baber/WOPTO huggingface dataset:
Patent GB-443175-A (GB)
Title: Improvements in or relating to rotary step-by-step electric switches
IPC: H01H19/04
Filed: 1934-12-13
Abstract: 443,175. Snap-action switches. SEAWRIGHT, G. B., c/o Arrow Electric Switches, Ltd., Hanger Lane, Ealing, London. Dec. 13, 1934, No. 35822. [Class 38 (v)] In a rotary step-by-step switch in which rotation of a spindle 10 actuates snap-action mechanism which drives a spindle 9 carrying contact blades 3, 4, the snap-action mechanism is contained in a casing 2 which is readily removable from the main casing 1. The spindle 10 has fixed to it a finger 29 which lies between the ends of a spring 27 which also engages a finger 26 on a member 23. Rotation of the spindle 10 strains the spring 27 and tends to drive the member 23, but this movement is prevented by a member 19, which slides in a slot in the member 23, engaging projections on a fixed plate 16. Eventually, rotation of an eccentric 20 fixed to the spindle 10 moves the member 19 clear of the projections and the members 19 and 23 then rotate rapidly through 90‹, carrying with them the spindle 9 which has a square section and fits into a square hole in the member 23.
Patent GB-173964-A (GB)
Title: Improvements in and relating to fluid packing devices
IPC: F16J15/34
Filed: 1920-12-21
Abstract: 173,964. Parsons, R. C. Dec. 21, 1920. Cylinders.-The shaft h and the balance disc n of a centrifugal pump, and the opposed stationary surfaces are faced with layers m of soft rubber, which are vulcanized to backings k of vulcanite, the latter being dovetailed to the metal surfaces. Alternatively, the soft rubber may be attached directly to the metal base. The grit is flushed out through helical grooves 2, the cross section of which increases towards the outlet. In the case of a plunger pump, the plunger and cylinder liner are similarly faced with rubber, and the pitch of the helical grooves is less than half the stroke.
Patent GB-1199280-A (GB)
Title: Process for the Manufacture of Finely Divided Silicon Dioxide
IPC: C01B33/18
Filed: 1967-08-04
Abstract: 1,199,280. Oxidation apparatus. ELEKTROSCHMELZWERK KEMPTEN G.m.b.H. 4 Aug., 1967 [5 Aug., 1956], No. 35849/67. Heading B1X. [Also in Division C1] Apparatus for the preparation of finely divided silicon dioxide by the vapour phase reaction of a silicon halogen compound with oxygen over a fixed or fluidised bed of silicon, silicon carbide or ferrosilicon comprises a quartz tube 1 (Fig. 1) heated by concentric electric furnace 40. Fluidised bed material is supplied through device 43 and forms the bed in the lower quarter of the reaction tube. The gaseous reagents are supplied through channels in closure member 5 which is suitably a ceramic block. The fluidised bed is subdivided into three chambers by two concentrically arranged quartz tubes 2 and 3 having openings 4 (Fig. 2) through which the fluidised bed material flows into the various chambers. Oxygen is introduced through pipe 10 into chamber 11 and hence into the fluidised bed via the centre inlet tubes 31-34 (Fig. 3, not shown) and the outermost inlet tubes 12-17. Silicon halide is introduced via pipe 20, chamber 21 and the middle ring of inlet tubes 22-27. Silicon dioxide is produced in the form of an aerogel and is carried away by the gas stream through coupling fitting 41, any fluidised bed material being present being separated in the gas settling flue 44, and is passed to receptacle 47 where it may be collected.
Patent GB-1111472-A (GB)
Title: Improvements in or relating to silencers for exhaust gases and the like
Inventor: FARTHING VERNON HILTON
IPC: F01N1/06
Filed: 1964-07-22
Abstract: 1,111,472. Exhaust silencers. PECO SILENCERS Ltd. July 19, 1965 [July 22, 1964], No. 35918/67. Divided out of 1,111,471. Heading F1B. Exhaust gases entering at 25 flow partly through a perforated pipe 28 and partly through the annular space 33 around the pipe, which space is closed by perforated partitions 27. A diffuser cap 30 with wide openings 31 surrounds the inlet of pipe 28.
