baber/WOPTO huggingface dataset:
Patent GB-1059641-A (GB)
Title: Polymerizing ethylenically unsaturated monomers with cellulosic materials
IPC: A61F13/15
Filed: 1964-04-02
Abstract: A copolymer of a polymerizable ethylenically unsaturated compound and a cellulose derivative is produced by forming a thiocarbonate derivative of cellulose comprising cellulose mono- or di-thiocarbonate or cellulose dithiocarbonic acid and reacting the thiocarbonate derivative with at least one ethylenically unsaturated monomer in the presence of a free radical initiator.  Specified ethylenically unsaturated monomers are styrene, p-chloromethyl styrene, sodium - p - styrenesulphonate, vinyl toluene, 2-5-dichlorostyrene, alpha-methyl styrene, acrylic and methacrylic acids, esters and amides, dialkyl esters, vinyl and vinylidene chlorides, maleates, fumarates and itaconates, vinyl ketones and ethers, vinyl esters, vinyl pyridines and pyrrolidones, vinyl triethoxyl silane, divinyl benzene and divinyl sulphone. The thiocarbonation may take place by treatment of the cellulose in the form of suspension, mat or sheet with carbon disulphide after which the derivative which is a salt or acid is prepared. The process may be carried out by initially forming an ammonium, organic ammonium, sulphonium, phosphonium, arsonium, stibonium or an alkali metal salt of cellulose dithiocarbonate, converting it, if desired, to cellulose dithiocarbonic acid or a cellulose dithiocarbonate of another metal and thereafter reacting the cellulose dithiocarbonate salt or the cellulose dithiocarbonic acid with the ethylenically unsaturated monomer, if desired in the presence of water. Alternatively there may be formed initially an alkali metal, ammonium or water-soluble amine salt of a cellulose monothiocarbonate, and afterwards, if desired, reacting this salt with a salt of another metal to give the cellulose metal mono-thiocarbonate salt and thereafter reacting with the monomer. The cellulose thiocarbonate derivative may be reacted with the monomer in concentration from about 0.05 to 99.9% of the monomer, the monomer being in solution in water in a concentration of from 1 to 100%, at 0 to 100 DEG  C. for 3 minutes to 96 hours.  In a typical example of dithiocarbonation dry defibred bleached southern pine sulphate pulp is treated with 0.25 M sodium silicate solution and later filtered to give an alkaline-wet cellulose pad which is crumbled and placed in an evacuated vacuum dessicator over carbon disulphide and later washed to give the dithiocarbonated pulp.
Patent GB-876503-A (GB)
Title: Biuret polyisocyanates
IPC: C07C275/62
Filed: 1959-04-22
Abstract: Cellular polyurethanes for use in making sponges and insulation material and homogenous non-porous polyurethanes for use in polyurethane coatings are prepared by reacting polyesters and polyalkylene ether glycols with biuret polyisocyanates of the formula OCN-R-(-NX-CO-NX-R-)-nNCO containing not more than 6 isocyanate groups in the molecule and in which the groups X may be the same or different and represent hydrogen or groups of the formula -CO-NX-R-NCO, at least one X in the biuret polyisocyanate general formula representing said group -CO-NX-R-NCO, n is an integer of from 1-5 and R is an aliphatic, hydroaromatic, araliphatic or aromatic radical optionally substituted by halogen atoms or nitro, alkyl or alkoxy groups, but free from hydrogen atoms capable of reacting with isocyanate groups.  Specification 753,712 is referred to.ALSO:The invention comprises biuret polyisocyanates of the formula OCN-R-(-NX-CO-NX-R-)-nNCO containing not more than 6-isocyanate groups in the molecule and in which the groups X may be the same or different and represent hydrogen or groups of the formula -CO-NX-R-NCO, at least one X in the biuret polyisocyanate general formula representing said group -CO-NX-R-NCO, n is an integer of from 1 to 5 and R is an aliphatic, hydroaromatic, araliphatic or aromatic radical optionally substituted by halogen atoms or nitro, alkyl or alkoxy groups, but free from cyanate groups.  The compounds are prepared by reacting at least 3 moles of a diisocyanate of the formula OCN-R-NCO with one mole of water at a temperature of from 70 to 200 DEG C., or by reacting one mole of said diisocyanate of the formula OCN-R-NCO with one mole of a urea diisocyanate of the formula OCN-R-(-NH-CO-NH-R)n-NCO.  Water for the reaction may be provided by salts with water of crystallization or by condensation polymerization.  Specification 753,712 is referred to.ALSO:Cellular polyurethanes for use in making sponges and insulation material are prepared by reacting polyesters and polyalkylene ether glycols with biuret polyisocyanates of the formula OCN-R-(-NX-CO-NX-R-)-nNCO containing not more than 6 isocyanate groups in the molecule and in which the groups X may be the same or different and represent hydrogen or groups of the formula -CO-NX-R-NCO at least one X in the biuret polyisocyanate general formula representing said group -CO-NX-R-NCO, n is an integer of from 1 to 5 and R is an aliphatic, hydroaromatic, araliphatic or aromatic radical optionally substituted by halogen atoms or nitro, alkyl or alkoxy groups, but free from hydrogen atoms capable of reacting with isocyanate groups. Specification 753,712 is referred to.
