baber/WOPTO huggingface dataset:
Patent GB-605582-A (GB)
Title: Improvements in and relating to hoists
IPC: B66B9/10
Filed: 1945-11-02
Abstract: 605,582. Endless-chain elevators. PARKER, Ltd., F., and PARKER, F. W. Nov. 2, 1945, No. 29121. [Class 78 (i)] A portable hoist comprises a mast furnished with an endless chain passing round upper and lower chain wheels, carriages presenting horizontal load platforms pivotally suspended from the chain and means on the carriages which engage guides for the spaced runs of the chain and prevent swinging of the carriages during ascent and descent. In the builder's hoist shown, the mast is of box skeleton construction and is mounted on a wheeled undercarriage 27. In front, and at either side, the mast has pairs of spaced angles 6 forming the chain guides which terminate short of the upper and lower chain wheels 9 and 13. There are four carriages, each comprising a vertical rear frame 16 pivotally suspended at 17 from the chain and a short projecting load platform 18. Spaced upper rollers on the rear of the frame engage behind the rear edges of the chain.guide angles 6, whilst a single lower roller 21 engages the front faces of the angles and has a flange or flanges engaging between them. The carriages are steadied as they pass over the upper chain wheel by rotating arms 22, or a disc, driven from the wheel. During their passage over the lower wheel they are supported by a back plate 23, whilst a guide 24 controls their approach to the chain guide 6. The mast is pivoted at 25 between uprights 26 on the undercarriage 27, and can be lowered on to further uprights 33 for transport, a lock 31 securing it in its collapsed position. A hand winch 39 is provided for raising the mast into its vertical position for use. The lower chain-wheel 13 is driven by an engine 42 on the undercarriage, the drive being through a worm gear 47 and a dog clutch 48 which separates when the mast is collapsed. Material is loaded on to the carriages by means of a roller conveyer 50 which can be attached to the undercarriage and is gapped to allow passage of the carriages so that they can pick up material loaded on to pallets. This conveyer can be folded double for easy stowage, and has pivoted supporting struts at its outer end. A similar unloading conveyer 58 is attached to a bracket 59 which can be moved up and down an upright 60 to the required position by means of a winding drum 61.
Patent GB-224096-A (GB)
Title: Improvements in vacuum operated apparatus for supplying liquid fuel to engine carburetters
IPC: F02M37/02
Filed: 1923-11-19
Abstract: 224,096. Arcy, J. d'. Nov. 19, 1923. Spray carburettors.-The vacuum tank 12 is connected to the fuel reservoir by a pipe 11, to a source of suction by a pipe 13, and to a fuellevel chamber 27 of the carburettor by a valveless feed pipe 26 and a valveless fuel-level regulating pipe 29. When the float 21 rises, it closes the suction connection by means of a valve 15 and the fuel connection by a spring-pressed valve 25. The chamber 27 is open to atmosphere through a U-pipe 31, and when the fuel in the chamber closes the end of the pipe 29, atmospheric pressure is cut off from the tank 12 and flow to the chamber 27 ceases. The suction connection is provid'ed with a non-return valve.
Patent GB-305257-A (GB)
Title: Improvements in or relating to the manufacture or treatment of textile products
IPC: D06H7/22
Filed: 1927-11-02
Abstract: 305,257. British Celanese, Ltd., and Dickie, W. A. Nov. 2, 1927. Tissue-figured fabrics; artificial silk, fabrics containing.-In a process for cutting, trimming, or perforating woven, knitted, &c. fabrics, &c. comprising! yarns, &c. of cellulose acetate or other cellulose esters or ethers, the fabric is treated with a solvent or softener of the cellulose ester, &c. previous to the cutting, &c. of the fabric by means of a hot knife, blade, wire, die, &c., the melting or softening of the edges by the hot cutting, &c. device effecting sealing against fraying or ravelling and the employment of the solvent or softener enabling the cutting, &c. device to be used at a lower temperature, thus avoiding scorching or discolouration. The solvent, &c. should be of high boiling point. Pieces of any desired shape may be stamped out by heated' dies after treating the fabric with solvent, and dies may be employed in the same method to produce decorative or openwork effects in the fabric itself. Figured fabrics woven with a floating weft of cellulose acetate, &c. threads at the back may have the floating tissue removed by the same process, the severed ends becoming sealed, thus preventing looseness. Specifications 281,271, 293,858, and 299,042, [all in Class 42 (i), Fabrics, Finishing &c.], are referred to.
