baber/WOPTO huggingface dataset:
Patent GB-634553-A (GB)
Title: Improvements in or relating to apparatus for drawing glass upwardly from a body of molten glass
IPC: B65G49/06
Filed: 1948-02-17
Abstract: 634,553. Glass manufacture. PILKINGTON BROS., Ltd., PYE, G. T., and JONES, H. G. Feb. 17, 1948, No. 4677. [Class 56] In apparatus for upwardly drawing a sheet of flat glass from a body of molten glass, the upper part of the rising sheet is engaged, above the line of severance, by suction means carried on a frame which is movable towards the glass to apply the suckers thereto and is rockable whereby the severed glass is raised, to avoid the rising sheet, as the frame is retracted to remove the severed glass. The suckers 5 are carried on members 6 pivoted at 30 on a support depending from a carriage 3 movable transversely to the glass 2 on a track 1. The members 6 are connected by a link 10 to a roller-ended pivoted arm 8 which, on the return motion of the carriage, is depressed by a fixed cam 14 so that the glass sheet is moved upwardly away from the rising edge of the main sheet. The carriage 3 is actuated by a chain 16 driven by a motor, a switch 20 in the motor circuit being closed by the rising glass sheet so that the motor starts to move the carriage towards the glass sheet, the vacuum connection 13, 15, 11 to the suckers being opened by the advancing carriage, the suckers being thus applied to the glass in operative condition. The carriage 3 contacts a limit switch 26 which opens the motor circuit, but the reverse motor circuit is then closed by a pressure-operated switch 12, the carriage being thus retracted to raise and withdraw the severed sheet. On its backward movement, the vacuum valve 15 is returned to its closed position, the vacuum in the suckers being bled through a hole 15a, to permit the sheet to be deposited on a dumping table 2a movable along a trackway. Alternatively, the sheet may be removed from the partially bled suckers by hand, and fans may be provided for cooling the glass, whilst it is on the suckers, to facilitate the handling. The reverse motion of the motor is stopped by the carriage opening a limit switch 25. The suckers, preferably three in number, are carried on a bar 31 pivoted in the two spaced rocker arms 6, the pivotal movement being limited by arms 33 carrying weights 34. Each sucker is connected by flexible tubing to a transverse vacuum supply pipe connected to the tube 11. The transverse pipe carries a vacuum gauge.
Patent GB-1208321-A (GB)
Title: An appliance for the withdrawal of extruded material issuing from extrusion presses
IPC: B21C35/02
Filed: 1968-01-30
Abstract: 1,208,321. Extruder haul-off or withdrawal devices. SCHLOEMANN A.G. 30 Jan., 1968 [15 Feb., 1967], No. 4690/68. Heading B5A. [Also in Division B3] A withdrawing device C, D for the extruded product W leaving an extrusion press P has a speed regulating circuit K, Fig. 2, and a pull regulating circuit L which are brought into operation alternately by a change-over switch G. An extrusion gripper D is mounted on a carriage C driven through a cable 28, pulley 19, coupling 18, Fig. 2, and gearing 17 by an hydraulic driving motor 3. This is supplied by a variable delivery pump 10 driven by a motor 9 and whose output is controlled by a piston 8 supplied with control liquid through a regulating valve 5 by a control pump 7 driven by motor 6. A filling pump 12 is provided for the hydraulic circuit together with safety valves 11, 16, 16a. Carriage motor 3 drives a tacho-generator 4 whose output is compared in a bridge circuit K with a desired speed value set by a potentiometer 1. The output voltage of the bridge circuit is fed through contacts g 1  and f to a plunger coil 2 controlling the regulating valve 5 and hence the output of the pump 10. The hydraulic supply pressure to motor 3, which is a measure of the withdrawal pull, is detected by a gauge 22 and potentiometer 23 and is compared in a bridge circuit L with a desired pull value set by potentiometer 24. The output of this bridge circuit is alternately fed to coil 2 through contacts g 2 . Contacts g 1  and g 2  are switched alternately by a switch G controlled by a timer E which is started automatically and the contact f is closed by the leading end of the extruded product W interrupting a light beam between source A and a photo-cell B.