Patent GB-475498-A (GB)
Title: Improvements in means for introducing deposits into safes, strongrooms and the like
IPC: E05G7/00
Filed: 1936-05-16
Abstract: 475,498. Night safes. PRITCHARD, F. May 16, 1936, No. 13930. [Class 18] A night safe comprises inner and outer shutters 13, 6 respectively which rotate in opposite directions about a vertical or a horizontal axis, the inner shutter being formed with a gap 7 so that a deposit placed on the shutter 6 when both shutters are open, is swept into the safe by the inner shutter as the two close. During this movement, stationary plates 16 enter the gap 7 through slots in one wall 15a to thrust the deposit into the safe if it should be adhering to wall 15a or to jam it against the opposite wall 15, if it is adhering to that wall, and so prevent the shutters being closed. Both shutters are part-cylindrical members with end plates, their rotation in opposite directions being due to the engagement of segmental racks on the end plates of shutter 6 with intermediate pinions in mesh with pinions on a spindle 8 on which the shutter 13 is made fast and the shutter 6, loose. The plates 16 are spaced apart on a sleeve 17 and they are secured by a bolt 18 with spacing bushes 19, the bolt engaging in slots in the end plates of the shutters to allow rotation of the latter. To prevent small articles passing through the slots in the wall 15a, each plate 16 is enclosed by a pair of substantially semicircular plates 20 carried by the shutter 13 and forming extensions of the slots in wall 15a. The plates 20 are mounted between the wall 15a and an inclined flanged plate 21 and they are provided with slots 20a to allow them to rotate past bolt 18. Shutter 6 is counterweighted at 9. The apparatus is housed in a casing 1 mounted on rollers 2 in an outer casing 3 which is secured in a wall 4. Specification 468,391 is referred to.
Patent GB-1310765-A (GB)
Title: Electric stapler apparatus
IPC: B25C5/02
Filed: 1970-03-23
Abstract: 1310765 Stapling machines MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 March 1970 [25 March 1969(3)] 14002/70 Heading B4C An electrically operated stapling machine comprises a staple driving lever 13 pivotable by means of an electromagnet 16 via an armature 17, bell crank levers 19 pivoted at 20 and links 22 to drive a staple from a staple strip A through sheets to be stapled towards an anvil 8. Energization of the electromagnet 16 is controlled by a microswitch 27 which is actuated in response to pivoting of a lever 9 by the sheets. A projection 49 on the lever 9 contacts a plate 29 pivotally mounted on a pin 30 so that pivoting of the lever 9 effects pivotal movement of the plate 29 against bias of spring 31 to move a spring biased pivoted member 33 carried by the plate into contact with a pivoted plate 36 which when pivoted, effects actuation of the microswitch. At the end of a driving stroke downward movement of a pin 23 (Fig. 3) extending between the crank levers 19 causes pivoting of a lever 41 so as to pivot the member 33 against bias of spring 35 and permit the plate 36 to return to its initial position. The electromagnet is de-energized. The position of the lever 9 can be adjusted by means of a knob 51 to permit sheets to be stapled at different locations, and the lever 9 is positively located in an adjusted position by a projection (111) (Fig. 15, not shown) of a spring (115) movable by the knob 51 engaging corrugations (126) in a fixed member (123). The anvil 8 is provided with three oval holes (106) (Fig. 14, not shown) for receiving fixing screws, the shape of the holes permitting adjustment of the position of the anvil. A staple guide case 12 which receives a staple magazine 61 is pivotally mounted, as is the driving lever 13, on a pin 14. Clockwise movement (Fig. 1) of the guide case 12 and of the driving lever by springs is limited by stops 53 and projections 94 respectively. A lever 81 pivotally and adjustably carried by a pin 82 having an eccentric 82<SP>1</SP> has a projection 83 which engages in a notch 67 in the magazine to prevent forward movement of the magazine under bias of a spring (80) (Fig. 6, not shown). To release the projection 83 from the notch 67, a knob 99 is moved rear-wardly so as to pivot the lever 81 against bias of spring 98. A U-shaped member 64 carried by the magazine has a portion 66 extending into a longitudinal groove 56 in the guide case 12 so as to prevent complete withdrawal of the magazine when it is to be replenished with staples.
