baber/WOPTO huggingface dataset:
Patent GB-1474794-A (GB)
Title: Slide fastener and method and apparatus for making the same
IPC: B29C61/00
Filed: 1974-07-17
Abstract: 1474794 Crimping threads by coiling TEXTRON Inc 17 July 1974 [18 July 1973] 31670/ 74 Heading D1F [Also in Division E2] Apparatus for making intermeshed filamentary coils, constituting a slide fastener element, comprises two, substantially similar, coilers, Fig. 18, each of which consists of a bored shaft 32, or 132, which is rotatably mounted by a lower bearing 34, or 134, with a seat 36, or 136, and an upper bearing 38, or 138, in a casing 20 the shafts 32, 132 being rotatable in opposite senses by a drive shaft 20, gear 24, and a helical gear 30, or 130. A shank member 40, or 140, with a plurality of spaced lugs 44, or 144, about its upper periphery is secured the shafts 32, or 132, the rotary paths of the two sets of lugs 44, or 144 insecting in a manner floatingly to support an oval-shaped mandrel holder 49 having a slot 59 to receive the lower end of a mandrel 60 which is specially shaped at 62, 68, Fig. 21. A mandrel extension 70 extends into a heating box 72. As the two shank members 40, 140 are rotated in opposite senses filamentary material 10, 110 progresses from a supply spool 48, or 148, through the bore of the shaft 32, or 132, round a guide pulley 46, or 146, through a slot in one of the lugs 44, 144 and through a slot 56, or 58 in the mandrel base, the two filaments 10, 110 being wound, 180 out of phase with each other, about the mandrel 60 in opposite senses to form the intermeshed coils. Bight portions (12, 112) are formed by contacting the mandrel 60 connector portions (18, 118) being formed by contacting those portions of the opposite filaments which are wound upon the mandrel. The intermeshed coils are guided upwardly through the heating box 72 for permanent setting and are then air-cooled in a manner to prevent stretching or compression, whereupon they are allowed to drop through a distance of about five feet before being finally cooled while hanging downwardly.
Patent GB-410114-A (GB)
Title: Improvements in or relating to fluorescent screens
IPC: C09K11/58
Filed: 1932-11-09
Abstract: 410,114. Fluorescent screens. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Nov. 9, 1932, No. 31682. Convention date, Nov. 9, 1931. [Class 98 (i).] A fluorescent screen substantially without after-glow, for use with cathode, R÷ntgen, radio-active or ultra-violet rays, is composed of purest zinc-cadmium sulphide, i.e. containing substantially less impurity than 1 part in 100,000, activated with silver. The material may be prepared by precipitation of zinccadmium sulphide from an aqueous solution of a zinc cadmium salt, mixing the precipitate with a slight quantity, e.g. 1 /10,000 of powdered silver and subsequent recrystallization by heat. Alternatively zinc and cadmium sulphides may be fused together with the aid of a suitable flux together with the silver addition. Increase of cadmium content shifts the colouration in the direction of blue to green, yellow or red. The zinc-cadmium sulphide may be mixed with other fluorescent substances, e.g. zinc sulphide, calcium tungstate or zinc silicate, to give any desired colour, e.g. white. Specification 407,318 is referred to.
Patent GB-230907-A (GB)
Title: Improvements in or relating to targets for trap-shooting and the like
IPC: F41J9/16
Filed: 1923-12-18
Abstract: 230,907. Verschoyle, W. D. Dec. 18, 1923. Projectors and projectiles.-A target for trap-shooting, which may also be used as a toy, comprises a plate having sections c, d united by a neck e, which may be formed by notches a, b cut from a circular disc, as shown in Fig. 1. The sections c, d may be rectangular, elliptical &c. and mav be asymmetrical about the neck e. The plate is cambered, as shown in Fig. 2, and is made of frangible material or of light sheet or cast metal. The jaws of the projector are lined with material which will not damage the target, and have an adjustable gripping effect.