Patent GB-299307-A (GB)
Title: Improvements in pressing machines
IPC: D06F71/06
Filed: 1928-10-11
Abstract: 299,307. Prosperity Co., Inc., (Assignees of Davis, E.). Oct. 22, 1927, [Convention date]. Ironing-presses.-A garment press is provided with means for retarding the closing movement which are normally idle but which are brought into action as the press approaches the final closed position. The means comprise a tension spring 20 anchored at its lower end to an abutment 25, Fig. 1, on the frame 1 to which the counterbalancing or opening springs 28 also are secured. The upper end of the tension spring is connected to the press head lever 7 by a rod 22 having a lost motion connection with the spring as shown in Fig. 4 and secured at its upper end to an abutment 27, Fig. 1, adjustably linked to the lever 7. The retarding means are provided on both sides of the machine, and may be arranged longitudinally within the counterbalancing springs.
Patent GB-258124-A (GB)
Title: Improvements in or connected with roofing tiles or sheets and the like
IPC: E04D3/32
Filed: 1925-11-20
Abstract: 258,124. Turner Bros. Asbestos Co., Ltd., and Turner, S. Nov. 20, 1925. Roofing tiles. - Arched metal strips b', Fig. 1, are arranged to fit under the corrugations of corrugated asbestos-cement tiles. They may be secured to the tile by bifurcated rivets c<2>, Fig. 5, and may have turn-over corners b<4>, Fig. 10, or overlapping tongues b<5>, Fig. 11, to engage the material. The outer edges of the metal strips may be bent over and wired. Specification 111,172 is referred to.
Patent GB-739609-A (GB)
Title: Method of epoxidizing organic esters
Filed: 1953-10-23
Abstract: Esters of unsaturated fatty acids, containing from 12 to 22 carbon atoms are epoxidized by adding acetic acid, aqueous hydrogen peroxide and sulphuric acid to the ester, heating the reaction mixture to a temperature in the range 60-110 DEG  C., the amount of sulphuric acid being between 1/2 per cent and 5 per cent by weight based upon the weight of acetic acid and aqueous hydrogen peroxide used.  The reaction may be performed in the presence of a solvent.  In the examples (a) butyl oleate, (b) soybean oil and (c) butyl cottonoate are reacted according to the process of the invention to give the corresponding epoxy compounds.
Patent GB-499191-A (GB)
Title: Improvements in or relating to milling or other machine tools
IPC: B23Q11/12
Filed: 1937-06-14
Abstract: 499,191. Milling - machines &c. KEARNEY & TRECKER CORPORATION. June 14, 1937, No. 29317/38. Convention date, June 20, 1936. Divided out of 499,137. [Class 83 (iii)] A milling or other machine tool has transmission mechanism including a clutch operated through a hollow shaft 176 which encloses and protects a control conductor 192 extending downwards from a switch 191 to a driving motor 38 mounted in the machine base. The drives for the vertical tool spindle and for the work table and tool head feeds are arranged as described in Specification 499,137 and are derived from the motor 38 which is connected by belt gearing to a driven pulley 42 on a hollow main-shaft 43. Louvred doors 45, 46 provide for ventilating the motor by a fan 49. The driven pulley is connected to shaft 43 by a friction clutch 52 operated from a lever 171 connected through bevel gears 175 to the vertical shaft 176. This shaft is connected by rack-and-pinion gearing 178 to a clutch shifter 179 which operates the bell member 185 actuating the clutch fingers. A braking surface 183 is provided to stop the spindle when the clutch is disengaged.