Patent GB-510424-A (GB)
Title: Improvements in shedding mechanism for looms
IPC: D03C1/12
Filed: 1938-12-09
Abstract: 510,424. Loom dobbies. STAUBLI, H., STAUBLI, Jun., H., STAUBLI, R., STAUBLI, H. H., and STAUBLI, O., (trading as STAUBLI & CO., GEB.) Dec. 9, 1938, No. 35946. Convention date, Dec. 20, 1937. [Class 142 (i)] In a dobby of the kind described in Specification 380,750 wherein each vibrator-lever 33 carries a gear 36 connected to a heald shaft and moves it into gear with part-toothed wheels 38, 39 on oppositely rotating shafts, the mechanism between the lever 33 and the corresponding needle 11 which reads the Verdol-paper or like pattern 1 is such that the position of the lever 33 is not changed between consecutive like needle readings. Each needle 11 is supported on one arm 9 of a bell-crank 9, 10 pivoted at 7, while the ring at the end of the arm 10 embraces a draw needle 15 between its bent down end and a light spring. The needle 15 embraces two push rods 19, 20 and is guided at its other end in a bracket 16. According to the position of the needle 11 one or other rod 19, 20 can be lifted by a bar 26, 25, which is raised by a cam 29, to operate the lever 33 through a rocking lever 22, a roller 32, and a cam 34 on the lever 33. The tops of the bars 25, 26 are slightly inclined, so that when the bar 13 lifts the needles 11 between consecutive readings, the springs and the sliding connections between the lever arms 10 and the needles 15 allows any rod 19, 20 to remain in engagement with its bar 25, 26 and if the second reading of any needle 11 is the same as the previous reading, the corresponding vibrator lever 33 remains stationary. The lifting bar 13 is operated by an arm 48 and a cam 47, but can be raised by means of a hand lever for lagging back. The one-toothed wheel 5 for driving the pattern cylinder 2 can be driven in either direction from the shaft 30.
Patent GB-738558-A (GB)
Title: Improvements in feeding devices for roller mills for cereal products
Inventor: BALL JOHN STEPHEN
IPC: B02C4/28
Filed: 1953-12-28
Abstract: 738,558. Roller mills. SIMON (HOLDINGS), Ltd., H. Nov. 3, 1954 [Dec. 28, 1953], No. 35977/53. Addition to 671,488. Class 59. [Also in Group XXIX] Means for driving and controlling the speed of the feed roll t or feed rolls of a roller mill comprises the interposition between a power shaft b, or c, and a driven shaft c, or b, of a hydraulic torque converter comprising a sun-wheel d with which mesh planet pinions f journalled in a carrier e, either the sun-wheel or the planet carrier being the driving member of the torque converter with fluid leading to and from the opposite sides of the intermeshing points of the sun-wheel and planet pinions, and with a valve n movable by linkage o connected with a balance plate or the like p in the feed hopper in accordance with the head of stock in the hopper, the position of the valve n controlling the extent of restriction of fluid flow from the delivery sides of the intermeshing points of the sun-wheel and planet pinions and so the speed of the shaft c which drives the feed roll or rolls of each pair of grinding rollers. Ports i, j, lead to or from the sides of the intermeshing points of the sunwheel and planet pinions and communicate with an annular space k in communication with the valve n through a space m. When the valve n is fully open the sun-wheel can remain stationary while the planet pinions revolve around it, while when the valve is fully closed the sun-wheel and planet pinions revolve at the same speed. At valve positions between the fully open and fully closed extremes, the speed of the driven shaft will be varied directly in accordance with the valve position as controlled by the balance plate p. Specification 671,488 is referred to.