Patent GB-1204785-A (GB)
Title: Manufacture of permanent magnets
Inventor: SHAW STUART WALTER KER
IPC: C22C1/02
Filed: 1968-01-30
Abstract: 1,204,785. Making alloys. INTERNATIONAL NICKEL Ltd. Jan.22, 1969 [Jan.30, 1968], No. 4800/68. Headings C7A and C7D. An ingot having a columnar crystal structure is made of an alloy consisting of Al 6-11% Ni 7-25% Co 20-55% Ti 1-6À5% Cu 0-10% Nb 0-4% Fe (at least 13%) balance except for C and impurities, by forming a melt of the constituents except Ti and Al and including in it C 0À01-0À25%, subjecting the melt to vacuum, adding the Ti and Al, holding the melt under vacuum for at least 2 minutes, and then casting in an ingot mould with a bottom chill. The initial melting and the Ti and Al additions are preferably effected under an inert gas. Permanent magnets may be made of the columnar portion of the ingot by solution-heating (e.g. at 1275‹C.), rapid cooling (e.g. in oil), heating in a magnetic field (e.g. at 799‹, 812‹ or 820‹ C.), and ageing (e.g. at 590‹ and then 560‹C.).
Patent GB-224435-A (GB)
Title: Improvements in and relating to the roller bearings of turntables for revolving cranes excavators and the like
IPC: F16C19/26
Filed: 1924-02-26
Abstract: 224,435. Lobnitz & Co., Ltd., and Bedgood, H. O. Feb. 26, 1924. Roller bearings.-In a turntable bearing supporting the revolving base 1 of a crane, excavator &c., of the type comprising rollers 5 mounted on spindles 6 secured between inner and outer supporting rings 7, 8, the spindles 6 serve as distance pieces between the rings and are held fast by pairs of bolts 10 which pass through the spindles and bind the rings together. Any roller can be removed or replaced when brought beneath a removable section of the upper rail 2.
Patent GB-128332-A (GB)
Title: Improvements in or relating to Dry Electric Batteries and the Method of Making the same.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: H01M6/06
Filed: 1918-03-19
Abstract: 128,332. Jackson, W.. J. Mellersh-, (Burgess Battery Co.). March 19, 1918. Electrolytes. - In a dry battery having a gelatinizable electrolyte, some or all of the materials of the electrolyte are cooled below 12‹ C., and preferably to 0‹ C., before being mixed together, the electrolyte being then poured into the battery while still cold and fluid and setting to a jelly as it rises to the ordinary room temperature of 16-24‹ C. In an example, the electrolyte consists of a solution of 250-560 gm. of ammonium chloride in 1000 c.c. of zinc chloride solution containing from 27 to 67 per cent of zinc chloride, preferably about 32 per cent, and gelatinized by the addition of a cereal such as a mixture of two parts of corn starch and one of corn meal. Rice flour or potato starch may also be used. The mixed chlorides may constitute from 20 to 70 per cent by weight of the electrolyte, and the cereal from 7 to 34 per cent, the remainder being water. The zinc chloride may constitute from 13 to 47 per cent of the gelatinized electrolyte. Fig. 1 shows a cell having a zinc container 1 and carbon rod 2 surrounded by a mixture 4 of graphite or retort carbon and manganese dioxide, such as pyrolusite or recovered manganese. A disk 5 of paraffined paper covers the bottom of the container 1. The carbon 2, with the block 4, is lowered into position, the cooled electrolyte being poured into the remaining space and forming the only separating- medium between the two electrodes. A gas space 7 is left at the top, the cell being closed by a disk of paraffined paper 8 and a layer of pitch 9.
