baber/WOPTO huggingface dataset:
Patent GB-1175646-A (GB)
Title: Improvements in Ploughs having Hydraulic Trip Bottoms
IPC: A01B61/04
Filed: 1968-04-18
Abstract: 1,175,646. Agricultural implements; hitches. DEERE & CO. 18 April, 1968 [18 April, 1967], No. 18413/68. Headings A1B and A1P. A plough for attachment to a tractor comprises a main frame with an obliquely extending hollow box frame 22, with plough bottom assemblies 52 swingably interconnected to the frame 22 and an extensible and retractable hydraulic cylinder 54 associated with each plough bottom assembly 52 and connected to a manifold disposed within the main frame 22 and hence to a source of fluid and fluid pressure mounted on the tractor 10. The plough bottom assemblies 52 are connected to the frame 22 by mounting beam structures 56 on which are mounted the hydraulic cylinders 54. The hydraulic cylinders are connected to the manifold 174 by fluid lines (182) passing through fittings (184) Fig. 2 (not shown) in the main frame. The manifold is connected by lines 160, 162 to a pair of fluid outlets 164, 166 on the tractor, there being a check valve 176 and a relief valve 178 interconnected with the manifold 174. When fluid is introduced into line 160, manifold 174 and lines 182 by manually operating valve 172 the cylinder biases the plough bottoms into their working positions. If the plough bottom hits an obstruction it trips upwardly away from stops (104) (102) Fig. 6 (not shown) displacing the oil through valve 178, line 168 to a reservoir 170 on the tractor. The wheel 110 supporting the rear end of the frame may also be raised and lowered by means of cylinder 136 connected by fluid line 162 to reservoir 170. To raise the plough for transport rock shaft 46 rotates to raise the forward end and manually operated valve 172 is moved to connect outlet 166 with the pump P and hence extending cylinder 136 and raising the rear end. The main frame 22 is attached to the tractor by means of a hitch comprising a forwardly extending bar 20 rigidly secured to main frame 22 and a cross beam 24 secured to hitch bar 20 by plates 30, 31 attached at the end of shaft 26.
Patent GB-111572-A (GB)
Title: Improvements in Pressure Releasing Devices for the Rollers of Clothes Wringes.
Inventor: HEMENWAY JOHN FRANCIS
IPC: D06F45/00
Filed: 1916-12-22
Abstract: 111,572. Hemenway, J. F. Dec. 22, 1916. Wringers, roller-separating arrangements for.- The slidably mounted top-bar carries a pair of sliding bolts which are retracted by a push-button acting on a flexible connexion between the bolts. The bolts 12 have T-shaped heads 14 engaging with T-shaped slots 11 in plates 10 mounted on the side bars. The push-button 20 may press directly upon the chain 17, or it may be formed with an eye 23, Fig. 3, through which the chain passes.
Patent GB-204776-A (GB)
Title: Improvements in stands for displaying goods in shop windows and other places
IPC: A47F5/10
Filed: 1922-07-06
Abstract: 204,776. Shepherd, H. B. July 6, 1922. Rack stands.-A folding stand for displaying chocolate boxes &c. comprises two uprights a connected at their tops by a pivoted U-shaped piece c and provided with a number of cross-pieces l, the ends l<1> of which are bent at right-angles and pivoted at m to the uprights a, said ends being provided with hooks l<2> to engage the uprights which are supported in an inclined position by pivoted struts f and hooked stays g. One or more detachable horizontal bars o having vertical attachments r and studs s to support boxes and notches p to engage a cross-piece l may be provided. In a modification shown in Fig. 9, the top cross-piece c is integral with the uprights a to the lower ends of which are pivoted rearwardlyextending base pieces t each carrying a pivoted stay f with a receased free end engaging one of a number of pins i provided on the uprights. In a further modification shown in Fig. 13, the pivoted cross-pieces ! l are formed integral with or to support trays w<1> and the stand is supported by pivoted stays f and slotted struts g.
