baber/WOPTO huggingface dataset:
Patent GB-667889-A (GB)
Title: A machine for unravelling knitted fabrics and rewinding the yarn therefrom
IPC: D04B17/00
Filed: 1950-03-13
Abstract: 667,889. Unravelling knitted fabrics and rewinding yarn therefrom. LAURIDSEN, J. March 13,1950, No. 6243/50. Class 120(ii) A machine for unravelling knitted fabrics and rewinding the yarn therefrom. comprises a frame 8, which may be covered with wire netting and provided with pins to hold the pieces of knitted fabric thereon, a rotatable drum 6, supports 2, 3, for holding removable spools 5 so that they are rotated by the drum 6 and mechanism, e.g. guides 14 carried by a bar 13 reciprocated axially by a heart cam 12 driven by worm and wormwheel gearing 9, 10 from the shaft of the drum 6, for distributing the unravelled yarn upon the spools. The driving pulley 7 may be stepped to provide for variations in driving speed. The frame 8 may be replaced by a plate.
Patent GB-197456-A (GB)
Title: Improvements in the manufacture of boxes
IPC: B31C1/06
Filed: 1922-03-03
Abstract: 197,456. Shields, T., (Burt Co., Ltd., F. N.). March 3, 1922. Fittings, internal; lined and covered boxes; lids; apparatus for making boxes. In making boxes, a two-ply core 4 of cheap paper such as card middle strip with adhesive on its outer face is formed by winding on a rotating former of circular, oval,. hexagonal, rectangular, or other shape. A second wider strip to form a two-ply layer 5, preferably of kraft paper, is glued or otherwise sized on its inner face and allowed to dry, and is than moistened over a width corresponding to that of the core 4 only and fed to the former through a guide 11 with one spring pressed side 12. The layer 5 may be covered by a gold or other ornamental strip 20, which is turned down over the edge of the layer by rollers 23, and folded inside the layer by axially advanced plungers 31. Head members 15 or 14 and 16 are inserted to bear against the core 4 and the dry sizing of the projecting edge of the layer 5 is softened by a heated crimping die, the edge being crimped over the box-ends and drying in position. In the complete face powder box shown in Fig. 12, a twoply lining 27 with a frangible, paper top 26 is glued to the inside of the bottom 24, the top 25 forming a removable lid sliding over the lining 27. Access to the powder is obtained by fracture of the top 26.
Patent GB-762208-A (GB)
Title: Improvements in or relating to electronic timing systems
IPC: H03K17/288
Filed: 1954-03-04
Abstract: 762,208. Discharge-tube relay circuits. IGRANIC ELECTRIC CO., Ltd. March 4, 1954 [March 5, 1953], No. 6360/54. Class 40(6) The Figure shows the circuit of a timer operated from an A.C. supply applied across terminals L<SP>1</SP>, L<SP>2</SP>. When switch 20 is closed capacitor 18 is charged from the A.C. potential between the taps of potentiometers 13 and 15 via diodes 21 and 22 until thyratron 10 is rendered non-conducting. When switch 20 is opened capacitor 18 discharges through resistors 24 and 19 until after a given period thyratron 10 conducts relay 8 operates. The delay period before the charge in capacitor 18 is sufficiently reduced to render thyratron 10 conducting can be varied by adjustment of the taps of potentiometers 13 and 15 the former, which varies the in-phase voltage at the control electrode of tube 10, acting as a " fine adjustment and. the latter as a " coarse " adjustment of the timing period. The timer is relatievly insensitive to fluctuations in the mains voltage.