Patent GB-234825-A (GB)
Title: Improvements in and relating to gun mountings
IPC: F41A27/24
Filed: 1924-12-11
Abstract: 234,825. Schneider et Cie. Feb. 15, 1924, [Convention date]. Addition to 209,055. Mountings, recoil-apparatus.-Guns with conjugated barrels as claimed in the parent Specification, in which the recoil of one barrel causes the run out of the other barrel, have the gun cradles D overhanging the ends of a hollow shaft A<1> forming a common trunnion journaled in the pedestal A of a centre-pivot mount. During recoil, liquid passes from one brake cylinder to the other through the passage a<1> in the trunnion and, during elevational movements of the guns effected by a toothed sector E, the gun barrels C are counterbalanced about the trunnion.
Patent GB-148029-A (GB)
Title: Gear changing device for mechanically propelled vehicles
IPC: F16H61/02
Filed: 1919-06-04
Abstract: 148,029. Andrews, H. J. June 4, 1919. Variable-speed gearing.-Speed changing in a variable-speed gear A, Fig. 2, is facilitated by the use of a separate auxiliary variable-speed gear a the latter being normally disconnected from the former and adapted to be set, while at rest, for the next speed change. The driving and driven shafts B, E of the gear A are connected by gearing C, G to corresponding shafts b, e, which are connectible to the gear a by clutches g, h. The gear a gives the same or nearly the same ratios as the gear A, and the gear a is set beforehand to give the ratio to which the gear A is to be changed. The clutches g, h are normally held out of action by cams H, J, Fig. 1, the former connected to the engine clutch N, the latter to the operating- lever 0 of the gear A, the arrangement being such that the clutches g, h cannot be engaged by their springs unless the clutch N is disengaged and the lever 0 is in neutral position. The invention is suitable for motor-vehicles.
Patent GB-456752-A (GB)
Title: Improvements in and relating to the resilient suspension for motor and other vehicles
IPC: B60G11/22
Filed: 1935-05-14
Abstract: 456,752. Vehicle spring-suspensions; springs. NORTH, 0. D., 76, Elm Park Mansions, Park Walk, Chelsea, and HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. May 14, 1935, No. 14127. [Classes 108 (ii) and 108 (iii)] A vehicle spring-suspension comprises a number of rubber buffers interposed between the axle and the underframe with means for securing the top and bottom of each buffer to the axle and under frame respectively and further separate means for restraining the fore-and-aft and lateral relative displacement of the axle and underframe. Buffers 1 of rubber or like resilient material are disposed between the axle 2 and a transverse frame member 3 and the axle is guided longitudinally by converging radius rods 21 connected to a frame member 24 by means of a flexible or ball joint. A transverse radius rod or link 26 to guide the axle laterally is pivotally connected to brackets 27, 28 on the axle and frame member 3 respectively. A further pair of radius rods or braces 25 connect the frame members 24, 3. The buffers may comprise truncated cones 7 having their broadest ends vulcanized to plates 8 which are connected together by bolts, rivets or an annular rim spun over the edges, a packing plate 11 being interposed if desired. The smaller ends may be connected to plates 12 and provided with metal cups 7a securing means to the axle and frame member 3 comprising bolts 13, one of which may be provided with an axial air leak 13a to give a dash-pot effect or the bolt 13 may have a ball 13b seated on a grooved seating to allow the air to pass fairly freely in one direction but only gradually in the other direction. Fig. 6 shows another form of buffer in one piece the ends being connected to dished plates 18. The buffers may be applied to independent wheel suspensions.
Patent GB-218988-A (GB)
Title: Improvements in stencils for lettering and the like
IPC: B43L13/20
Filed: 1924-06-11
Abstract: 218,988. Wood, E. C. July 12, 1923, [Convention date]. Stencils.-In a stencil for forming letters by means of a pen, pencil, or other marking implement, comprising a strip 10 of suitable material having openings 14 provided therein whereby the letters are formed by using one or two of the openings, means are provided to permit the necessary amount of movement of the stencil when two openings are used to form a letter. The openings 14 are cut between two longitudinal, margins 11, 12 on the strip 10 which is recessed longitudinally between the margins on the side adapted to rest on the surface to be marked to prevent ink blots when a pen is used. A button 16 engages a slot 15 in the strip 10 and is adapted to be pressed on the surface to be marked so that, when the longitudinal edge of the strip 10 rests against a straight edge, the strip can be given a limited movement relatively to the button 16. To mark a letter such as D, it is only necessary to use one opening 14, but to mark other letters, for example the letter B, it is necessary to utilize two openings 18, 19, the opening 18 being used first and the strip then moved relatively to the button 16 to bring the opening 19 into alignment with the part already marked to complete the letter.