Patent GB-787760-A (GB)
Title: Improvements in the manufacture of polyester resins
IPC: C08G63/668
Filed: 1955-06-28
Abstract: A polyester, in the form of a viscous liquid, is the reaction product of (a) a straight chain dibasic acid having two to eight carbon atoms and up to two ether oxygen atoms between the carboxyl groups; (b) a polyethylene glycol of formula HO(CH2CH2O)nH, where n is greater than 1; and (3) an aliphatic polyhydroxy compound containing more than two hydroxyl groups and in an amount between 0.03 and 0.2 mol. per mol. of glycol.  Preferably the hydroxyl number of the polyester is up to 200 (preferably 30-90) and the acid number is up to 50 (preferably 0-10).  The resin may be made by heating the reactants (a), (b) and (c) at 200-250 DEG  C. first at atmospheric pressure and then under vacuum or by heating the hydroxylic components with an aliphatic ester of the dibasic acid.  The polyesters may be cross-linked by heating with a dibasic acid or by reacting at room temperature with a dialdehyde, a divinyl ether, a bifunctional unsaturated carbonyl compound, a bis-epoxide or a polyisocyanate.  Examples disclose polyesters obtained by reacting (1)-(3) adipic acid, diethylene glycol and pentaerythritol, trimethylol propane or sorbitol.  (4) Sebacic acid, triethylene glycol and pentaerythritol.  (5) Succinic anhydride, diethylene glycol and pentaerythritol.  (6) Azelaic acid, polyethylene glycol (M.W. 400) and pentaerythritol.  (7) Succinic anhydride, triethylene glycol and triethanolamine.  (8) Adipic acid, triethylene glycol and pentaerythritol.  (9) Diglycolic acid, triethylene glycol and pentaerythritol.  (10) Glutaric acid, diethylene glycol and pentaerythritol.  (11) Ethylene bis (glycolic acid) diethylene glycol and trimethylolethane.  (12)-(14) Adipic acid, diethylene glycol and trimethylol ethane, glycerol or a polyol having the formula: <FORM:0787760/IV (a)/1> (15) Dimethyl adipate, diethylene glycol and glycerol in presence of lead monoxide as catalyst.  In addition to the acids mentioned a mixture of acids may be used (e.g. adipic and diglycolic or adipic and sebacic).  The resins are compatible with polyvinyl alcohol.
Patent GB-575006-A (GB)
Title: Improvements in or relating to gun mountings
IPC: F41A27/14
Filed: 1943-11-09
Abstract: 575,006. Gun mountings. STREADER, W. J., TATE, A., and TATE, A. E. [trading as TATE BROS.]. Nov. 9, 1943, No. 18630. [Class 92 (i)] A gun mounting comprises a cradle for the gun barrel mounted to swing about horizontal and upright axes, a track fixed to the stationary part of the mounting and having up-and-down deflexions shaped in accordance with the obstacles to be avoided and disposed around and close to the upright axis, and an arm on the cradle arranged to engage the track so as to tilt the cradle for the gun barrel about the horizontal axis. In one construction the gun cradle 10, Fig. 1, is pivoted at 11 for elevation on a fork 12 rotatable about a vertical axis in a pedestal 13. Around the pedestal is a rail 16 to which is clamped a guide plate 17 having its upper edge shaped in accordance with the disposition and size of any obstacles to be cleared. To the forward end of the cradle is pivoted at 22 a bowed arm 20, the lower end of which is fitted with a pin or roller engaging the upper edge or track of plate 17, thus ensuring that the gun cannot be depressed beyond the limits determined by the contour of the plate. Guide means for the lower end of arm 20 consists of a slotted channel 24, supported by members 26 extending from a shield 14 attached to a bracket 15 on the fork 12 and by further members 27 secured to the bracket 15. The pin carrying the roller engaging plate 17 is extended through the slot of channel 24 and carries a further roller engaging with the sides of the channel. In a modification, Fig. 4 (not shown), the arm 20 depends from the cradle on the opposite side of the elevation axis and engages the lower curved edge of a plate 17 fixed to the gun pedestal. In the case of a gun adapted to be lowered. bodily within a barbette 31, Fig. 6, the fork 12 is carried on the upper end of a hydraulically-operated plunger 32, upon which is also mounted for rotation with the gun a plate 38 apertured to permit the passage of a pin 35 connected to a plate rotatably mounted on the pedestal 28. The pin, by this arrangement, is always maintained below a part of the gun and when the plunger 32 is lowered the pin engages such part and maintains the gun at a sufficient angle of elevation to clear the barbette. In the elevated position of the gun the plate 17, and roller 19 on arm 20 limit the movements of the gun, the plate being carried by uprights 39 slidably engaging with the edge of plate 38 and being prevented from rotating around the pillar by keys 42. In a further modification, Fig. 7 (not shown), a gun mounted within a barbette as in Fig. 6 has a guide plate 17 with a curved upper edge as in Fig. 1, and is connected to the plunger by a lost motion connection.