Patent GB-916756-A (GB)
Title: Improvements in the preparation of catalysts for the polymerisation of olefins
IPC: C08F4/68
Filed: 1961-02-22
Abstract: Catalyst components useful in the polymerization of olefines are prepared by intensely milling together, so as to form a co-crystallized product, (a) a partially reduced halide of a transition metal of Group IVa, Va, VIa or VIII and (b) a halide of a metal of Group II or III; from 0,05 to 1,0 moles of (b) being used per mole of (a).  Specified (a) are iodides, bromides and preferably chlorides of Ti, Zr, Th, V, Ta, Mo and W, particularly TiCl3 and VCl3.  Specified (b) are chlorides of Al, Ga and Be.  The preferred molar ratio of (a) to (b) is 1:0,2-0,33.  The milling may be effected by grinding the dry components in an inert atmosphere in a ball mill equipped with steel balls for a period of 3-15 days.  The catalyst component is activated with a solution in an inert diluent of an organo-metallic compound such as those derived from metals of Group I-III, in particular Al.  Preferred organo-metallic compounds are triethyl, tripropyl and triisobutyl aluminium as well as mono- and dialkyl aluminium halides.  Suitable inert diluents are aliphatic and aromatic hydrocarbons which may be chlorinated, xylene being preferred.  Examples are given. Specifications 828,326 and 843,385 are referred to.ALSO:Olefines are polymerized using as catalyst a component formed by intensely milling together, so as to form a co-crystallized product, (a) a partially reduced halide of a transition metal of Group IVa, Va, VIa or VIII and a halide of a metal of Group II or III, from 0,05 to 1,0 moles of (b) being used per mole of (a), activated by an organometallic compound of a metal of Groups I-III.  Specified organometallic compounds are aluminium tri-alkyls and mono- and di-alkyl chlorides.  The catalysts may be used to homopolymerize or copolymerize a -olefines such as ethylene, propylene, butene-1, heptene-1, and dodecene-1 by contacting the desired olefine feed with the activated catalyst in a hydrocarbon solvent at 0 DEG -100 DEG C. at pressures from sub-atmospheric to 150 p.s.i.g., preferably atmospheric pressure in batch or continuous operation.  Preferred catalyst concentration is 0,1-0,5% based on the weight of diluent while the concentration of polymer product may range from 1 to 20% by weight of the total contents present.  After polymerization the product may be removed by treatment with isopropyl alcohol and acetyl acetone followed by filtration of the precipitated polymer.  Examples are given.  Specifications 828,326 and 843,385 are referred to.
Patent GB-159415-A (GB)
Title: Improvements in and relating to casement window fasteners and the like
IPC: E05C17/28
Filed: 1920-03-03
Abstract: 159,415. Sanders, T. March 3, 1920. Stays for casement-window fasteners of the type wherein a hinged stay-bar e is secured to the movable window frame at its outer end and of which the inner end moves in relation to a slotted bar c fixed to the window ledge b. A block d, Fig. 3, sliding in a slot between the flanges of the stationary member c is loosely connected to the stay-bar by the bolt j carrying a wing-nut f. When the wing-nut is tightened, the block d and stay e grip the flanges of the bar e thus securing the window a in any desired position. The stay e is attached to the window frame by means of the member g. The stay e, member g, and block d are made from uniform strip metal, and the member c with its flanges is made as a whole from sheet metal.
Patent GB-384641-A (GB)
Title: Improvements in or relating to automobile seats
IPC: B60N2/14
Filed: 1931-03-02
Abstract: 384,641. Seating arrangements for vehicles. DAYTON ACCESSORIES MANUFACTURING CO., 212, Fountain Avenue, Dayton, Ohio, U.S.A. - (Assignees of Smelker, LeR. ; 212, Fountain Avenue, Dayton, Ohio, U.S.A.) March 2, 1931, No. 6487. Convention date, March 3, 1930. Void [Published under Sect. 91 of the Acts]. [Class 103 (ii).] An automobile seat comprises a two-part base member, the parts being pivoted together on a vertical axis and movable to facilitate entry of passengers ; the closing of the door may lock the parts ; optionally the seat may be swung upwards about its front edge, the two parts of the base being automatically latched together as the seat is lifted. Fig. 2 shows such a seat lifted, and Fig. 3 a plan showing the seat base members 11, 12 pivoted together on a pin 33 ; the member 11 is pivoted at 23 to angle-irons 21 bolted to the floor of the vehicle, so that the seat may be swung upwards about its front edge. The members 11, 12 are connected as shown in Fig. 10 by a pivot pin 33 in recesses 35 and by overlapping arcuate tongues 36 .. 39; anti-friction ridges 40, 41 are also formed by grooving the part 12; they run on the part 11, and are lubricated by wicks at the ends of the grooves. A swinging-latch 44 connects the parts 11, 12 as the seat is lifted about its forward pivots 23. To prevent the seat from swinging, a push-rod 48, Fig. 3, is slidably mounted on the part 11 by slot and screw connections. The inner end engages with a tongue on the part 11, and the outer end is engaged by the door, being fitted with an adjustable extension piece 54 for this purpose. The seat cushion of the driver's seat is similarly pivoted on a vertical axis arranged nearer the centre of the rear edge than the pivot 33 shown in Fig. 3. The latch 44 is replaced by a swinging catch operated by the door by means of a spring-pressed rod, and the seat cushion, instead of being supported by tapering side flanges 27, is supported at its front edge by a forwardly-inclined flange.