Patent GB-693220-A (GB)
Title: Improvements in or relating to circuits for setting the level of electric signals
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H04N5/18
Filed: 1950-02-25
Abstract: 693,220. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 7, 1951 [Feb. 25, 1950], No. 4891/50. Class 40 (iii). In a circuit arrangement for re-inserting the D.C. component into electric signals (e.g. television signals) containing recurrent datum-level signals, a smoothing circuit is provided for smoothing the corrected signals. The Figure shows the general arrangement in which a D.C re-inserting " clamp " circuit of the type described in Specification 449,242 and including a switch 3 which is " closed " periodically by means of pulses 7 which at the recurrence frequency of the datum-level signals, i.e. the television synchronizing signals supplied at terminals 1) is employed to " clamp " the latter signals at a potential determined by the setting of potentiometer 5. In accordance with the invention the corrected signals, which are developed across condenser 2, are supplied to the output terminals 15 via a smoothing circuit comprising condenser 13 and resistance 14, the time-constant of which is of the order of the recurrence period of the datum signals. Instead of a " clamp " type D.C. re-inserting device, an arrangement of the peak rectifying type, such as described in Specification 616,984, may be employed. A low-pass filter comprising condenser 17 and resistance 16 is included in series with the switch 3 to reduce disturbing effects from H.F. noise components. The signals supplied at terminals 15 may be fed to a further D.C. re-inserting circuit to reduce still further any residual interference.
Patent GB-342908-A (GB)
Title: Improvements in the manufacture of artificial leather
Filed: 1930-02-13
Abstract: 342,908. Artificial leather. ENGEL, A., 3, Piazza Dante, Bergamo, Italy. Feb. 13, 1930, No. 4893. Convention date, Feb. 13, 1929. [Class 96.] In the manufacture of artificial leather from scraps or clippings of natural leather comprising washing, trituration into pulp, and making up sheets or boards by hand or by ply-machines, the pulp, before, or during, trituration is subjected to an oxidizing action. The clippings are cut up, washed, and the :nass neutralized with alkali if necessary and again washed, ozone being blown through the washing machine. Trituration is then effected in a refiner and during the treatment an emulsifying agent such as dilute soap solution is added, and also sumach and a suitable proportion of basic dyestuff to produce the normal colour of the leather. The final addition of stabilized latex and blown fish oil produces a pulp from which sheets may be made in the ordinary way, the pulp at this stage being present in the mixture in the proportion of about 1 to 30. Powerful suction is used and draining is completed by a hydraulic press. The drying is effected at a temperature not exceeding 30‹ C.
Patent GB-103734-A (GB)
Title: Improvements in Sewing Machines.
Inventor: FRANCIS CHARLES EDWARD
IPC: D05B57/14
Filed: 1916-04-04
Abstract: 103,734. Francis, C. E. April 4, 1916. Sewing - machines; lockstitching b y hooks.-The hook body A, Fig. 2, which is adapted to be rotated, with variable motion, once only for each stitch, is cup - shaped and has its face, for rather more than half its periphery, set forward beyond the other part a<1>. The loop-taking point a is formed by cutting away a portion of the outstanding face, one edge a<2> of the gap being inclined outwards and forming the side of the hook point. The gap is made large and is bridged by a raised piece C, which serves to control the loop. The bobbin case E, Figs. 11 and 14, is provided with the usual flange e over about two-thirds of its periphery, and is held in the seating D. Fig. 2, of the hook by a holding-ring. A projection e<2> is provided on the outer peripheral edge of the case and has a thread-eye e<1>, which is in the same vertical plane as the needle-hole in the throatplate and is outside the path of the hook-point. The thread is led to the eye e<1> from the bobbin through the slot e<3> and along the groove e<4>, and is tensioned by a plate spring secured in a shallow groove of the lug e<2> by a screw threaded into the hole h. The needle descends into a hole e<5> directly at the back of the lug e<2>, which serves to throw the needle-thread loop into the position for being taken by the hook, and behind the hole is a projection e<6> which serves to hold the bobbin case in its normal position in the hook. The bobbin case is retained in position by a ring, preferably hinged, which has a slot adapted to engage the lug e<2> loosely. The contacting surfaces of the bobbin case and ring are bevelled more acutely at the top on each side of the lug than at the bottom portion to counteract the tendency of the case to rise when the thread is pulled.