Patent GB-153075-A (GB)
Title: Improvements in floating vessels
IPC: B63B3/00
Filed: 1919-07-28
Abstract: 153,075. Gatewood, W. July 28, 1919. Framing. - Longitudinally framed vessels are constructed with the longitudinal frames bracketed at their ends to the bulkheads and supported by transverse frames so spaced as to enable the scantlings of the longitudinals to be reduced without decrease of strength of the ship structure. Figs. 1 and 2 show two constructions. In that shown in Fig. 1, the plating 17 is supported by closely-spaced longitudinals 4 supported by deep transverse frames 1, the frames being situated closer to one another than to the adjacent bulkheads. The longitudinals are further bracketed to the bulkheads, which are themselves supported by longitudinals 6 and deep frames 3 in a manner similar to that of the plating 17. In the construction shown in Fig. 2, the transverse frame is equidistant from the two bulkheads, and in this case is bracketed to the longitudinals. These constructions maintain the strength and permit lighter scantlings in the longitudinals, reducing the total weight of the hull. The vessels are erected by first bringing one of the transverse members into position, then the remaining transverses and longitudinals, next temporarily securing the longitudinals to the transverses until the plating is in place, and finally securing both longitudinals and transverses to the shell plating before permanently securing the longitudinal frames to the transverse frames.
Patent GB-513379-A (GB)
Title: Improvements in or relating to electric insulators
IPC: H01B17/20
Filed: 1938-06-23
Abstract: 513,379. Insulators. CORNING GLASS WORKS. June 23, 1938, No. 18680. Convention date, Sept. 7, 1937. [Class 36] [Also in Group XV] To prevent radio interference from a glass or glazed power transmission-line insulator conducting coatings A, formed by spraying the insulator while it is hot with a solution of a metallic salt, or exposing it to fumes of the salt, are provided at the places of contact of the insulator with conductors, the conducting coatings being protected against the weather by similarly formed nbn-conducting coatings B covering the conducting coatings and preferably extending beyond them. The conducting coatings may be formed by spraying the hot insulator with stannous chloride, stannic chloride, stannous sulphate, stannic sulphate, or stannous nitrate, or by fuming the hot insulator with stannous chloride, stannic chloride, or stannous iodide. Instead of using tin compounds, the hot insulator may be fumed with silicon tetrachloride, or the chloride or bromide salts of tungsten or molybdenum, and then heated in a reducing atmosphere. The non-conducting coatings may be formed by spraying or fuming the hot insulator with a chloride of iron, titanum, aluminium or silicon. Specification 340,371 and U.S.A. Specifications 1,964,322 and 2,118,796 are referred to.
Patent GB-587593-A (GB)
Title: Machine for use in folding textile and other sheet material
IPC: D06F89/00
Filed: 1944-09-30
Abstract: 587,593. Folding sheet materials. TULLIS, Ltd., D. & J., and WILSON, R. Sept. 30, 1944, No. 18747. [Class 42 (ii)] In a folding machine having an endless circulating apron extending from the feed end to the delivery end of the machine at least two electric switches are located in the path of and adapted to be operated by an article, such as a textile sheet, travelling upon the apron. A swing plate 22, preferably operated by a solenoid 25, Fig. 1, is controlled by two switches 19, 21 arranged in series and located in the path of the article so that the leading portion of the article is raised and held against an abutment 24, Fig. 3, when both switches are closed. While the leading portion is so held the mid-portion is carried forward by the apron 10. Upon the switch 19 being opened when the tail end of the article passes forward from it the member 22 is lowered and the leading portion is released to fall substantially into line with the tail end. The mid-line forms a new leading end and the article is passed forward by the apron 10 between a supplementary apron 32 and a supporting plate 31 to be folded again by a second folding unit including switches 26, 27, solenoid 30 and swing plate 28. The apron 10 preferably comprises a number of narrow bands spaced apart and the swing plates 22, 28 may have forwardly projecting fingers which, in their lower position, pass between the bands. A dashpot may be provided in association with each solenoid for controlling the speed of operation of the swing plates. Should it be necessary to pass an article through the machine without folding, a control switch is closed to energise the circuit independently of the switches 19, 21, 26, 27, thus allowing the article to pass without folding.