Patent GB-1083657-A (GB)
Title: Improvements relating to hardening agents for epoxide resins
Inventor: SINCLAIR JOHN HOWARD
IPC: C08G59/56
Filed: 1965-08-23
Abstract: A curing agent for epoxy resins comprises a homogeneous liquid composition containing at least one aromatic polyamine (e.g. 4,41-diaminodiphenylmethane), a simple phenol (e.g. cresylic acid), a halogenated phenol (e.g. 2,4-dichlorophenol) and a liquid mono- or polyepoxy compound; the polyamine is partially reacted with the epoxy compound.  Examples of epoxy compounds are: butyl glycidyl ether and glycerol triglycidyl ether.  A hardenable composition may comprise an epoxy resin and up to 65% by wt. of the resin of the above curing agent.
Patent GB-1000834-A (GB)
Title: Improved parallel wire separator
IPC: B07B1/12
Filed: 1961-10-06
Abstract: 1,000,834. Sifting apparatus. PROCTOR & GAMBLE Ltd. Oct. 6, 1961 [Oct. 6, 1960], No. 36097/61. Heading B2H.  A separating device, for use with tacky materials, comprises a layer of parallel wires strung between two ends of a frame and tensioned, the wires being divided into two groups the wires of one group being interspersed alternately with those of the other group and means for oscillating one group relative to the other, the oscillations being in planes intersecting the plane of the layer. The wires are raised by means of alternately rising cylindrical cross members 39, 40, Fig. 1, two of which are situated toward each end of the separator. The wires 44, Fig. 5, of one group are raised on grooved ridges 42 of the pair of cross members 39 while the wires of the other group are returning to rest in the recessed grooves 43 of members 39. Similarly while the wires of the one group are returning to rest in the grooves 43 of cross members 40 the wires of the other group are being raised on the wire lifter ridges 42 of the pair of cross members 40. Alternatively one group may be returned to rest before the other group is raised. As a further alternative only a certain number of wires of each group may be oscillated. The cross members 39, 40 are rotatable on stub shafts 38, 41, Fig. 3, (and Fig. 6, not shown), which project from the inside face of rocking plates 33, and the rocking plates are rockable about the axis of stub shafts 31 by means of a motor 17 the rotation of which is converted to a reciprocating motion acting through rods 26 and cam followers 25. The connecting rods 26 are so coupled that the rocking plates 33 rock in phase opposition. The wires are tensioned by means of piano tuner type pins on the separator frame.
Patent GB-929188-A (GB)
Title: Comminuting machine
IPC: A47J43/07
Filed: 1960-10-24
Abstract: 929,188. Comminuting machines. C. SCHNELL, [trading as CARL SCHNELL MASCHINENFABRIK]. Oct. 24, 1960 [Oct. 31, 1959], No. 36400/60. Class 28 (2). A comminuting machine for meat, bread and the like comprises a perforated plate 3 movable towards and away from rotary cutter blades 4 but secured against lateral movement, wherein some of the perforations 9 are covered so that pressure exerted by comminuted material in some or all of these holes causes the plate to move towards the cutter blades. Plate 3 is axially displaceable on bolts 19 on an annular shoulder 2 of a housing 1 and cutter blades 4 are fast on a motor shaft 5. Perforations 9 are at the edge of plate 3 and are oblique having enlargements 11, 12 at the upper and lower sides of the plate. An annular bead 13 on shoulder 2 engages an annular groove in the marginal portion of plate 3 so as to keep the space behind perforations 9 closed. Otherwise, Fig. 6, an annular recess 16 in plate 3 engages machine housing 1.