Patent GB-1452882-A (GB)
Title: Zener diode for integrated circuits
IPC: H01L27/06
Filed: 1975-02-06
Abstract: 1452882 Semi-conductor devices RCA CORPORATION 6 Feb 1975 [11 Feb 1974] 5014/75 Heading H1K A Zener diode in an integrated structure has a first region 22 of one conductivity type comprising two diffused portions, a first portion 24 being of higher impurity concentration and being overlapped by less than the whole of its area by a second, shallower portion 26 of weaker impurity concentration. A second region 34 is of opposite type and forms a PN junction with the first region 22 with part of the junction within the zones of maximum concentration of the two regions. During diffusion of the portion 26 an area is masked to create an aperture in this portion (Fig. 4, not shown) so that less than all the portion 24 is overlapped. The diffusion is carried out in an oxidizing atmosphere and the resulting oxide layer segregates the impurities leaving a concentration in the overlap zone between the two portions less than that in the first portion 24 outside this zone. Contact is made to the N + region only over the shallow P portion 26 of the first P region.
Patent GB-726561-A (GB)
Title: Improvements relating to trailer couplings
IPC: B62D53/08
Filed: 1953-02-23
Abstract: 726,561. Vehicle couplings. DAIMLERBENZ AKT.-GES. Feb. 23, 1953 [Feb. 23, 1952], No. 5073/53. Class 103 (5). A coupling for connecting a tractor to a semi-trailer comprises a trapezoidal shaped shoe 21 pivoted at 20 to spaced transverse members 15 secured to a turn-table 12, 14, carried by the tractor and a complementaryshaped shoe 29 secured to the semi-trailer. A pin 30 and pins 32 secured to the semitrailer engage socket 31 and open-ended slots 33 forming part of shoe 21 to prevent vertical separation of the shoes whilst relative longitudinal separation is prevented by a coupling stub slidably housed in the casing 24 and raised by the pin 49 connected by links to the hand lever 40 to enter a complementary recess in the housing 37 carried by the semi-trailer. The coupling stub also carries one half of a dogclutch which transmits power from the driven shaft 58 to the output shaft 76.
Patent GB-894490-A (GB)
Title: Closed-cell sponge rubber pipe insulation
IPC: F16L59/02
Filed: 1961-02-10
Abstract: 894,490. Heat-insulated pipes. GOODRICH CO., B. F. Feb. 10, 1961 [Feb. 15, 1960], No. 5077/61. Class 99(2). A tubular-shaped insulation covering 10 for drawing over the exterior surface of a pipe is of flexible, resilient, closedcell sponge rubber and has a number of radially disposed serrations 12 contoured into the wall thereof, the serrations extending longitudinally along the length of the covering. As shown, the serrations are semicircular in cross-section, but may be parallel-sided and end in a concavity, or substantially circular. Specification 829,912 and U.S.A. Specification 2,299,593 are referred to.