Patent GB-899390-A (GB)
Title: Improvements in coated tablets
IPC: B32B27/00
Filed: 1960-02-24
Abstract: Coated or uncoated tablets are given a protective coating (which is not necessarily the outermost coating) of a film of a resin of terpene polymers melting between 70 DEG  and 135 DEG  C. Preferred polymers are those of b -pinenes melting between 80 DEG  and 125 DEG C.  The coating may be applied by conventional pan-coating processes using a solution of the polymer, e.g. in a chloroalkane such as 1,1,1-trichlorethane which may optionally contain thickeners, e.g. cellulosic esters (ethyl cellulose preferred) and which may form a part of the coating film.  Compatible dyestuffs, e.g. quinoline yellow may also be added.
Patent GB-473128-A (GB)
Title: Improved apparatus for analysing sound waves or electric oscillations comprising a band of frequencies
IPC: G10L21/06
Filed: 1936-03-04
Abstract: 473,128. Optical sound - recording apparatus; audible - signalling apparatus. WALTON, G. W. March 4, 1936, No. 6532. [Classes 40 (ii) and 118 (ii)] [Also in Groups XXXVI and XL] A device for analyzing electric oscillations or sound waves comprises a plurality of magnetic circuits in parallel, separate armatures associated with the individual circuits being mounted for free vibration about a common axis in such a way that their mounting depends entirely on the presence of the flux, and the reluctance of the individual circuits being different so that the armatures have different natural periods of vibration and may respond to the component frequencies of the oscillations being analyzed. In one embodiment, sound waves are introduced by a horn 10 into the upper portion of a cylindrical magnet 1 divided by a partition 8 ending in a knife edge 3 on which a plurality of identical armatures 4 are pivotally held by the magnet. The pole faces 2 of the magnet diverge slightly so that the air gaps 6 vary along the length of the magnet whereby the armatures have different periods of vibration and resonate with the individual frequencies of the sound wave. The various frequency components of the sound waves are recorded on a continuously moving photographic film 15 by a light source 11, which projects the image of a stop 18 in a slot 17 through a lens 12 on to a slot 14 the light being reflected in its path by the faces 7 of the individual armatures. Normally, no light passes through the slot 14, but when an armature 4 vibrates the corresponding portion of the image moves from coincidence with the slot, and the oscillation is recorded on the film by a line parallel to the movement thereof the density of which is proportional to the amplitude of the oscillation, in a manner similar to that described in Specification 412,206. The armatures 4 may vary in mass progressively and so be arranged to oscillate with equal amplitudes when the analyzed frequency components have equal energy. Electric oscillations to be analyzed are applied to a coil 21, Fig. 3, on a branch of the magnet 1.
Patent GB-889766-A (GB)
Title: Improvements in steroids and the synthesis thereof
IPC: C07J75/00
Filed: 1959-02-25
Abstract: The invention comprises steroid compounds of the general formula <FORM:0889766/IV (b)/1> wherein the 1,2- and 6,7-positions are saturated or double bonded, R represents hydrogen and R1 represents a b -hydroxy group or together R and R1 represent a keto group, X and X1 each represent hydrogen or a halogen, at least one being hydrogen, Y and Y1 each represent hydrogen or a methyl group, Z represents a divalent hydrocarbon radical of less than 10 carbon atoms, M represents hydrogen on a cation which forms a water-soluble salt, and wherein P and Q each represent hydrogen or an alkyl group containing less than 8 carbon atoms, a monocyclic aromatic group, a monocyclic aralkyl group in which the alkyl portion contains less than 8 carbon atoms, a monocyclic heterocyclic group, or a monocyclic heterocyclicalkyl group in which the alkyl portion contains less than 8 carbon atoms, or together P and Q represent an alkylene group, and the preparation thereof by reacting the corresponding free 21-hydroxy compound with an anhydride or acyl halide of a dicarboxylic acid of the formula HOOC-Z-COOH, and, if desired, neutralising the resulting acid derivatives by treatment with a base to form a water-soluble salt.  The reaction with the dicarboxylic acid derivative may be carried out in the presence of an organic base, e.g. pyridine, advantageously at an elevated temperature.  A large number of suitable 21-hydroxy-steroid reactants for the above process are detailed.  Suitable specific hydrocarbon dicarboxylic acid reactants are oxalic, malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, maleic, fumaric, citraconic and phthalic acids. The water soluble salts may be derived from ammonium hydroxide, alkali metal hydroxides, alkaline-earth metal hydroxides, dialkylamines and heterocyclic amines such as pyridine.  A number of detailed examples are given.  Specification 889,765 is referred to.