Patent GB-430918-A (GB)
Title: Mountings for automobile engines and like vibrating bodies
IPC: B60K5/12
Filed: 1933-12-27
Abstract: 430,918. Indiarubber &c. springs. LORD, H. C., 36, Penn Building, Erie, Pennsylvania, U.S.A. Dec. 27, 1933, No. 36405. [Class 108 (iii)] [See also Groups XXXI and XXV] In a mounting for automobile engines and like vibrating bodies, of the type comprising pivotal link members between the engine, &c., and its support, the link members are provided at one or both ends with cushions of rubber or like material adapted yieldingly to resist through shear distortions the endwise thrusts of the links. In the form shown in Fig. 5, the upper end of the link is connected to the engine bracket 4<a> through a rubber cushion 8 of the cylindrical-bush type, and the joint at the lower end comprises a stud 19 secured to a cross member 18 of the chassis. A rubber bush 22 is interposed between a sleeve 21 on the stud 19, and a shell 23 pressed into a sleeve 24 formed at the ends of the links 26, so that endwise thrusts are resisted by a shear action on the rubber. The rubber bush 22 is bonded to the parts 21, 23 during vulcanization, so that it is under initial tension. The bush 22 has rounded ends engaging snubber plates 28, which may be so shaped as to provide around the edges a slight clearance, so that the joint responds to swinging action of the link and gives a comparatively free shear action in the vibration range and a more or less quick snubbing action beyond that range. In another form, a link having a cylindrical pivot bush such as 8 at each end is provided with an extension fitted with a rubber bush acting in shear. In the form shown in Fig. 6, similar shear mountings are provided at both ends, and in a further modification, Fig. 7, bushes 22 at both ends are connected by a bolt 35, upper brackets 37 being carried by the chassis, and lower brackets 40 by the engine. In the form shown in Fig. 13, the link comprises lower and upper rubber discs 48, 49 vulcanized between outer plates 54 and inner plates 50, 52 connected respectively to the chassis and the engine, arcuate snubber plates 61, 62, 60, 63 engaging the inner and outer edges of the rubber discs.
Patent GB-863749-A (GB)
Title: Improvements in or relating to display stands
Inventor: GAIN ARTHUR GEORGE
IPC: A47F5/04
Filed: 1958-11-13
Abstract: 863,749. Display stands. HUNTLEY'S (OLD STREET) Ltd. Nov. 10, 1959 [Nov. 13, 1958], No. 36524/58. Class 52(3). A display stand support comprises a heavy base 1 from which rise three parallel wires 2 to which are fixed a number of shelf supports 3 formed by two parallel rings 4, 5 between which shelves may be inserted.
Patent GB-1121872-A (GB)
Title: Colour correction for television cameras
Inventor: MONTEATH GEORGE DEWAR
IPC: H04N9/09
Filed: 1965-08-25
Abstract: 1,121,872. Colour television. BRITISH BROADCASTING CORP. 15 Aug., 1966 [25 Aug., 1965], No. 36571/65. Heading H4F. Colour-correction is applied to a television camera having three channels which respectively generate colour-separation signals representative of the red, green and blue components of a scene, by subtracting a signal derived from a first of the channels from a signal derived from a second of the channels and adding to the signal from the said second channel a correcting signal derived from the resultant of the subtraction when the resultant exceeds a predetermined value. In the Fig. 2 (Prov.) embodiment, the red (R<SP>1</SP>) signal of a camera employing image converter tubes insensitive to long-wavelength red light is boosted by subtracting the green (G<SP>1</SP>) signal from the red in stages 10, 11, rectifying the resultant at 12, and adding a proportion of the positive part of the resultant to the rod signal at 14 to give a corrected red signal R<SP>1</SP> c . This method assumes that when red predominates over green, the reflection factor for objects in an average scene is greater for long-wavelength reds than for shorter-wavelength reds. If the camera has a luminance channel employing a converter tube insensitive to long-wavelength reds, the luminance signal (Y<SP>1</SP>) is boosted by adding a proportion of the positive part of the resultant at 16. Gamma correction may be applied to the luminance and colour signals before or after the colour-correction. Increased noise-level due to the colour-correction of the camera signals may be reduced by filtering to restrict the band-width of the correction signal added to R<SP>1</SP>, delay circuits being added in each colour signal channel to match the group delay of the filter. The production of a red signal of excessive amplitude may be prevented by limiting the red signal from which the correction-signal is derived, the correction signal and/or the corrected signal. In various modifications (none shown) the correction signal for R<SP>1</SP> is derived from a signal R<SP>1</SP>-kG<SP>1</SP> (where k is a constant greater than unity), two or more correcting signals with different values of k may be added to R<SP>1</SP>, and a correction signal reversed in sign may be added to the blue signal.