Patent GB-825750-A (GB)
Title: Improvements in or relating to injector type safety razors
IPC: B26B21/24
Filed: 1956-02-17
Abstract: 825,750. Razor blade magazines. KLEINMAN, J. L. Feb. 17, 1956, No. 5081/56. Class 18. [Also in Group XIV] The head of an injector razor comprises an inner member 11, having a wall 12 and a blade seat 14, an outer member 10 having a wall 24, a blade-cover 28 and a flange 30 provided with a zig-zag slot 31, and a spring 39 urging the members to blade-clamping position while permitting their separation, for blade replacement, by a magazine entered through the slot and sliding between the walls. Hooks 32 on the wall 12 hingedly engage apertures in the wall 24 to which a handle 35 is secured. The spring 39 being secured to the handle by a screw 40 which regulates the clamping pressure exerted on the single- or double-edged blade 15 by the cover 28, seat 14 lugs 79 and curved neck parts 26. The end wall 12<SP>1</SP> is curved to facilitate insertion of the tapered zig-zag finger 57 of the magazine 64 to separate the members, the ends of the seat and cover remote from the flange 30 being tapered and engaging each other when the other ends are separated for insertion of the new blade which pushes out the used blade. The magazine houses a spring-urged stack of blades and has internal locating projections and enlargements 56 of the exit slot 55 to prevent damage of the cutting edges of the blade which is fed to the razor by a slide 69. Spring clips at the exit slot hold the magazine and razor in alignment during blade transfer and in a modification the finger is provided at one side of the magazine, the corrugations extending into the side of the magazine to provide greater strength.
Patent GB-475543-A (GB)
Title: Improvements in compression casting-machines for easily oxidizable metals
IPC: B22D17/30
Filed: 1937-02-20
Abstract: 475,543. Casting-machines. WAGNER, K. F. Feb. 20, 1937, No. 5110. Convention date, Feb. 21, 1936. Addition to 475,541. [Class 83 (i)] In a casting-device described in the parent Specification the measured charge is fed by the plunger 10 direct into the pressure cylinder 14 between a pressure plunger 8 and counter plunger 9 which remains stationary until the charge has been forced into the mould 4 and then moves to the left with the plunger 8 until the residue has been severed from the casting and ejected. After the residue has been knocked off by a lever 17 the empty mould is closed and the plungers 8, 9 and 10 returned to their original positions, the vacuum produced in the cylinder 7 assisting in refilling it. The cylinder 14 is cooled by fluid circulated through a jacket 19 to cool the metal to a plastic condition before forcing into the mould. All the movements are operated in proper sequence under control of device 21. The cylinder 14 comprises two hardened steel bushes 22, 23 with the outlet 15 at their junction. Instead of being above the pressure cylinder the mould may be at one side or at an angle thereto.
Patent GB-735135-A (GB)
Title: Improvements in textile drawing frames
Inventor: SUMMERS RONALD JOHN
IPC: D01H5/24
Filed: 1953-02-24
Abstract: 735,135. Textile drawing frames. T.M.M. (RESEARCH), Ltd. Feb. 17, 1954 [Feb. 24, 1953], No. 5144/53. Class 120(2). A drawing frame for textile fibres comprising upper and lower feed elements, upper and lower intermediate elements, including a porcupine roller, and upper and lower delivery elements has the porcupine roller arranged to co-operate with an intermediate roller, the two rollers being resiliently urged towards each other. The porcupine is preferably mounted in a frame which comprises two spaced brackets 18 carrying two parallel arms 19 connected by a crossbar 20 and supporting bearings for the upper rollers 121, 131; 141, 161 and porcupine 151 that co-operate with lower rollers 12, 13, 14, 16, 17 and 15 respectively. A locking catch 26 holds the upper rollers in operative position and a catch 21 holds the upper roller frame in inoperative position, when necessary, by engagement with an abutment 22. Spring- pressed plungers 132 are provided for retaining the arbors of the upper rollers in their bearings in the inoperative position. In order to straighten the fibres before the main draft is applied, the roller speeds are adjusted to give a slight tension draft between the rollers 12, 13. Porcupine 151 rotates slightly faster than the roller 141 and the rollers 16, 161 rotate at a greater speed, drafts of up to about 10 being obtainable. The roller 15 is fluted and so geared to the porcupine 151 that the pins are received in the flutes. By suitable location of the porcupine 151, the fibres are deflected out of a straight path and forced towards the roots of the pins. The roller 15 is carried by pivoted brackets 28 supported by compression springs 29, an adjustable stop 30 being provided to ensure that the roller 15 does not contact the pins of the porcupine 151.
