baber/WOPTO huggingface dataset:
Patent GB-117966-A (GB)
Title: Improved Teat for Feeding Bottles.
Inventor: GRAHAM-YOOLL FREDERICK RICHARD
IPC: A61J11/00
Filed: 1917-08-17
Abstract: 117,966. Yooll, F. R. Graham-. Aug. 17,1917. Feeding - bottles, teats for. - Teat,s for feeding - bottles a r e formed with flattened or closed parts which are normally close together but can be readily moved apart for cleaning purposes. One or more internal longitudinal grooves or ridges extending the full length of the teat or only at the flattened parts of the teat may be provided to form a passage for the milk, and one or more grooves for the admission of air to the bottle may be provided in the interior or exterior of the teat. Fig. 1 shows a flattened teat piece b with shield ring f carried by a base or collar a, and having internal ridges or grooves m and an air inlet n. A teat with flattened end parts and an intermediate part of round, oval, &c. crosssection is shown in Fig. 3. The teat may have an enlarged base part g, Fig. 4, to fit over the head of a screw stopper h, and an external groove in the side of the stopper forming a milk passage. Fig. 5 shows a screw stopper i with a nipple to receive the base of the flattened teat b. In another arrangement, Fig. 6, the teat consists of two flat faces held together and having an internal milk passage, the plug stopper ! having a side slot through which the teat is introduced into a slot or opening in the stopper. A reversible teat with a central collar m<1> is shown in Fig. 7. Or the teat may be of round, oval, &c. external crosssection with a flattened internal portion n, Fig. 9; this teat is preferably formed by dipping, the internal part n being formed as an extension of the conical &c. outer part which is afterwards turned over so as to enclose the flat portion n. Specification 112,044 is referred to.
Patent GB-1140942-A (GB)
Title: Improvements in logarithmic electronic amplifiers
Inventor: OWENS ALWYN ROBERTS
IPC: G06G7/24
Filed: 1966-03-17
Abstract: 1,140,942. Logarithmic circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 8 March, 1967 [17 March, 1966], No. 11846/66. Heading G4G. A logarithmic operational amplifier in virtual earth mode comprises an input 22 applied to the base of grounded source or channel insulated gate field effect transistor 32 with decoupled resistive collector load 33, directly coupled to the base of PNP transistor 36 in cascade circuit with grounded base PNP transistor 30 whose collector is directly coupled to the base of NPN transistor 41 having its collector resistance coupled to output 23. Overall negative feedback is provided by silicon bipolar PNP transistor 24 whose emitter is connected to output and collector to input while the gain of transistor 41 is modified by negative feedback over PNP transistor 44 with earthed base, whose emitter and collector are respectively connected to the collector and base of transistor 41. In a modification (Fig. 2, not shown), responsive to bipolar input signals a NPN transistor is connected base to base, emitter to emitter, collector to collector with transistor 24, while another NPN transistor is connected emitter to emitter and base to base with transistor 44 and its collector is connected to the collector of transistor 36.
Patent GB-780004-A (GB)
Title: An improved copper-aluminium alloy
Inventor: DENNISON JOHN PHILIP
IPC: C22C9/00
Filed: 1951-05-22
Abstract: An alloy suitable for second stage gas turbine heat interchanger tubes or for gas turbine compressor blades has a composition within the following range: Al 5.5-8.0 per cent, Co 1.0-2.0 per cent, Ni and/or Mn 2.0-6.0 per cent, Cu and the usual impurities the balance. Si up to 0.5 per cent may also be present.  The alloy may be solution treated at 850-1000 DEG C., sections exceeding 1/8 inch in thickness being water quenched and sections not exceeding 1/8 inch being air cooled, followed by cold working and/or precipitation hardening at 400-600 DEG C.
