Illustrations are provided of the quantities of ethylene dissolved in a solution of cuprous chloride in o-anisidine at varying pressures, of desorbing ethylene from such a solution at varying pressures, it being shown that the desorped solution retains its effectiveness, and of the comparative insolubility of propane in such a solution.ALSO:Olefines are separated from saturated hydrocarbons by contacting with a solution of a cuprous salt in o-anisidine [see Group IV(b) for details of process].  The process is effective for liquid or gaseous mixtures. Olefines specified are mono-olefines, e.g. ethylene, propylene, butylene, pentenes and hexenes and diolefines, e.g. butadane, isoprene and piperylene.  Saturated hydrocarbons instanced are the paraffins methane to hexane and may be alicyclic.  Inert oxygen free, non-combustible gases may be present, e.g. hydrogen or nitrogen, to assist in the maintenance of a gaseous phase reaction.
Patent GB-407238-A (GB)
Title: Improvements in or relating to weaving looms
IPC: D03D49/44
Filed: 1933-07-14
Abstract: 407,238. Loom picking-motions. PHILY, F., 80, Rue de SÞze, Lyons, France.-(also Assignee of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, and Wellisch, L. ; 22, Emserstrasse, both in Berlin.) July 14, 1933, No. 19906. Convention date, July 14, 1932. [Class 142 (iii).] The picking- sticks are operated electrically by means controlled by the crankshaft or other positively - moving part of the loom. The picking- sticks may be mounted on rotary electromagnets or on the shafts of motors 1, 2 fed from the mains by remote control switches 3, 4 which are alternately put in series with a switch 8 by a switch 11 which is operated by a pawl and ratchet device from a disc 6 on the crankshaft. A cam 7 on the disc closes the switch 8 to effect the picking at the appropriate time. The strength of the pick may be adjusted by resistances applied to the windings of the motors, and the picking-sticks may be checked by resilient stops. The picking-sticks may be brought to their initial positions by springs or weights, or by reversal of the motors.
Patent GB-963307-A (GB)
Title: Styrene polymer and method of making
IPC: C08F279/02
Filed: 1962-05-24
Abstract: High-impact strength polymers are made by dispersing in styrene a polybutadiene containing 5 to 12% of the 1,2-addition product, 25 to 70% of the cis-1,4-addition product, and the remainder is traus-1,4- addition product, and then polymerizing the styrene on the polybutadiene.  The polybutadiene is preferably one obtained by polymerizing butadiene by means of a lithium based catalyst.
Patent GB-1492255-A (GB)
Title: Process for the preparation of chloroanthraquinones from nitroanthraquinones
IPC: C07C205/47
Filed: 1976-05-14
Abstract: 1492255 Preparation of α-chloroanthraquinones BAYER AG 14 May 1976 [17 May 1975] 20009/76 Heading C2C The invention comprises a process for the preparation of α-chloroanthraquinones by reaction of the corresponding α-nitroanthraquinones with an ionic chloride in a solvent and in the presence of an acid or a compound which eliminates an acid, under the reaction conditions, at elevated temperatures.
Patent GB-590563-A (GB)
Title: Improvements in record changing mechanisms for gramophones and the like
IPC: G11B17/16
Filed: 1944-10-17
Abstract: 590,563. Record changing mechanism. AKTIEBOLAGET CRYPTOTEKNIK. Oct. 17, 1944, No. 20076. Convention date, Nov. 16, 1943. [Class 40 (ii)] In a magazine gramophone of the type where a number of records of both large and small diameters are stacked on a stepped spindle, records are unseated from the step one by one on to the turntable each time the turntable, which is mounted on the end of a movable arm 8, is moved through a circular path so that the lowermost record strikes an abutment. If the lowermost record of the stack is of the smaller diameter it strikes the pin 15 of the abutment lever 16 at slightly less than half a revolution of the arm 8, and by frictional contact, the record is unseated from the step 5. If the lowermost record is of the larger size, the pin 15 is struck by the edge of the record considerably earlier, and the lever 16 is rotated to a new position limited by the stop 23, when further movement unseats the record. In a modification, Fig. 5 (not shown), the top 23 is replaced by a further pin on lever 16. The Specification as open to inspection under Sect. 91 states also that the alternative positions taken up by the lever 16 in dependence on the size of the record may be utilized to set the tone arm at the start of the record. This subject-matter does not appear in the Specification as accepted.
Patent GB-737788-A (GB)
Title: Method and apparatus for applying coating material to the inside of a container
IPC: B05C13/02
Filed: 1952-08-08
Abstract: Containers 48 are coated internally <PICT:0737788/III/1> and subsequently heat-treated by being mounted on conveyer flights 35 supporting them at spaced intervals and having the coating material projected onto the inside of the container by nozzles 80 p  at the top of standpipes 79.  The containers are rotated by an electric motor 87 through drivers 92.  The containers are fluxed from a standpipe carrying a nozzle 74, then pass to the coating nozzle, and finally through a door 54 to the heat-treating zone where a stress-relief at 600 DEG  F. is carried out.  The nozzles are carried by a lower elevator powered by pneumatic or hydraulic cylinders 65 (only one shown).  The upper elevator is powered by similar cylinders 85 and carries the rotating means 87, 92.  Both elevators, the spraying means and the conveyer are all actuated by electrical control means.  Flags 132 are provided at the loading end of the machine and sense the presence of a container at each station. Unless all stations are filled the apparatus will not function.
Patent GB-661514-A (GB)
Title: Improvements in or relating to a brake lining clamp and apparatus for applying the same
IPC: F16D69/04
Filed: 1949-08-03
Abstract: 661,514. Cramps and clamps. STEVENS, A. H. (Dura-Bond Inc.). Aug. 3, 1949, No. 20195/49. Class 61 (ii). [Also in Group XXXIV] Apparatus for assembling and clamping linings to the flanges of brake shoes comprises a table having a pair of relatively separable abutment members, a clamping band and a spreader member. A pair of brake shoes 21 and their linings 24 are arranged inside the flexible band B on the table T. Abutment members 78 and 79 slidable in a slot 76 in the table top are hooked at 87H for engagement with the webs 22 of the shoes and on relative separation, tension the band and clamp the linings to the shoes. The member 78 is fixed to the table by bolts 88, the member 79 being adjustable by means of the screw 80 which co-operates with a downwardly projecting nut 81 carried by the member. The band comprises two or more flexible parts connected by coil springs 28 each provided with an endless tension indicator band 30. A wider band having its parts connected by pairs of coil springs is used with larger brake shoes. The clamped assembly may be removed from the table by placing a spreader S between the shoes and releasing the abutment members from contact therewith. The spreader comprises either two adjustable bars 90 and 91 or two telescopic tubes having outwardly diverging arms each provided with a notch for engagement with the brake shoe flanges at points on opposite sides of the abutments 78 and 79.