Patent GB-1429509-A (GB)
Title: Electronic musical instrument
IPC: G10H1/18
Filed: 1973-07-04
Abstract: 1429509 Electrophonic musical instruments COMPUTONE Inc 4 July 1973 31894/73 Heading G5J [Also in Division G1] A musical instrument comprises a signal generator giving a fundamental frequency and one or more harmonics and comprising an oscillator 102 with coupling means to an output means 125, and, first and second control means on instrument body 11 to produce continuously variable control signals e w  and eg; eg controlling the harmonic content of the signal generator signals and e w  controlling independently of frequency the amplitude via main modulator 121. A keying means produces discontinuous output signals e k , which with eg via adder 100 control the frequency of oscillator 102, the effect of eg being weighted. There is a mouthpiece bearing the first control, which is an air flow transducer, and the second control, is a reed-mounted transducer responding to the performer's embouchure varying the reed position. eg and e w  may be D.C. voltages. Said coupling means includes adder 104 receiving via variable resistor 107 a manually adjustable reference voltage e t  and at least one of eg and e w , and comparator 106 providing the output of the signal generator. A silencing circuit comprises subtractor 126 with a subtracting signal, which varies with changes in e k , provided by absolute value circuit 127. There is a Boehm fingering arrangement, but with extra first and second flat keys and first and second sharp keys with cumulative effects. The waveforms of the signal generator output and of the said oscillator are triangular and the comparator 106 provides a two level output signal, the duration at either level being controlled by its input signals, and this is applied to a lag circuit 108 providing a triangular output waveform, the rise and fall times of which are controlled by the comparative durations of the comparator signal at its two levels. Band pass filters 111 have their centre frequencies in fixed relationship to each other, but controllable by an applied voltage by the performer to track with the frequency variations of the oscillator 102, of which the output is passed to the filters 111 via a time delay circuit 110. The output of filters 111 and e w  are applied to modulator 121. Overtone circuit 115, 116, 117, 118 in response to eg and e w  produces overtones combined with the output of 111. It comprises a means for supplying eg and e w  to function filter elements each of which supplies  its output to a multiplier, which is supplied from the corresponding band pass filter. Descriptions and diagrams of the following are given: The air flow and reed transducers (see GIA, GIN), the filter circuit, the overtone circuit and a keying circuit. Fingering charts are also given.
Patent GB-160010-A (GB)
Title: Improvements in or connected with pumps for the inflation of pneumatic tyres
IPC: F04B39/02
Filed: 1919-12-19
Abstract: 160,010. Davies, T. M. Dec. 19, 1919. Channels in cylinders.-The delivery end of an oscillating pump for inflating pneumatic tyres is secured within a casting b, Fig. 1, having an inwardly projecting flange c and an air outlet b2, the annular space e between the pump-barrel and the flange forming an oil drain chamber into which the pump leather d dips at the end of each delivery stroke of the pump. The air outlet communicates through passages b<3> and b<4> with an air delivery tube and a pressure gauge respectively. In a modification, the flange is formed of a sheet metal disc and is splayed out towards the pump barrel.
Patent GB-413667-A (GB)
Title: Improvements in and relating to heating systems employing a circulating hot liquid
IPC: F24D3/02
Filed: 1932-11-11
Abstract: 413,667. Heating by circulation of fluids. KOCH, E., 64, Victoria Street, London. Nov. 11, 1932, Nos. 31938 and 31939. Convention dates, Nov. 12, 1931 and Nov. 2, 1932. [Class 64 (ii).] Closed heating systems employing a circulating heating liquid have a valve through which heating liquid may be passed directly from the supply to the return in accordance with the capacity of the liquid in the return pipe to receive heat from the supply liquid as measured by the temperature difference between the two. In the form shown the byepass valve 9 is controlled in dependence upon the liquid level in the generator 1 and upon the generator pressure, fluctuations in these values respectively corresponding to changes in the return liquid temperature and supply liquid temperature. The float 10 by connection with a lever system 25, 23 actuates a valve-operating cable adjustably secured to the lever 23 which is also influenced through the agency of a link 21 and lever 16 by a piston rod 14 moving in dependence upon the generator pressure. In systems in which the supply temperature is maintained constant the heat transfer control may be effected by means influenced solely by changes in level in the generator or an expansion chamber, although when in addition means exist for varying such constant supply temperature, e.g., by altering the setting of a controlling thermostat, a compensatory control from such temperature is provided as by means of a thermostatically operated cam and rod, pivoted to lever 25, to counteract the effect produced by an alteration in the float position due to such supply temperature change. A generator pressure control as shown, may also be provided to close the valve 9 when the temperature falls below a predetermined value somewhat above the constant supply temperature, even though a temperature difference exists between supply and return liquid. In such a case, to provide excess heat for transfer, the lever 23 may be connected with a valve-operating rod controlling the generator fuel supply so as to increase it when the generator level falls provided the pressure has fallen to the minimum.