Patent GB-494516-A (GB)
Title: Improvements in or relating to electrical resistance materials
IPC: H01C7/04
Filed: 1937-04-26
Abstract: 494,516. Temperature-variable resistors. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. April 26, 1937, No. 11899. [Class 37] A resistance having a large negative temperature coefficient comprises a fused mixture of copper oxide and manganese dioxide. A mixture of 75 per cent copper oxide and 25 per cent manganese dioxide is melted in an arc between copper electrodes, terminal wires being inserted in the melt and a globule of the resistance material withdrawn and solidified with the wires in position. The resistor may be associated with a relay for giving a time lag operation. Specifications 175,365, [Class 37], and 482,445, [Group XXXVIII], are referred to.
Patent GB-1349990-A (GB)
Title: Hydraulic positive-displacement pump or motor
IPC: F01B3/00
Filed: 1971-04-28
Abstract: 1349990 Rotary positive-displacement  machines; reciprocating pumps and motors SOC ANON FRANCAISE DU FERODO 28 April 1971 [29 April 1970] 11962/71 Headings F1A and F1F In an internally-meshing gear-type hydraulic pump, or motor, passages 17, 18 in a two-part non-rotary annular fluid-distributor 13 interconnect the working chambers between rotors 14a, 14b and inlet and outlet passages 17, 18. Seals 29, 30 and fluid-pressure in a gap 13c urge the two parts 13a, 13h of the distributor towards the rotors and a surface 25. To vary the output the distributor can be turned with the aid of a wheel 23 and a pinion 22 meshing with gear-teeth 21. Each of the seals may have a cruciform crosssection, Fig. 4, extrusion of the seal into the gap 13c being obviated by a rigid belt 31. A distributor similar to that shown may be employed in a swashplate pump or motor, Fig. 6 (not shown).
Patent GB-1079921-A (GB)
Title: Improvements relating to reciprocating pumps or motors
Inventor: HOBSON MICHAEL
IPC: F01B3/00
Filed: 1964-03-20
Abstract: 1,079,921. Reciprocating pumps. TOWLER BROS. (PATENTS) Ltd. March 2, 1965 [March 20, 1964], No. 11966/64. Heading F1A. In a rotary cylinder axial piston type pump the cylinder block 4 is secured to the shaft 7 which is mounted in a double thrust bearing 12 to prevent axial movement relative to the casing 1. so that a clearance is maintained between the end face of the block and the stationary valve face.
Patent GB-280802-A (GB)
Title: Filter for fine filtration of liquids
IPC: B01D29/00
Filed: 1927-05-05
Abstract: 280,802. Petersen, O. May 5, 1927. Strainers comprising grids or gratings. - Apparatus for the treatment of motor and lubricating oils &c. comprises a casing e and buckets a, c fitting one within the other and having longitudinal slits b, Figs. 1 and 2, or longitudinally aligned holes p, Fig. 3, in their side walls. The bottom of the outer bucket forms also a bottom for the inner bucket. The inner bucket is turned so that its slits or holes are displaced relatively to those of the outer bucket, the fineness of the straining being regulated in this way. The casing is provided with a cover g having an inlet i and with an outlet f. The buckets are secured in mutual relation by a pin n.
Patent GB-1463964-A (GB)
Title: Cookware lubricants
IPC: A21D8/08
Filed: 1975-03-21
Abstract: 1463964 Cookware lubricant compositions D W FOLLMER 21 March 1975 12028/75 Heading C4X [Also in Divisions B1-B2] A cookware lubricant composition adapted to be dispensed under aerosol propellant pressure from a container on to a cookware surface without foaming while temporarily marking the surface, comprises (a) an aqueous component having a pH between 3 and 9À8 and comprising a water-in-oil emulsion of 0À5 to 25% by weight of lecithin comprising P-inositol, P-choline and P-cephalin phosphatides in a ratio such that the composition has an HLB number of not more than 7, the P-inositol constituting not less than 10% of the total weight of the phosphatides or (b) a water-in-oil emulsion of an oily lubricant having an HLB number not more than 7 and comprising lecithin which contains by weight not less than 10% P-inositol based on the combined weight of P-inositol, P-choline and P- cephalin phosphatides therein. In the Examples the compositions comprise lecithin, soybean oil, diluent comprising C 6-9  hydrocarbons, vegetable oil (glycerol oleates), safflower oil, calcium ascorbate, ascorbic acid, other polyvalent ion salts, glyceryl palmitate, water and propellants e.g. isobutane and difluorodichloromethanes.