Patent GB-423849-A (GB)
Title: Improvements in or relating to electric meters
IPC: G01R11/24
Filed: 1934-10-13
Abstract: 423,849. Supply meters. NEHLS, H., 33, Buena Vista Avenue, Hawthorne, New Jersey, and KEISER, D. L., 711, West French Place, San Antonia, Texas, both in U.S.A. Oct. 13, 1934, No. 29390. [Class 37] Two metering elements are connected to the same load and drive a common registering mechanism in the forward direction only, so that if a retarding or reversing influence is applied to one element the other continues to operate at normal speed to drive the registering mechanism. The driving-discs A, A<1> of the separate metering elements drive shafts B, B<1> through worm gearing. These shafts carry ratchets, C, C<1> engaging ratchet-wheels D, D<1> fixed on opposite ends of a shaft E which drives registering mechanism 1. The discs A, A<1> normally rotate at the same rate, but should either disc be stopped or retarded, the other continues to drive the shaft E, which overruns the shaft B or B<1> driven by the retarded element. The incoming supply leads are preferably in the form of a concentric cable F having an inner conductor 3 and an outer braided conductor 4. The inner conductor 3 is connected through one series coil 12 to one load wire 13, the outer conductor 4 being connected through a clamp 9 to the other series coil 14 and thence to the other load wire 15. The potential coils 7, 8 are connected in parallel across the conductors 3, 4. Should any means be applied to cause either disc A, A<1> to rotate in the reverse direction, such rotation is prevented from being transmitted to the shaft E as the ratchet gearing only transmits motion in the forward direction.
Patent GB-1480597-A (GB)
Title: Ultrasonic probe and a method of manufacturing an ultrasonic probe
IPC: A61B8/00
Filed: 1974-07-03
Abstract: 1480597 Ultrasonic probes TOKYO SHIBAURA ELECTRIC CO Ltd 3 July 1974 [3 July 1973] 29430/74 Heading H4J An ultrasonic probe is made from a piezoelectric ceramic plate 11 (Fig. 5) having an electrode 12 on one major face and extending across an end face to cover a minor portion of the opposite major face. A second electrode 13 is on this opposite major face and stops short of electrode 12. The plate 11 is subsequently cut into sections 18 (Fig. 6). Prior to the cutting there are provided two slotted metal plates 14 (Fig. 5), one at each end of the piezoelectric plate 11, having their upper ends turned inwardly at right angles. The upper ends of each plate 14 join all the ribbon parts of such plate 14 together, as do the lower ends. One upper end is soldered to electrode 12 and the other upper end is soldered to electrode 13. Electrodes 12, 13 are preferably of silver and are either baked on or applied by evaporation. The slotted plates 14 are formed by punching or hot etching. In an alternative arrangement (not shown) one of the plates 14 is unslotted and is used as a common connector. An ultrasonic absorber 16 (Fig. 6) is bonded, e.g. by epoxy resin, to the electrode 13 and inturned ends of metal plates 14. The absorber 16 may be of rubber containing ferrite powder or of silicone rubber containing tungsten and/or ferrite. The absorber 16 has attached to it two substrates 15 carrying conductors 17. The bottom part of each metal plate 14 is cut off and the ribbon portions connected to conductors 17. A diamond cutter comprising diamond powder bonded to the periphery of a thin disc is applied to the piezoelectric plate 11 to cut channels through the upper conductive layer 12, the plate 11 and the electrode 13, and preferably to cut small channels in the absorber 16. A plurality of cut piezoelectric elements 18 is thereby provided on an ultrasonic absorber 16, each element 18 being provided with upper and lower electrodes 12, 13 connected to leads. If desired, an insulating spacer may be placed between adjacent elements 18. The upper faces of the elements 18 are flush with each other. In an alternative arrangement (Fig. 7) the upper surface and one end face of element 11 is covered with an electrode 12 while the lower surface and opposite end face is covered with an electrode 13. Electrodes 12 and 13 are insulated from each other. An ultrasonic absorber 16 is bonded to the underside of element 18 by epoxy resin. Slotted metal plates 14 are bonded to the electrode 12 at one end face of element 11 and to the electrode 13 at the opposite end face. Reinforcing members 21 are placed on the metal plates 14. The structure is cut with a diamond cutter as in the embodiment of Fig. 6.