Patent GB-426567-A (GB)
Title: Improvements in variable-speed gearing
IPC: F16H61/02
Filed: 1933-07-01
Abstract: 426,567. Variable speed gearing. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Reo Motor Car Co. ; 1331, South Washington Avenue, Lansing, Michigan, U.S.A.) July 1, 1933, No. 18748. [Class 80 (ii)] In a transmission mechanism having in combination a drive shaft 27, a driven shaft 81, an intermediate shaft 32, automatically controlled variable-speed mechanism 98, 101, 107, 131 between the intermediate shaft and one of the other shafts and manually selective gear mechanism 192, 201, 194, between the intermediate shaft and the other of the said other shaft, the manually selective gear mechanism is actuated by a pair of concentrically mounted sleeves 209, 211, and a shift lever 216 selectively operating these sleeves. The sleeves are slidably mounted on a shaft 212 and are integral with forks 198, 208, actuating the gear 194 and the gear cluster 201 respectively and can be connected to move as a unit or independently by a transversely extending pin 232 operated by a rod 236 inside the shift lever 216. For the manual selection of reverse gear a collar 270 on the intermediate shaft is adapted to engage with and prevent rotation of a gear carrier 107 of the automatic variable speed mechanism to prevent operation of the same.
Patent GB-645105-A (GB)
Title: Improvements in phonograph records
IPC: G11B3/70
Filed: 1948-07-13
Abstract: Isobutylene-acrylonitrile copolymers (preferably containing 65-85 per cent acrylonitrile and 35-15 per cent isobutylene) are moulded to form gramophone records.  Co-polymerization may be effected in oil phase or aqueous emulsion at elevated temperature using catalysts, e.g. hydrogen peroxide, potassium persulphate, benzoyl peroxide, acetyl peroxide or tertiary butyl hydroperoxide, regulators, e.g. dodecyl mercaptan, emulsifying agents, e.g. dioctyl sodium sulphosuccinate, a soap or formaldehyde condensed with the sodium salt of naphthalene sulphonic acid.  The resulting copolymer of concentration 10-50 per cent by weight is flocculated, e.g. by brine, filtered, washed and dried.  In a modified co-polymerization process acrylonitrile is added gradually.  Plasticizers, dyes, pigments, fillers or other resins may be added before moulding.
Patent GB-576463-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H17/16
Filed: 1944-10-02
Abstract: 576,463. Snap-action switches. WALSALL CONDUITS, Ltd., and GOUGH, E. Oct. 2, 1944, No. 18769. Addition to 568,106. [Class 38 (v)] In a switch of the ceiling or pull-operated type, a snap-action switch of the character described in the parent Specification is operated by a pivoted actuating lever 13 of metal or insulating material having a transverse slot 18 with divergent ends 19, the said slot being engaged by a pin or roller 34, mounted on one end of a lever 33, the other end of the latter being pivotally connected to a lug 31 on a spring - loaded piston 27 mounted in a cylinder 26 carried by a bridge-piece 21, 23. An actuating chain 28 is connected to a second lug 32 on the piston. The figure shows the position of the switch parts immediatelyfollowing a pull on the chain 28 and before release of the latter. On release of the chain, the piston is urged upwards by the spring 30 and transfers pin 34 to the uppermost end of slot 18 in readiness to actuate the switch subsequent to a further pull on the chain. Lugs 31, 32 are formed integral with one another and have limited sliding movement in the piston 27, whereby a snap movement is imparted to the V-shaped ends of lever 33.
Patent GB-1476951-A (GB)
Title: Electronic calculators
IPC: G04G5/00
Filed: 1974-04-30
Abstract: The electric pocket calculator (10) has a keypad (12) with digit and control keys, and a display (14). Its clock operation depends on executing in each case as many instructions in a clock sequence as are necessary to last 0.01 seconds. If the oscillator frequency is 200 kHz, and data is processed bit-serially, the cycle time for a micro-instruction containing 14 numbers coded with 4 BCD digits is 280  mu s. 35 of these micro-instructions take 0.01 s. Dummy micro-instructions are therefore included in the loops for clock operation, corresponding to the difference between 35 and the number of micro-instructions which are necessary to execute the loop. The calculator can be used as a clock or a stopwatch, with display and storage of time intervals. The time of day is set in the display in hh.mmssdd form, and clock operation is started by pressing key (118) followed by (116). CHS is for start-stop operation; EEC scans the hundredths of second part dd in and out; CLX sets the clock to 0;  epsilon + stops it. Pressing a digit key stores the intermediate time in the appropriate memory register, to be recalled when clock operation is dormant. <IMAGE>
Patent GB-714469-A (GB)
Title: Improvements in or relating to oil pipe installations
Inventor: WRIGHT ALFRED
IPC: F16L53/38
Filed: 1952-07-25
Abstract: 714,469. Electrically-heated pipes. McANDREW, WORMALD & CO., Ltd. July 22, 1953 [July 25, 1952], No. 18926/52. Class 99 (2). [Also in Groups XI and XIII] At least one pipe 1 conveying oil and enclosed within a chamber comprising a lining 2 of apertured metallic sheet or metallic network, e.g., perforated or slotted metal or expanded metal, and an insulating cover 3, is heated by means such as electric conductors 5 located within the chamber and in contact with the lining. The pipes may be supported by spacers or clips 4 to maintain the correct spaced relationship of the pipes, and sections of the wall of the chamber may be removable for access to the pipe joints 6.