Patent GB-1044754-A (GB)
Title: Means for adjusting the length of stroke of reciprocating tools
IPC: B23D49/00
Filed: 1964-08-06
Abstract: 1,044,754. Planing. H. E. A. DJUBERG. Aug. 6, 1964 [Aug. 8, 1963], No. 31941/64. Heading B3L. [Also in Division B5] A method of controlling the stroke length of a tool in a machine, such as a sawing or shaping machine, in relation to work pieces of different dimensions comprises detecting the dimension of a workpiece and using the detecting movement to adjust the stroke length to individual predetermined values for different dimensions. As described, the machine is a sawing machine having a gear drive 3 to a shaft 2 carrying a flywheel 4 connected by a rod 5 to one arm 8 of a bell crank lever mounted on a pivot 7. The other arm 9 of the lever has a U-shaped guide in which is slidable a die 10 on a pivot 11 connected to a further die 12. The pivot 11 is connected by a link 13 to the yoke 15 of the saw blade 16, the yoke being slidable in a guide 18 on an arm 17 movable about pivots 21 to raise and lower the saw blade. The die 12 is slidable in a guide 50 in a T-shaped member 49 having a nut 48 engaged by a screw-spindle 46 which is vertically mounted in a fixed bracket 47 and connected by bevel gears 44, 45 with a spindle 43. The latter is connected by a chain drive 40 to a shaft 35 having left and right hand threaded portions 36, 37 respectively engaged with nuts 26 on bolts 27 connected to the jaws of the machine; one of the jaws is pivotally adjustable and can be clamped in its adjusted position while the other jaw is freely pivoted to adapt itself to the workpiece. When the shaft 35 is rotated by a hand wheel 38 to cause the jaws to move towards each other and engage the workpiece, the screw-spindle 46 is rotated to vertically move the T-shaped member so that the die 10 is moved along the guide in the member 9 to alter the stroke length of the saw. Electrical, pneumatic or hydraulic means may be used to convert the movement of the jaws into adjustment of the pivot 11.
Patent GB-646656-A (GB)
Title: Continuous tumbling and abrasive blasting machine
Inventor: KEEFER WALTER LYNN
IPC: B24C3/26
Filed: 1947-12-04
Abstract: 646,656. Tumbling and abrasive blasting. PANGBORN CORPORATION. Dec. 4, 1947, No. 32066. [Class 60] A blasting machine, e.g. for castings, comprises a plurality of tumbling barrels arranged end to end and with adjacent ends spaced apart, blasting stream projector means disposed between contiguous ends of adjacent barrels, bridging means between arcuate portions of said contiguous ends travelling at substantially the speed of said ends, means for rotating the barrels and means for driving the bridging means. Axially spaced tumbling barrels 11 are rotatably mounted by tracks 24 thereon running on flanged supporting wheels 25, 26 carried by shafts 27, 28, the former being driven by a motor 29. The gaps 12 between the barrels are bridged by means 14, each comprising the run 15a of an endless belt 15 (of rubber, or rubber-faced) passing over an idler roller 34, a driving roll 35, on the shaft 27, and a tensioning roll 36 on a spring-loadec arm. The gaps 12 between the barrels accommodate the major part of the rotor 13 and associated parts of a direction-controlled centrifugal blasting machine as e.g. described ir U.S.A. Specification 2,352,588, projecting an abrasive stream 16. The outer end of the first barrel is provided with a head 19 having an opening 20 through which the articles are introduced by a shoot 21 leading from a feed conveyer 22. The barrels are provided on their inner walls with a spiral rib 23 to promote the continuous passage of the articles. The finished articles are delivered from the final barrel by a shoot 66 discharging upon a take-away conveyer 67. The barrels are provided with perforated peripheral walls to permit the escape of detritus which collects in an underlying chamber 17 from which it is removed by a screw conveyer 18. No blasting is performed in the final barrel which acts solely as a work tumbling conveying and sieving element. The housing comprises a front beam 40 and a rear beam 41, carrying a sheet metal plate 42 having an horizontal extension 43 provided with a flange 44. Cap members 50 carry the blasting machines, inlet spouts 56 receiving the blasting medium from supply pipes 57. An access opening is provided with a cover plate 63.