Patent GB-1340715-A (GB)
Title: Egg trays
IPC: B65D85/32
Filed: 1971-06-23
Abstract: 1340715 Egg trays GORDON MERRET & SON Ltd 23 June 1971 [29 June 1970] 29469/71 Heading B8P A nestable moulded egg tray comprises rows of hollow, convex protuberances 5, a depression for an egg being defined between each group of four protuberances, the tray material being such that' each egg is resiliently supported independently of its neighbours. The protuberances are connected by main ribs 13 and are each strengthened by a pair of ribs 28 provided above each main rib 13. Depressions 30, which may be flat or concave, increase the contact area between the protuberances 5 and an egg. Pimples 9 on the flat upper surfaces 8 of the protuberances 5 engage hollows 10 on the underside of the flow 7 of the depressions when two trays are oriented at 90 degrees to each other and stacked. Two side edges of the tray have cut-outs (24) to facilitate handling and the tray may be of plastics material 1 inch thick.
Patent GB-748766-A (GB)
Title: An arrangement for feeding a direct-current motor from a.c. mains through grid-controlled rectifier
IPC: H02P7/26
Filed: 1952-11-21
Abstract: 748,766. Control of D.C. motors. LICENTIA PATENT-VERWALTUNGS GES. Nov. 21, 1952 [Nov. 22,1951], No. 29476/62. Class 38 (4). [Also in Group XXXVII] The invention relates to speed control of a reversible D.C. motor supplied through a gridcontrolled rectifier, and provides for armature current limiting and regenerative braking. As shown, the armature 1 is supplied through a grid-controlled rectifier 2, and the field 12 is reversibly supplied through rectifiers 13a, 13b. A manual control lever 5 moves contacts over an upper track 4 providing a speed reference voltage and a lower track connected to a field reversing relay 11. The speed error voltage comprises the difference between the armature voltage and the reference voltage from potentiometer track 4 and is applied through a valve amplifier 8 to the grid control device 9. A current transformer 15 in the A.C. supply line provides a signal representative of the armature current which is applied to the grid circuit of the amplifier 8 to apply a limiting bias when its magnitude exceeds that of a reference source 18. At the end position of the control lever 5 resistance is introduced into the field control circuit to increase the motor speed. Contacts 20a, 20b are operated by a relay 23 across the motor armature or a relay 22 in the grid control circuit to short-circuit these field control resistors until full armature voltage is established. In a modification, Fig. 2 (not shown), regenerative braking is used to slow the motor for reduced speeds (instead of for reversing only), and a step-by-step relay controlled by a relay 27 in the grid control circuit reverses the polarity of the field every time the error signal falls to zero.
Patent GB-262117-A (GB)
Title: Improvements in or relating to water flushing apparatus
IPC: E03D1/08
Filed: 1926-11-24
Abstract: 262,117. Naamlooze Vennootschap Handelmaatschappij R. S. Stokvis & Zonen. Nov. 25, 1925, [Convention date]. Siphon-discharge water-waste preventers.-The flow is started by means of a jet of water produced by a push-button 9, Fig. 1, the siphon-discharge limb being provided with a contraction in the form of a Venturi tube 13, or a helical internal rib 14, Fig. 2.