Patent GB-763058-A (GB)
Title: Turbine driven multi-stage compressor or pump
Inventor: BUCHI ALFRED
IPC: F01D1/24
Filed: 1953-04-30
Abstract: 763,058. Gas turbine plant; centrifugal and axial-flow compressors and pumps. BUCHI, A. April 30, 1953 [April 30, 1952], No. 12033/53. Classes 110 (1) and 110 (3). In a multi-stage compressor or pump comprising at least two impeller assemblies of at least one stage each, the assemblies being driven in opposite directions by contrarotating gas turbine rotors through coaxial inner and outer shafts, at least the final stage of the higher pressure assembly discharges the fluid in radially outward direction and the lower pressure assembly has an axial intake and discharges into the first stage of the higher pressure assembly. In the blower shown in Fig. 1, a turbine rotor 31 drives an impeller 1 of the compressor through a shaft 3, and an oppositely rotating turbine rotor 35 drives a further impeller 4 through a hollow shaft 6 which is concentric with the shaft 3. Guide blades 40 may be provided at the turbine inlet. Shaft 6 is journalled in a bearing 80, and shaft 3 is journalled within the shaft 6 at 60 and 61 and also in a stationary bearing 62. Lubricant from a pipe 90 passes through the shaft 3 to the bearings 60, 61. Bearings 80 and 62 are lubricated through pipes 91 and 93 respectively. Lubricant is drained from the bearings through pipes 92 and 94. Sealing air is bled-off from the compressor to labyrinth packings by way of a clearance space 102 and bores 103. In the embodiment shown in Fig. 2 additional impellers 21 and 14 of the axial-flow type are attached to the impeller 1, and an intercooler 15 is provided. The turbine rotor 31 has two sets of blading 32 and 32<SP>1</SP> with stationary guide blading 46 interposed. Freely rotating rings may be interposed between the shafts 3 and 6 and the respective bearings. In the compressor shown in Fig. 8, the compressor impeller 1 is of the axial-flow type, with two stages, and the turbine rotors 31 and 35 are also of the axialflow type. Shaft 3 is journalled in outboard bearings 65, 65<SP>1</SP>, and shaft 6 is journalled in bearings 81<SP>1</SP>, 81<SP>11</SP>. In a modification, the turbine is generally similar to that shown in Fig. 2, but is instead of the inward-flow type. In Fig. 7, the shroud 22 of the impeller 4 supports axial-flow blading 20, 20<SP>1</SP> rotating oppositely to blading 2, 2<SP>1</SP> carried by the shaft 3. Shaft 3 is journalled in outboard bearings 65, 65<SP>1</SP> and shaft 6 is journalled on shaft 3 by means of bearings 60, 61 having freely rotating bushes 601 61<SP>1</SP>. Sleeves 60<SP>11</SP>, 61<SP>11</SP> are interposed between the bushes and the shaft 3.
Patent GB-108897-A (GB)
Title: Improvements in Filters.
IPC: B01D29/00
Filed: 1916-08-25
Abstract: 108,897. Marks, E. C. R., (Zahm Manufacturing Co.). Aug. 25, 1916. Block filters.-Relates to pressure filters of the kind wherein filter tubes 17 are arranged in an inlet chamber 1 and the filtered liquid passes through necks 18 into the outlet chamber 3, and wherein a leakage chamber 9 separates the chambers 1, 3 to prevent any leakage of unfiltered liquid from mixing with the filtrate, and comprises the provision of a sealed joint between the chambers 1, 3 formed by inter-engaging flanges 10 on the chambers, a series of strengthening-ribs extending across the partitions 7, 8 between the chambers, and spring-bosses 15 between these partitions. The leakage chamber is drained by a pipe 13.