Patent GB-596187-A (GB)
Title: Improvements relating to insecticides
IPC: A01N65/00
Filed: 1945-07-24
Abstract: Substances for use as insecticides are recovered by contacting fresh or green pyrethrum flowers with a solvent, such as kerosene or petroleum ether, that is immiscible with water, and separating the solvent from the exhausted flowers.  The extraction may be carried out at substantially 54 DEG  C., and the flowers may be disintegrated prior to extraction.  The extracts may be concentrated.
Patent GB-517360-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B29/02
Filed: 1938-07-07
Abstract: 517,360. Forced-flow steam boilers. LA MONT, W. D. July 7, 1938, No. 18998/39. Divided out of 517,323. Drawings to Specification. [Class 123 (ii)] In a water tube boiler a feed heater has an inlet valve controlled in accordance with the water level in the drum, and circulation water is conducted under the control of a valve in a bye-pass into the feed pipe to protect the feed heating tubes from excessive heating when the feed supply is low, as described in Specification 517,323.
Patent GB-169048-A (GB)
Title: Improvements in and relating to automatic grinding machines
IPC: B24B9/12
Filed: 1920-07-06
Abstract: 169,048. Knight, A. B. July 6, 1920. Disc apparatus.-A machine for grinding the ends of glassware, in which a number of work-holders are automatically retracted from the grinding-elements seriatim, comprises a bed 10 formed as a trough and provided with an outlet pipe. Each unit comprises bearings 16 supporting a tubular spindle carrying a pulley 17 and a grinder arranged within a hous. ing 20. A pair of guide-rods 21 slide in sleeves 22, 23 and support a reciprocating carriage 25 which is moved towards its grinder by a weight 76 chain-connected to the rods 21. A chuek 29, having an outer ring 31, which may be provided with cushioning means, and a fibrous inner ring 30 for preventing breakage of glassware, is attached to a tubular head 27 on the carriage 25. A rod 84 secured to the carriage 25 and slidable through a bracket 24 has on its end an adjustable nut 36, which on engagement with the bracket 24 limits the inward movement of the carriage 25. A lever 41 carries a pivoted roller 43, through which freely passes a rod 38 secured to the carriage 25. Outward movement of the lever 41 causes the roller 43 to contact with an adjustable nut 40 on the rod 38 and retracts the carriage 25 from the grinder. A roller 49 on the lower end of each lever 41 contacts with a cam 51 on a shaft 50, which is driven from a shaft 54 through a belt 56, fast and loose pulleys 57, 62, and worm, gear. An ejector rod 33 extends through the head 27 and is attached to the bracket 24. As described in Specification 165,668, the grinders are driven from a pulley 64 on the shaft 64 by a belt 18 passing over the pulleys 17 and under idler pulleys 68, 69, and a water supply pipe 19 is connected to a pipe extending through the hollow spindle carrying the grinders. The rod 34 has a flattened part 37 to engage a latch which locks the carriage in its outer or inoperative position.
Patent GB-128494-A (GB)
Title: Improvements in Bib-Cocks and like Valves.
Inventor: HARRIS ALFRED GEORGE
IPC: F16K27/02
Filed: 1918-11-20
Abstract: 128,494. Harris, A. G., and Rhodes, W. E. Nov. 20, 1918. Lift valves. - A screw actuated lift valve of the kind in which a reciprocating nut secured to the valve member is prevented from rotating by a removable fitting, has the nut member b square or polygonal in cross-section adapted to work in a similarly shaped aperture in the guide-member a. The actuating- screw c has a flange pressed against the top of the guide member by a bonnet d, and is detachably secured to an actuating handle.