Patent GB-1206043-A (GB)
Title: Improvements in or relating to projectors
Inventor: BUTLER LAWRENCE
IPC: G03B21/32
Filed: 1968-02-09
Abstract: 1,206,043. Projector. RANK ORGANISATION Ltd. Jan.1, 1969 [Feb.9, 1968], No.6553/68. Heading G2E. A projector has horizontal takeup and feed spools mounted one above the other with guide means for twisting the film between the two spools. As shown, the projector comprises a casing 1 containing a conventional projection system with horizontaly co-axially mounted feed spool 8 and takeup spool 9. Film 7 from reel 8 is fed above the top 11 of casing 1 over guide rollers 10, 10<SP>1</SP> to an opening 12 in the casing 1 from where it passes through the gate 5, over guide roller 13 to takeup spool 9, the periphery of which, directly rearward of the gate 5, rotates away from the gate. Automatic threading means may be provided Fig.2 (not shown) which includes a hollow guide chute (16) and retaining finger (21) serving to twist and divert the film end through 90 degrees after leaving the gate, so that if may be engaged by radially projecting hooks, (24) on the hub (23) of spool 9. Alternatively, for manual threading an additional roller may be provided. A fixed strip 15 around the feed spool 8 retains film which unwinds from the supply spool 8. Spool Drive Spools 8 and 9 are supported on a spindle 26, Fig. 3, mounted in fixed bearings 27 between which pulley 28 is rigidly secured to the spindle, the pulley being driven by belt 28<SP>1</SP> from a motor. The pulley 28 and hence spindle 26 is supported on a lifting arm 29 pivotally mounted at one end 32 and supported at its other end by a slidable cam 33. At the lower end of spindle 26 is a clutch plate 34 upon which the spool 9 rests, thus a constant frictional drive is applied to spool 9. Supply spool 8 has a hub 36 arranged to rotate on spindle 26 and including a housing 37 for a dog clutch. Below and coupled to housing 37 is a clutch plate housing 38 formed on its upper surface with a dog clutch slot 39. On its lower surface a bearing surface 42 is arranged to run on the upper bearing 27. Rigidly secured to spinle 26 within housing 37 are dogs 43 and rigidly  secured to spindle 26 within housing 38 is a clutch plate 44. In operation, when projecting, the lifting arm 29 is in its upper position (dashed line) so that the dog clutch is disengaged and clutch plate 44 engages housing 38. A torque is therefore applied to the supply spool 8 which opposes the intermittent feed mechanism and maintains the film strip taut. At the same time, clutch plate 34 exerts a torque on takeup spool 9 sufficient for the film to be wound with adequate tightness. For rewind the cam 33 is withdrawn to the right allowing spindle 26 to fall to engage the dog clutch, the drive being against the torque exerted by clutch plate 34 on takeup spool 9 to avoid "snatching" of the filmstrip
Patent GB-882459-A (GB)
Title: Improvements relating to the automatic control of machine tools
Inventor: LOWTHER ROBERT RAMSEY
IPC: G05B19/4105
Filed: 1957-02-27
Abstract: 882,459. Electric copying-machines. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 20, 1958 [Feb. 27, 1957], No. 6574/57. Class 38 (6). In a three-dimensional machine tool control operating in response to a punched tape input, provision is made for continuous, interpolated, control of two axes; and stepped control of the third. The three movements of the machine table are effected by hydraulic rams controlled by valves 1, 2, 3 which, with amplifiers 4, 5, 6 and follow-up devices 10, 13; 11, 14 and 12, 15 form closed loop servo systems which respond to signals derived from the tape reader 16. A five-digit punched tape is used, four of the digits representing on a binary scale the decimal value of the co-ordinates of the locus of the machine's cutters, the fifth digit serving to identify various command signals. Signals representing the coordinates of the cutter with respect to the two fully controlled axes are encoded alternately on the tape and are read and converted to their analogue value and passed by a multi-bank selector switch 20 to stores 17, 18 as disclosed in Specification 846,381, from whence they are applied to interpolators 21, 22 as disclosed in Specification 830,462. The interpolated signals can be applied to any two of the three machine table axes by a manual selector switch 23 and each axis also includes a datum shift unit 27 for initial alignment of the work with respect to the cutter. The third, stepped axis is controlled by signals from a store 19, which is divided into two parts having outputs selected by a switch 26. During the machining of the contoured axes, the output of the selected store 19 remains unchanged. However, on receipt of the code number 29 from the tape, the selector switch 20 is enabled to pass the next five digits to the vacant part of store 19, and at the commencement of the next run, switch 26 is changed over to apply this new instruction to the third axis servo. Provision is also made for additional command codes to effect initial alignment to stop the feed, and to ignore certain instructions. Specification 802,472 also is referred to.