Patent GB-1102667-A (GB)
Title: Improvements relating to face shovel excavators
Inventor: VIKSTROM INGVAR NILS
IPC: E02F3/407
Filed: 1965-07-14
Abstract: 1,102,667. Face shovel excavators. EFFCO S. FRANZEN & CO. AKTIEBOLAG. 14, July, 1965, No. 29850/65. Heading E1F. In a face Shovel excavator the shovel which has a centre of gravity located ahead of its pivotal connections with a yoke at the end of a vertical swingable arm is releasably locked to the yoke by at least one spring loaded bar mounted on the yoke to engage in a recess in the bucket and to be released by an operator by a wire actuated lever mounted on the arm.
Patent GB-794057-A (GB)
Title: End anchorages for tension members in structural engineering
IPC: B28B23/04
Filed: 1955-10-19
Abstract: 794,057. Reinforced concrete. KOHLER, F. Oct. 19, 1955 [Oct. 20, 1954], No. 29854/55. Class 20(4) [Also in Group XXII]  An end anchorage for a reinforcing member, such as in prestressed concrete, comprises an anchoring element 3, Fig. 1, joined to the member by longitudinal fillet welds 2, extending over the whole length of the matching surfaces. The element 3 may be of cruciform cross-section the four rods 1 constituting the reinforcing member being welded in the four corners Fig. 1a. The outer end of the element 3 may be externally screw-threaded at 6, for the attachment of a hydraulic prestressing ram, and internally screw-threaded at 9. The element 3 bears on the fixed abutment with the interposition of spacers 4 and bearing plates 5, the spacers 4 either having wedgeshaped matching surfaces or being oblique on one side only and bearing against an obliquely-cut end face of the element 3. In a modification the inner end of element 3 is externally threaded and receives a nut which bears against a plate 5, the outer end of the element 3 being of reduced thickness and externally threaded. In another modification, Fig. 3, the element 3 has four lugs 10 wfhich surround rods 1, the four large fillet welds 2 being provided. Alternatively eight small fillet welds may be formed.
Patent GB-1390083-A (GB)
Title: Rollers
IPC: B65G39/04
Filed: 1972-06-27
Abstract: 1390083 Conveyer rollers T G BRUNES 27 June 1972 [29 June 1971] 29941/72 Heading B8A [Also in Division F2] A conveyer roller 1 (e.g. one of three on a base-frame supporting a troughed belt), comprises a sleeve 22 (e.g. of natural rubber), encircling and supported by cylindrical elements 8, Fig. 3, clamped axially (e.g. by bolts 10 in aligned holes 14), between end members 9 on a shaft 5, there being a bearing 7 at each end located by (e.g. a shoulder 6 on), the shaft and (e.g. a flange 18 on), the end member 9. The end member 9 may have a flange 16 forming an extension of the outer surface of the elements 8, alignment of this surface and the holes 14 being provided by projections 15, 17. To protect the bearings 7 there may be seals 18 and a plate 21 as shown. The sleeve 22 may be glued to the elements 8 whose outer surfaces may have axial grooves.
Patent GB-1457844-A (GB)
Title: Flat knitting machine
IPC: D04B15/78
Filed: 1974-07-05
Abstract: 1457844 Knitting machines EMPISAL KNITMASTER LUXEMBOURG SA 5 July 1974 [7 July 1973 11 May 1974] 30030/74 Heading D1C Patterning is carried out in a flat, e.g. hand, knitting machine by a system including a reading head 16 on the carriage 13 which contactlessly scans a pattern data carrier 14 and stores the data in mechanical form, by selectively setting through an electromagnet 29 bistable selector levers of a storage dial 17 or 18, for controlling the needles the system also comprising a pulse generator such as a second reading head 20 which scans markings 19 having the same pitch as the needles for producing pulses at intervals corresponding to the movement of the carriage through successive distances of one needle pitch and a gating circuit 32 which transmits a signal or signal change to the electromagnet 29 in response to an output from the head 16 only when there is also present a pulse from the head 20, thereby avoiding uncertainty over the scanned information. The storage dials 17, 18 are set and control the needles, respectively, during alternate strokes of the carriage. A limit switch 30 connects the circuitry to the appropriate electromagnet 29. An inverting switch 25 allows the pattern to be reversed. In an alternative embodiment three reading heads responsive to different colours on the data carrier 14 and scanning the same point feed information to a colour data store as well as to the gating circuit, the colour data store determining in turn which of three coloured yarns is fed to each needle.