Patent GB-257039-A (GB)
Title: Improvements relating to side screens for use on motor vehicles
IPC: B60J1/08
Filed: 1925-05-29
Abstract: 257,039. Humber, Ltd., and Cole, J. A. May 29, 1925. Wind-screens.-In a motor vehicle having sidescreens of the kind which are vertically slidable in guides which can be housed in the body sides or doors, the gap between the rear edge of the front screen 2 and the front edge of the rear side screen 4 is adapted to be closed by a filling- in piece or panel 8 which is hinged to a guide of one of the screens and is arranged to be folded over the aperture in the body side before the guide is folded down into the recess. In the construction shown the panel 8 is shown as hinged to the guide 6 for the rear screen 4 and is formed of two sheets of celluloid mounted in a frame 7 and spaced apart by the thickness of the frame or of the guide channels. The panel can be turned about the guide through an angle of 180‹ to open or close the gap and is returned in its closing position by a spring catch 10 engaging the guide channel 6.
Patent GB-110027-A (GB)
Title: An Improved Packing and Display Box for Bottles and similar Receptacles.
Inventor: CHANDLER GEORGE MANCHESTER
IPC: B65D5/50
Filed: 1916-10-05
Abstract: 110,027. Chandler, G. M. Oct. 5, 1916. Contents, viewing; contents, facilitating access to; boxes made from special blanks; fittings. internal; lids and covers. -A packing and display box for bottles of scent &c. is made from a cardboard or like blank cut and scored as shown in Fig. 1. The part a, which forms an outer receptacle, has side and end portions bent up about the dotted lines shown and wings f suitably secured to the ends. The part b iorming the side cover has side portions turned up at right-angles, and is connected by strips c<1> with a bottle-holding part c, an aperture h in the parts b, c serving to expose the bottle on opposite sides for display. Apertured side portions c<2> are bent up, and wings c<5> are turned in under the strips c<1>, while wings c<6> are secured to the end c<3>. An extension i is folded over and fixed to the raised sides c<2>. Wings j in an aperture in the part i and wings h<2> in the aperture h are bent to engage the corners &c. of a bottle inserted in the holder. In closing the box, the holder is folded against the cover and inserted in the receptacle a in that position. In the display position, Fig. 5, the cover b forms a strut for the holder. In the closed position, a supplemental cover flap g is fastened to the main cover b by tongues inserted in slits g<2>. In some cases, the aperture h does not extend into the cover, and the flap g may then be replaced by a simple fastening-tab. The part g, when present, assists in supporting the holder c, as shown in Fig. 5.
Patent GB-402081-A (GB)
Title: Improvements in and relating to tuning inductance units
IPC: H01F27/36
Filed: 1932-05-19
Abstract: 402,081. Inductances. PYE RADIO, Ltd., Cambridge, and ROOT, E. V., 176, Milton Road, Cambridge. May 19, 1932, No. 14254. [Class 37.] A tuning inductance unit comprises short-wave coils located in a U -shape screen 12, a further U-shape screen 13 being positioned between the coils and at an angle to their common axis. The legs of the screen 13 may be connected by strips of resistance material. Long-wave coils 14 with their common axis at rightangles to that of the shortwave coils have a screen 19 between them formed of short-circuited turns of hare wire. A wave-change switch 22, 24 is operated by a rod 26. One of the inductances may be tapped to provide a reaction winding and the aerial connected to this tapping, these connections being effected by the wave-change switch. The switch may have points to cut out the tuning unit and connect a gramophone pick-up.
Patent GB-111458-A (GB)
Title: Improvements in Driving Gear particularly suitable for Motor Vehicles.
Inventor: MINGAY FRANK HEDLEY
IPC: F16H33/08
Filed: 1917-10-03
Abstract: 111,458. Mingay, F. H. Oct. 3, 1917. Addition to 102,542. Clutches, friction.-In a centrifugally-acting clutch for motor-vehicles, as described in the parent Specification, a driving-disk a mounted loosely on the driving-shaft b is driven therefrom by a radial arm 6 pivoted to a lever which is connected to the disk by a link 2. A spring 9 connects the disk to an arm 8 on the shaft. The outer end of the lever 4 carries a roller 10 which is driven out centrifugally to engage an elliptical opening e in the driven wheel c. The drive is in the direction of the arrows, and the roller 10 in passing over the flattened parts f, g checks the momentum of the disk a and receives extra grip or driving-power. Immediately after the roller has passed the parts f, g, the spring 9 contracts and gives a sudden impulse to the disk.