Patent GB-970340-A (GB)
Title: Improvements in or relating to soap and like dispensers
IPC: G01F11/28
Filed: 1962-09-26
Abstract: 970,340. Reciprocating pumps. UNITED STATES BORAX & CHEMICAL CORPORATION. Sept. 26, 1962 [Jan. 2, 1962], No. 36608/62. Heading F1A. The base 1 of a viscous liquid dispenser is adapted to receive a container 40 on ledges 9, 11, on which it is releasably clamped. The base carries a tube 19 on which a spring-loaded annular piston 30 is slidable, the outer periphery sealing with the container 40. A valve 20 is slidable in and seats on a piston member 27 slidable in the tube 19. The lower part 28 of the valve is connected by a cable 21 to a plunger 5 slidably mounted in the base I which is formed with a cavity 8 having an outlet 3 controlled by the plunger 5. Inward movement of the plunger 5 opens the outlet 3, causes the valve 20 to seat on the piston 27 and thereafter draws down the piston to discharge liquid to the outlet 3. On release a spring 26 opens the valve 20 and returns the plunger 5 and piston 27. The plunger 5 closing the outlet 3.
Patent GB-830222-A (GB)
Title: Storage and dispensing of fluids
IPC: A61M5/162
Filed: 1956-11-30
Abstract: 830,222. Blood transfusion appliances. LABORATORIEN HAUSMANN A.G. Feb. 28, 1958 [Nov. 30, 1956], No. 36664/56. Class 81 (2). A flexible container for fluids, such as are used in transfusion &c. is made of synthetic resin sheet, having an extendability of at least 300% in one direction, so that a dispensing tube can be passed through the wall without leakage. The bag is preferably made from extruded tubing and is transversely sealed along lines 22 after filling. This may be supported by a clip 60 and a pointed dispensing tube 36 is then passed through the wall. The tube has an orifice 44 so that the contents may pass out of the bag through tubing 54 to an injection needle 56. The tube 36 may have an enlarged portion 40 to form a drip tube and preferably has a lateral projection 46 which is pushed through the end portion 23 to retain it in position. Various types of dispensing tubes are described having the withdrawal orifice 44 in different positions and, in some cases, having one or more such apertures, located in a flat face so as to avoid tearing the material of the bag on insertion.
Patent GB-1340545-A (GB)
Title: Signal encoders
IPC: H03M1/00
Filed: 1971-08-05
Abstract: 1340545 A/D converters; companding WESTERN ELECTRIC CO Inc 5 Aug 1971 [12 Aug 1970] 36771/71 Heading G4H An A/D converter for use as a P.C.M. modulator is adapted to provide a companded output, i.e. a large number of discrete levels are coded when the input signal is small in magnitude, and a smaller number when the input is greater. As shown, the input is applied to a circuit 1 where its instantaneous magnitude is sampled and held for the duration of the coding sequence. A clock 2 is simultaneously started together with a ramp generator 3 the output of which is applied to a comparator 4 together with the sampled analogue input. Clock pulses K1 are admitted via gate 9 and counted at 11 and at an output counter 7 via gate 6 and, assuming the value of the analogue input continues to exceed that of the ramp generator, after a predetermined count, gate 9 is disabled by signal S1, gate 14 enabled by signal S1 and further clock pulses counted at 17. At the start of the coding cycle a binary 1 is inserted into counter 18 and an output pulse at A1 from comparator 12 is produced upon introduction of the first clock pulse at 17, this pulse being counted at 7 via gate 6 and also being fed-back to reset 17 to zero and the element 18 to a binary 2 value. The comparator then only delivers a pulse after two clock pulses are passed to counter 17 and the output at 7 will only receive one of the two clock pulses. As the cycle progresses, after the nth pulse output from comparator 12, n clock pulses will be emitted prior to the n-1th pulse arriving at counter 7. At the point in a cycle where the two input values to comparator 4 become equal, read-out of counter 7 is effected and counters 11, 17, 18, and 7 and ramp generator 3 are all stopped and reset.