Patent GB-330697-A (GB)
Title: Improvements in or relating to coin-freed mechanism and the like
IPC: G07F5/02
Filed: 1929-04-18
Abstract: 330,697. Arnold, R. April 18, 1929. Coin action, mechanical connection and weight; coin-discharging mechanism; games played with moving figures; delivery of articles stored in piles.-A coin, token &c. temporarily forms a connection between a screw-threaded shaft, worm &c. and a sliding member so that on the shaft being rotated the member is moved relatively to the shaft for a predetermined distance. Fig. 3 shows a member a slidable on a guide n and having a boss k encircling a threaded shaft b. A coin inserted in a slot o in the member a engages between two threads of the shaft b so that on the shaft b being rotated the member a moves laterally until the coin drops on reaching a reduced portion q of the shaft. The member a is then returned by a weight or spring. Two or more such spindles may be arranged to move horses in a race game apparatus. Fig. 5 shows the coin c supported in the member a in engagement with the threads of the shaft b by a slotted plate b<1> which is displaced by a stop at the end of the travel of the member a so as to release the coin. The member a carries a pivoted flap w normally held erect by a spring y so as to deliver the lowest of a vertical pile of cigarette packets or other articles. On the return movement of the member a the flap moves downwardly so as to pass under the articles. Fig. 8 shows the member a connected to the shaft b by a lever l<1>, m<1> operated by a coin, ball, or token against the action of a spring p<1>. The part l' of the lever is pivoted to the part m<1> about a vertical action and the two parts are normally held in line by flat springs n<1>. At the end of the movement of the member a the part l<1> engages a stop and is moved laterally to release the coin.
Patent GB-115559-A (GB)
Title: Improvements in and relating to Friction Roller Device for Revolving Screens and the like.
IPC: E06B9/50
Filed: 1917-08-23
Abstract: 115,559. General Seating Co., and Dismore, A. V. Aug. 23, 1917. Reel and web apparatus.-A friction device for the rollers of window blinds, tramway and railway destination indicators, &c., comprises a screwed spindle 1 fitted in the end of the roller and having mounted on it metal washers 2, a metal disk 7, a leather washer 3, a wooden block 4, a spring 5, and nuts 6. The wooden block 4 is secured to the roller by screws 15, and the metal disk 7 is notched to engage a fixed pin on the supporting bracket or other fixed part.
Patent GB-119263-A (GB)
Title: Improvements in or connected with the Discharge of Cargo in Bulk from Barges or Vessels, and the Delivery thereof.
Inventor: MUSKER ARTHUR
IPC: B65G67/00
Filed: 1917-08-24
Abstract: 119,263. Musker, A. Aug. 24, 1917. Elevated structures carried by pontoons; vessels modified for loading and unloading; pontoons and lighters, adapting for loading and unloading ships.-Coal, ore, grain, or like cargo in bulk is transferred from barges 2 to a vessel 1 by a bucket 3 which is suspended and controlled by ropes 7, 8 so arranged that the bucket can be raised or lowered and also moved across the barge. The material is delivered into the vessel through side ports and shoots 5, Fig. 1, directly over which are arranged the derricks 4 supporting the lifting &c. tackle. The hoisting rope 7 and drag rope 8 are actuated by a winding engine 9 placed on a pontoun 10, or on the quay 12, or on the vessel. The derricks 4 may be mounted on the quay, or carried by the mast 20 of a pontoon 10<x>, Fig. 2. The mast can rotate about a vertical pivot 19 and supports a vertically adjustable hopper 5<x> and shoot 16. The derrick 4 is pivotally connected to the mast and is raised and lowered by tackle 18. The machinery-carrying pontoon 10<x> and the barge 2 are temporarily connected during the raising of the bucket by the engagement of racks 21, 23 secured to the pontoon 10<x> and barge 2, respectively. Springs 26 normally keep the racks out of engagement. Specification 110,467 is referred to.