Patent GB-324723-A (GB)
Title: Improvements in lamps for vehicles and the like
IPC: B60Q1/14
Filed: 1928-11-03
Abstract: 324,723. Midgley, A. H. Nov. 3, 1928. Motor-vehicle head lamps.-A head lamp comprises a-parabolic reflector a with a source of illumination b situated approximately at the point of intersection of a line A joining the focus B with the extreme upper front edge C of the reflector and a line D projected horizontally from the point where a line E joining the focus with the extreme lower edge of the reflector would meet the reflector when produced. Obscuring means c may be associated with the source of illumination to prevent any direct rays emanating from the lamp. The screen c is of hemispherical form with its diametral plane containing the line A and may be provided by blackening the outer portion of the bulb. The inner portion of the bulb may be coloured, or separate obscuring and coloured screens may be used. A second bulb d may be fitted for use instead of or in addition to the bulb b.
Patent GB-1181864-A (GB)
Title: Improvements in or relating to Character Embossing Apparatus
IPC: B44B5/02
Filed: 1967-07-13
Abstract: 1,181,864. Selective embossing. EUROHANDELSGESELLSCHAFT FUR MASCHINENUND INDUSTRIEBEDARF m.b.H. 13 July, 1967 [16 March, 1967; 17 March, 1967], No. 32239/67. Heading B6F. Type-bar machines; index setting; disposition of type.-A multi-sided type or embossing bar 9 is selectively slidable in a groove 7 to a central embossing position 27, each associated pair of sides comprising index setting characters 19a which are visible in the top 21 of the groove 7 and negative embossing characters 19b. The index characters and the embossing characters on the other pair or pairs of sides may be of different sizes, and the bar may be interchanged with others bearing other kinds of characters. Case-shift.-The change from one type to another may be effected during embossing for embossing characters in another case. Aligning for embossing.-Each embossing bar 9 is notched at 11 for engagement by a spring loaded ball (13) in the top left of the groove 7, Fig. 1, when the bar sides 19a, 19b are in use, and by a similar sprung ball in the lower right of the groove when the unseen sides of the bar are being used. Embossing arrangements.-A platen 25 is slidingly moved to effect embossing by the operation of a lever 133, Fig. 7, in direction 145. This operates a cam 113 engaging a roller 237 on the spring returned platen slide 117. Platens.-Interchangeable platens 25 may be fitted with rubber members 31 to suit the different size characters. Variable letter-spacing.-The tape 121, comprising a plastic foil on which the characters appear during the deforming embossing action is fed automatically on a return strike of the lever 131. A cam 143 pivots a lever 137 and slides a pushing rod 151 to the left, Fig. 6, during operation and a pawl 159 slides over teeth 161 on a ratchet wheel associated with a tape feed wheel 165. A sensing member 169 on the end slides over an adjustable roller 171 having various guides 175, 177. These guides determine the amount of time the pawl 159 is in engagement with the ratchet wheel on the return stroke of the cam 143. Transverse cutting of web.-A cutting tool 131, Fig. 6, is operated by a further cam 111 operated by movement of the lever 133 in a direction indicated by the arrow 135. A second perforation may follow if the lever 133 is retracted a little before the second perforation is made. This is effected without further complete new embossing operation, and enables a backing strip to be easily removed.