Patent GB-945727-A (GB)
Title: Treatment of cellulosic fibre fabrics
Filed: 1961-10-13
Abstract: Cellulosic fibre-containing fabrics are immersed at their open width for a period of time sufficient to allow the impregnation of the fabric but not to permit swelling in an aqueous solution containing 30-60% by weight of sulphuric hydrochloric, phosphoric or formic acid and 5-20% by weight of formaldehyde or a substance which is capable of liberating 5-20% by weight of free formaldehyde under the treatment conditions, e.g. paraform, urotopine and methylol hydantoin, and maintained at a temperature below 40 DEG C., removed from the solution, squeezed to remove excess solution, left to lie at their open width for from 20 seconds to 5 minutes at a temperature of 40 DEG C. or lower and then immediately washed and dried to improve their crease and wrinkle resistance. The fabrics may be pretreated with an aldehyde, e.g. formaldehyde or glyoxal, a thermosetting resin, e.g. urea-formaldehyde, thiourea-formaldehyde, melamine-formaldehyde, ethyleneurea-formaldehyde, acetylenediurea-formaldehyde, ureaformaldehyde, triazene-formaldehyde, acetal, diepoxide, phenol-formaldehyde and ketone-formaldehyde precondensates, or other crosslinking agents, e.g. dichlorohydrine, divinyl sulphane or ethylene imine type compounds, to render them less water absorptive.  The dry crease resistance of the fabrics may be improved by treating them after the acid-formaldehyde treatment with a thermosetting resin, e.g. urea-formaldehyde, thioureaformaldehyde, melamine-formaldehyde, alkylene urea-formaldehyde, acetylene diurea-formaldehyde, urea-formaldehyde, triazone-formaldehyde and phenol-formaldehyde precondensates.  Fabrics containing cotton, linen. hemp, viscose rayon and cuprammanium rayon alone or in admixture with cellulose acetate, polyamide, polyester, polyacrylonitrite, polyolefine, polyvinyl chloride, polyvinylidene chloride or polyvinyl alcohol fibres may be treated.
Patent GB-1095176-A (GB)
Title: Improvements in moulds for making multi-layer soles for footwear
IPC: B29D35/08
Filed: 1965-08-27
Abstract: 1,095,176. Boots &c. DESMA-WERKE G.m.b.H. Aug. 27, 1965 [Sept. 30, 1964], No. 36830/65. Heading A3B. [Also in Division B5] The bottom plunger 13 of an injection mould for shoe soles includes a bottom piece 15 which is movable relative to the plunger 13 to provide different thicknesses over different parts of the sole. With the parts in the Fig. 1 position (not shown) material is injected at 17 to form a layer 16. After an interval the parts 13, 15 are moved to the Fig. 2 position and material e.g. of a different colour injected at 19 to form a second layer 18 which may include a heel portion. The movement of the bottom piece 15 may be limited by pins (20, 21) moving in slots (22, 23) Fig. 3 not shown) or by a shoulder (24) Fig. 4 (not shown). The recess 14 may be deep enough to allow the piece 15 to move further than the plunger 13.