Patent GB-1236897-A (GB)
Title: Improvements in or relating to compensating circuits
IPC: H04M19/00
Filed: 1970-03-13
Abstract: 1,236,897. Telephone exchange equipment. SOC. ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. 13 March, 1970 [18 June, 1969], No. 12139/70. Heading H4K. Flux produced by standing D.C. in a telephone transmission bridge is neutralized by a current source (specifically a transistor) which is controlled by the standing D.C. to drive an additional winding. As seen in Fig. 3, standing current in the loop AA finds earth over Ra and Rb and in doing so controls a transistor which gates current to earth by a parallel path through an additional winding. In Fig. 4c the additional winding is connected between battery and the positive leg of the loop. Battery may be supplied from the remote end of the loop, Figs. 4a and 4b, not shown.
Patent GB-704508-A (GB)
Title: Improved crane
IPC: B66C13/18
Filed: 1952-05-14
Abstract: 704,508. Load handling jibs. RUTHIERFORD, R. G. May 14, 1952 [May 15, 1951], No. 12182/52. Class 78 (3) A load handling jib 9 which is pivoted at 5 on a rigid frame 3, 7, attached to a tractor at 8, 8<SP>1</SP> is luffed by rods 17 pivoted to the jib at 10 and secured to a bar 18 pivoted to the hydraulically actuated draft links 19.
Patent GB-155173-A (GB)
Title: Improvements in pumps
IPC: F04B33/00
Filed: 1920-05-03
Abstract: 155,173. Sager, S. S. May 3, 1920. Portable h a n d - pumps.-A pump for exhausting fruit jars is formed with a cupped member 10 secured to the cylinder and a resilient washer 11 removably held in the cupped member, for example by a band spring 12. A cover is laid on the jar, and the washer is pressed on the jar outside the cover, which acts as a valve during the exhaustion.
Patent GB-122840-A (GB)
IPC: F24C7/06
Abstract: 122,840. Soc. Anon. Calor. Jan. 24, 1918, [Convention date]. Couplings.-Wire collars l, to which the ends of a resistance wire are connected, have rigid extensions which engage in split terminals n with conical ends, and are secured therein by conical nuts m. The collars form the supports for heating-tubes.
Patent GB-257973-A (GB)
Title: Improvements in change speed gearing for motor vehicles
IPC: F16H3/08
Filed: 1925-05-12
Abstract: 257,973. Caton, C. H. May 12, 1925. Variable-speed gearing yielding two speeds in each of two directions comprises three pairs of toothed gears 4, 16 and 6, 15 and 8, 18, Fig. 1, in constant mesh and a seventh gear 17 which is enmeshed for reversal drives only. The gears 4, 8 are fast on driving and lay shafts 2, 5, respectively. The gears 6, 17 are splined on lay and driver shafts 5, 10, respectively. The gears 15, 16 are loose on the driver shaft. For forward speeds, the pairs 4, 16 and 6, 15 are alone operative respectively. For low speed, the gears 16, 17 are slid into clutch engagement with gear 15 so as to connect gear 16 with shaft 10. For high speed, gears 6 and 17 are slid into clutch engagement so that gear 6 is driven and gear 15 is connected to its shaft. For each reversed drive, the train 8, 18, 17 is operative. On one speed, the shaft 5 is driven directly through clutch 7. On the other speed, the shaft 5 is driven through train 4, 16, 15, 6 by clutching loose gears 15, 16 together. The gearing is suitable for motor-vehicles, and the control shown in Figs. 3 and 4 is adapted so that the track or path extends to right and left of the driver. A control lever 20 for forward speeds serves to rock a quadrant 26 which has two teeth engaging notches in striker sleeves 27, 28 which slide on a guide 29. Pointed spring plungers 37, 38 hold one sleeve fast when the other is being actuated. A lever 21 for reversed driving controls the gear 17 through a sliding striker 35.