Patent GB-272103-A (GB)
Title: Journal bearings
IPC: B61F15/02
Filed: 1926-11-27
Abstract: 272,103. Jaeger Akt.-Ges., G. & J., and Schulz, H. Nov. 27, 1926. Lubricant conveyed by mechanical means.-The bearing surface of an axle-box has wedgeshaped lubricant spaces d tapering towards the line of load c and having shoulders e supporting the wedges of lubricant and preventing lateral movements of the journal a. A head p bolted to the journal a and taking the end thrust has a disc portion h dipping into lubricant in the axlebox. An oil scraper i, Figs. 6 and 8, having sharp curved surfaces l, and guided in a boss k rests on the disc h and scrapes lubricant therefrom and leads it into passages g to the wedge shaped spaces d. At slow speeds of rotation a drip nose n leads lubricant from the scraper i to the passages g.
Patent GB-448384-A (GB)
Title: Improvements in rotary valve internal combustion engines and pumps
IPC: F01L7/02
Filed: 1935-10-31
Abstract: 448,384. Compressor valves. CROSS, R. C., 33, Midford Road, Odd Down, Bath. Oct. 31,1935, No. 30088. [Class 8 (i)] [See also Group XXVII] In multicylinder pumps having rotary distributing-valves 1 arranged along the top of the cylinders in a split housing 3, 4, the cylinders having axial movement against the action of resilient pads 9 between the halves of the housing, for example, as described in Specification 448,368, this axial movement is allowed for by casting the cylinders with thin flexible portions 4a connecting their upper ends. The water jacket surrounding the cylinders is formed by side plates 18 held together by bolts 16 passing through resilient bushes 17 in split bosses 19 formed at the bottom of the cylinders. The split bosses may be replaced by corrugated flanges, and the side plates may be secured at their upper ends by screwed rods 20. The ends of the valve are sealed by flanges 14 with resilient packing 15. Raised annular seatings 13 may be provided at the top of the cylinders as described in Specification 448,383, or springy lip scatings as described in Specification 373,660, [Group XXVII], may be used.
Patent GB-1309312-A (GB)
Title: Indium doping
IPC: G03G5/08
Filed: 1970-06-22
Abstract: 1309312 Arsenic selenium indium alloys - coating by vapour deposition XEROX CORP 22 June 1970 [23 June 1969] 30097/70 Headings C7A and C7F [Also in Division H1] An alloy consists of in per cent by weight Indium 0À001 - 0À2 Arsenic 0À1 - 50 Selenium balance The alloy may be coated on to a conductive substrate such as brass, aluminium, gold, platinum, steel, metallized paper, plastics sheet with an aluminium or copper iodide coating on glass with a chromium or tin oxide coating. The substrate may be rigid or flexible and in the form of a sheet, web or cylinder and may be coated with plastics material. The alloy may be coated by applying in a molten condition or by vacuum evaporation at 10<SP>-4</SP> - 10<SP>-7</SP> Torr or to a substrate at 50 - 200‹ C which may be water cooled. For this purpose crucibles of quartz, molybdenum or stainless steel may be used. The coating thickness may be up to 300Á. Where an aluminimum cylinder is coated, it may be rotated. The coated product may be used in xerography. (See Division H1.)