Patent GB-511521-A (GB)
Title: Improvements in or relating to stylographic pens
IPC: B43K8/16
Filed: 1938-02-18
Abstract: 511,521. Stylographic pens. MENTMORE MANUFACTURING CO., Ltd., ANDREWS, A. E., and JOHNSON, W. F. Feb. 18, 1938, No. 5183. [Class 146 (iii)] In a stylographic pen, the tubular tip 12 and the fine tube 10 constituting the writing-element are formed integral from non-corrodible material, preferably stainless steel. The tip 12 is frictionally mounted in the bore of the enc section 4 of the barrel which may be adapted to receive a self-filling sac 8 The front end of the bore in the section is enlarged, and an aperture or apertures 14 'are formed in the point-section to afford communication between the interior of the section and the enlarged part of the bore. A feed-bar 16 of heavy construction, formed for example, of lead, carrying a feed-wire 17 and having conical ends is mounted in the point-section, capillary grooves 18 being formed in the bar and conical ends and so arranged that one groove at least communicates with an aperture 14. The bar is prevented from withdrawal from the pointsection by a flange 22, which may be provided with saw-cuts, on the section 4. Specifications 1951/08, [Class 146], and 10318/13, [Class 146 (iii)], are referred to.
Patent GB-684310-A (GB)
Title: Improvements in or relating to organosilicon carboxy esters
IPC: C07F7/08
Filed: 1950-06-02
Abstract: The invention comprises organo-silicon compounds of the formula R3SiCmH2mCR1(COOC2H5)2, wherein each R is an alkyl, monocyclic aryl or silico-neopentyl [(CH3)3SiCH2-] radical, R1 is hydrogen or an alkyl radical and m has a value of from 1 to 17, and a process for the preparation of the above compounds by reacting a halogeno-alkyl triorganosilane in which the organo radicals are each an alkyl, monocyclic aryl or silico-neopentyl radical and an alkali-metal salt of diethyl malonate of the general formula R1CH(COOC2H5)2, where R1 is hydrogen or an alkyl radical.  In the examples: (1) diethyltrimethylsilylmethylmalonate is prepared by reacting the sodium salt of diethyl malonate and chloromethyltrimethylsilane and ethyl-b -trimethylsilylpropionate is also formed; (2) diethyl phenyl-dimethylsilylmethylmalonate is prepared from the sodium salt of diethyl malonate and chloromethyldimethylphenylsilane; (3) 1.1 - dicarbethoxy - 3.3.5.5 - tetramethyl-3,5-dislahexane is prepared from the sodium salt of diethyl malonate and iodomethylpentamethyldisilmethylene; (4) diethyl gamma-(trimethyl-silyl)-propyl malonate is prepared by reacting the sodium salt of diethyl malonate and gamma-bromopropyltrimethylsilane; (5) di-ethyl (trimethylsilylmethyl) methyl malonate is prepared by reacting the sodium salt of diethyl trimethylsilyl-methyl malonate and methyl iodide.
Patent GB-227663-A (GB)
Title: Improvements in portable folding seats
IPC: A47C9/10
Filed: 1924-02-29
Abstract: 227,663. Ware, W. I. B. Feb. 29, 1924. Folding seats; rests, back. - A back rest for use with a groundsheet 15 consists of a detachably hinged prop 4 and two crossed bars 1, 2 halved at the middle so as to make a flush junction. The groundsheet has eyelet holes to receive pins on the bars. The leaf 7 of the hinge is pivoted at one end to the bar 1 at 8, and the other end engages detachably with a pin 10 on the bar 2. By turning the hinge about the pivot 8 the prop can be disengaged from the pin 10, and the members taken apart. They can be re-assembled as shown in Fig. 3 and the ground-sheet wrapped round them. Forms suitable for construction in wood or aluminium, and a modified form of hinge are described.