Patent GB-800184-A (GB)
Title: Improvements in or relating to interlock mechanisms
Inventor: EMMS SYDNEY ALBERT GEORGE
IPC: H03J5/32
Filed: 1955-04-28
Abstract: 800,184. Locking rods. GENERAL ELECTRIC CO., Ltd. April 27, 1956 [April 28, 1955], No. 12315/55. Class 80 (3). [Also in Group XXXVII] A number of dolly-operated switches are interlocked by a mechanism comprising a series of balls 2 movable along a guideway 5 in a housing 1 which also supports a number of plungers 33, one per switch, the respective one being depressed when a switch dolly 4 is depressed. The balls are pressed together by springs 14, 15 and are so arranged that only one plunger can be fully depressed at a time. The depressed plunger is locked down by a slidable latching bar 20 which engages over a cup-shaped part 19 on the plunger. Depression of another plunger by its dolly causes the bar 20 to be slid, to the right against a spring 23 to release the first plunger so that the first switch is opened before the second is closed.
Patent GB-886779-A (GB)
Title: Caulking cartridge, spout type, end closure
Inventor: BIEDENSTEIN VINCENT G
IPC: F16N3/12
Filed: 1960-04-07
Abstract: 886,779. Cartridges for extrusion guns. R.C. CAN CO. April 7, 1960, No. 12364/60. Class 102(2). A cylindrical open-ended dispensing cartridge 11 for an extrusion gun 1 has a resilient cap, with a spout 8 on one end, which cap collapses under the pressure exerted on the contents of the cartridge by a piston 7 and expands when the pressure is relieved, thereby stopping residual discharge from the cartridge. An end plate 2 of the gun limits the movement of the cartridge towards the spout.
Patent GB-342965-A (GB)
Title: Improvements in grease guns
IPC: F16N5/00
Filed: 1930-04-22
Abstract: 342,965. Grease guns. KREBSER, F., 123, Schaffhauserstrasse, Zurich, Switzerland. April 22, 1930, No. 12410. [Class 102 (ii).] A grease gun comprises a cylinder a fitted with a removable cap e provided with a nipple f for connection to the discharge pipe g. The opposite end is provided with a nipple c and check valve b for supplying compressed air or other gas to the piston d. Modified forms show a similar apparatus as a wall attachment, the piston being provided with a rod extending through the cylinder end so that quantities may be read from a scale. Also a grease drum is shown fitted with the apparatus for discharging it. Reference has been directed by the Comptroller to Specifications 2173/13, [Class 102 (i), Pumps &c.], 13211/13 and 219/004, [both in Class 102 (ii), Water &c., Raising &c.].
Patent GB-790916-A (GB)
Title: Improvements in or relating to side-delivery rakes
IPC: A01D80/00
Filed: 1954-04-29
Abstract: 790,916. Side-delivery rakes. VAN DER LELY N.V., C. April 29, 1954 [May 28, 1953], No. 12424/54. Class 6(3).  A side-delivery rake of the kind having oblique rake-wheels driven by ground-contact, is characterized in that the teeth 17 on each wheel 13 have an elongated ground-contacting portion at their lower ends. As shown in Fig. 2, each tooth has a limited freedom of movement both longitudinally, and in a rotary sense about its axis, and is provided with a returned groundcontacting portion 20. The shanks 17 of the teeth are slidable in spaced bearings 15, 16 on the face of disc-like wheels 13, abutments 18 being carried by the shanks to contact the bearings at the limit-positions ; V-shaped abutments 19 welded to the shanks co-operate with the disc-surface to limit rotary movement of the teeth. The returned portions hang downwardly as each tooth passes its lowermost position and reverse themselves as it rises, thus discharging the crop. In a modification, Fig. 4, (not shown) the teeth are fixed and have groundcontacting portions which extend behind the disc ; a short auxiliary tooth precedes each tooth but does not contact the ground.