Patent GB-846903-A (GB)
Title: Zinc pigment production
IPC: B22F9/04
Filed: 1956-11-09
Abstract: A highly dispersed zinc leaf pigment is produced by milling down atomized zinc to a size below 60 microns in the presence of a liquid hydrocarbon dispersing agent and a lubricant.  The milling is preferably carried out so that the specific surface area of the pigment produced is between 0.8 and 2.2 square metres per gram. A secondary or tertiary alkaline earth phosphate equal to 0.05 to 5% of the zinc by weight may be added before, during or after the milling process.  An absorption inhibitor of a highly polar structure e.g. an amine may also be added to the zinc.  An example is described.ALSO:A process for producing highly dispersed zinc leaf pigment comprises milling down atomized zinc to a size below 60 microns in the presence of a liquid hydrocarbon dispersing agent and a lubricant.  The milling is preferably carried out so that the specific surface area of the pigment produced is between 0.8 and 2.2 square metres per gram.  A secondary or tertiary alkaline earth phosphate equal to 0.05 to 5% of the zinc by weight may be added before, during or after the milling process.  An absorption inhibitor of a highly polar structure e.g. an amine may also be added to the zinc.  An example is described.
Patent GB-341760-A (GB)
Title: Improvements in the manufacture of meat rolls
IPC: A23L13/00
Filed: 1930-02-28
Abstract: 341,760. Meat rolls. VICKERS, H., Barnfield, Bury New Road, Prestwich, Lancashire. Feb. 28, 1930, No. 6637. [Class 28 (ii).] Meat rolls comprise both coarsely chopped or sliced meat, and meat paste, the coarsely chopped &c. meat 2 constituting either a core surrounded by meat paste or a shell into which meat paste is inserted to form a core. The coarsely chopped meatmay be beef, veal, ham &c., either with or without gelatine, egg, spice, flavourings &c. and the meat paste may be finely minced or pounded meat, fish &c. with tomato, bread, spices, flavourings &c. The shell may be formed in a mould in a warm state and allowed to set, and the core may then be inserted in a warm condition. A double-walled mould may be used, the inner wall being withdrawn after the shell has set, so that the core may be inserted. The meat rolls may be of round, oval, square, triangular or other section and may be covered with toasted breadcrumbs &c.
Patent GB-722340-A (GB)
Title: Improvements in wall-bolt devices and foundation-bolt devices
IPC: F16B13/08
Filed: 1952-03-14
Abstract: 722,340. Bolt-hole bushes. REES, T. A. March 9, 1953 [March 14, 1952], No. 6659/52. Class 89 (1). A wall bolt device comprises a bolt C with conical head G and a sleeve H having slits J and teeth F at its end adjacent head G, and dogs D at its other end for engagement by a wrench K. After positioning the device in a hole, the wrench is turned and nut B tightened on the bolt to draw the head G into the sleeve which is thus expanded and caused to cut a conical recess in the wall. When the slotted end of the sleeve is completely expanded to support the bolt head, the wrench is removed. A spring E urges a washer A against a shoulder on the wrench to determine the initial depth of insertion of the device into the hole.