Patent GB-1154837-A (GB)
Title: Improvements relating to Battery Electrodes
IPC: H01M4/06
Filed: 1966-03-31
Abstract: 1,154,837. Batteries. ELECTRIC STORAGE BATTERY CO. 31 March, 1966 [6 April, 1965], No. 14401/66. Heading H1B. The positive electrode comprises a principal active material 11 of argentic oxide and a secondary active material having a lower potential than the principal, the secondary active material comprising a thin layer 12 interposed between the argentic oxide layer 11 and a steel terminal 3 to form the sole electron path between the argentic oxide layer 11 and the terminal 3. The electrode may be made from a preformed layer 12 of argentous oxide interposed between a pellet of argentic oxide and the steel terminal. Alternatively the outer surface of argentic oxide layer 11 may be reduced to argentous oxide or completely to silver which is reoxidized to argentous oxide prior to insertion in terminal 3. Alternatively the steel electrode may be zinc plated and the argentous oxide layer formed in situ by reducing the surface of argentic oxide pellet to argentous oxide, the argentous oxide layer being then interposed between the argentic oxide pellet, and a layer of zinc oxide, zinc and finally the steel terminal. A zinc electrode 8 is spaced from silver electrode 11, 12 by a semi-permeable barrier or a polyelectrolyte dispersed in P.V.C. or polythene and an electrolyte absorbent layer 9 of matted cotton fibres.
Patent GB-272881-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H33/60
Filed: 1927-05-30
Abstract: 272,881. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). June 18, 1926, [Convention date]. High-potential switches.-The use oi oil is avoided by opening circuit under distilled water and including an air gap in series with the water break, either by the moving contact passing out into air or by providing an air break in series, which opens after and closes before the water break. The contacts are suitably coated to resist the action of water.
Patent GB-1359602-A (GB)
Title: Vehicle cargo tie-down apparatus including a winch
IPC: B60P7/08
Filed: 1972-03-28
Abstract: 1359602 Securing loads on vehicles AMERICAN ALUMINUM CO 28 March 1972 [11 May 1971] 14495/72 Heading B7L [Also in Division E2] A cargo tie-down apparatus, for a transport vehicle such as a motor truck or a railroad car, comprises a channel-shaped rail D including a base web 9 adapted to be secured to the deck A of the vehicle and spaced apart side flanges 10 having longitudinal portions 11 projecting inwardly of the channel at the free edge of each flange 10, and a winch B, for a flexible tie-down element 1, including a winding drum 4 journalled in a U-shaped frame formed by a base portion 2 and two parallel arms 3. The frame has recesses 12 formed in the arms 3 to be engaged by the projecting portions 11, allowing the winch to slide along the rail D to a selected position where it is retained by engagement of a latch 28, pivoted at 29 to an arm 3, into one of several notches 27 spaced along one of the portions 11 of the rail D. The latch 28 is pivoted at 29 between its ends, one end being a head 30 for engagement with the notches 27 and the other end being a combined handle and counterweight 31 to urge the head 30 into one of the notches 27 until manually released. The winch B may be operated to adjust the flexible element 1 by means of a handle pin C received through transverse openings 5 in the drum 4 and is retained by a ratchet mechanism 6, 6a, 7, 8. Alternative shapes to the projecting portions 11  and V-shaped recesses 12 are given, Figs. 5-8 (not shown).
Patent GB-433568-A (GB)
Title: Improvements in or relating to door fastenings
IPC: E05B65/22
Filed: 1934-05-14
Abstract: 433,568. Sliding-latches. JARRED, H. A., 185, Tachbrook Road, Leamington Spa. May 14, 1934, No. 14504. [Class 44] A sliding-latch bolt is spring pressed in a lateral direction to prevent rattling. The rear end of the bolt b is engaged by a lever c pivoted at d. The other end of the lever c is spring pressed so that the bolt b is rocked about a point m into engagement with the catch piece l. The lateral pressure is relieved when the bolt is retracted by the rear end of the bolt engaging an inclined projection j. In a modification the lateral pressure is obtained by a spring-pressed dedent p and the bolt has an inclined surface r which slides on the casing s.