Patent GB-857291-A (GB)
Title: Improvements relating to strip material having at least one slit between its end portions
Inventor: COOK MAURICE
IPC: B21B3/00
Filed: 1956-10-23
Abstract: 857,291. Making heat exchangers; casting composite ingots. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 21, 1957 [Oct. 23, 1956], No. 32249/56. Classes 83 (1) and 83 (2). In producing strip material having one or more slits extending longitudinally from end to end thereof and having weld preventing material located in the slit or slits, the slit or slits being capable of expansion under pressure to provide a passage or passages within the strip material, a block of metal is produced having one or more metal sheaths therein extending longitudinally from end to end of the block with weld preventing material therein and the composite body is rolled in the longitudinal direction of the sheath or sheaths to collapse the sheath or sheaths. The block may be cast about the sheath or sheaths or alternatively the block may be cast with holes therein or have holes drilled therein into which holes the sheaths are inserted. The weld preventing material which may be pulverizable or merely a coating, e.g. an anodized coating, on the inner wall of the sheaths, may be disposed within the sheaths before or after their location in the blocks. The sheath may provide a sacrificial lining for the expanded passage. In one embodiment magnesium silicate is packed into a copper sheath, copper is cast about the sheath and finally the body is rolled to produce a strip having powdered magnesium silicate in a slit therein. In a further embodiment a sheath of low melting point aluminium alloy has cooling fluid passed therethrough while higher melting point aluminium is cast about it. After casting pulverizable graphite or magnesium silicate is packed into the sheath and the body is rolled. In another embodiment, a block, e.g. of cast copper is provided with a hole during casting or after casting by drilling and a sheath of, e.g. titanium, is inserted into the hole and filled with pulverizable material or surface coated. By this method strip material for use as a heat exchanger with titanium lined passages and with a copper or aluminium or aluminium alloy surface may be produced. An intermediate lining may be provided between the sheath and cast metal and where more than one passage is provided the linings of adjacent passages may be of different materials. Specification 784,484 is referred to.
Patent GB-689240-A (GB)
Title: Improvements relating to the generation of electrical signals employing a pick-up tube having a target of the charge storage type
Inventor: LUBSZYNSKI HANS GERHARD
IPC: H01J29/02
Filed: 1949-12-16
Abstract: 689,240. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Dec. 6, 1950 [Dec. 16, 1949], No. 32290/49. Class 39(i) [Also in Group XL(b)] In pick-up tubes employing cathode potential stabilisation a distortion arises which, it is stated is due to areas of the insulated surface on which the mosaic elements are deposited becoming negatively charged. Thus an area between highly positively charged elements may charge negatively due to fast photo-electrons and secondary electrons and subsequently inhibit the release of photoelectrons from neighbouring elements, the area remaining charged since the scanning beam cannot reach areas below cathode potential. According to the invention, this defect is eliminated by causing electrons to impinge on the target with a higher velocity during the line return period. As shown the supply network 15, 16 of a pick-up tube 1 is returned to the anode circuit of a normally non-conducting valve 18 which has a cathode supply 20 of some 500-1000 volts and receives positive pulses from a generator 21 through a reversing stage 21a. The pulses are timed to occur wholly within the line return intervals. The pulses are also applied to the frame scan generator 26 to slot the waveform as shown at 27, and to the modulator electrode 4. By this means, during each line return interval, a beam of reduced intensity but velocity increased by 500-1000 volts is caused to scan the target a few lines behind the line just scanned and by virtue of bombardment induced conductivity in the insulating sheet of the mosaic screen and the release of secondary electrons from the mosaic elements, disperses the negative charges. Due to the potential shift the electron beam is strongly defocused but the backwards shift prevents interference with the image area still to be scanned. As an alternative, the electrodes 3, 4 and 5 alone may be pulsed negatively.