baber/WOPTO huggingface dataset:
Patent GB-1444525-A (GB)
Title: Shelf arrangement and bracket therefor
IPC: A47B57/52
Filed: 1975-01-20
Abstract: 1444525 Shelving J GIAMBALVO 20 Jan 1975 2437/75 Heading A4B A shelf 14' or 14" is supported by a pair of brackets 10 or 10' each comprising a resilient angle member having a lower, horizontal limb 17, 17' which is straight over its whole length and passes through apertures in or associated with the shelf to engage an aperture in a support B, and further having an upper limb 12, 12' which extends upwardly at an acute angle to the lower limb and terminates in a hook 15, 15' which engages a further aperture in the support B, the arrangement being such that the two limbs 17, 17' and 12, 12' are pressed towards each other to engage in the apertures in the support B whereafter they spring apart to grip the edges of the apertures. The hook 15 and the end 19 of the lower limb are formed with recesses or notches 13 or 21, 21' to receive the edges of the apertures. The support B may comprise a pegboard or vertical channel members provided with vertically spaced apertures. The lower limb 17, 17' may pass through apertures in flanges 16', 23' of the shelf or may pass through apertures defined either by eyebolts 24 or by staples secured to the underside of the shelf.
Patent GB-948767-A (GB)
Title: N-úÝ-trifluoromethylphenylpiperazine
Inventor: ASH ANTHONY STANLEY FENTON
Filed: 1959-10-20
Abstract: The invention comprises N-m-trifluoromethylphenylpiperazine and its acid-addition salts, and a process for making N-m-trifluoromethylphenylpiperazine by the reaction of m-trifluoromethylaniline with diethanolamine in the presence of hydrobromic acid.
Patent GB-547415-A (GB)
Title: Improvements in and relating to rotary hoeing, cultivating and like agricultural machines
IPC: H01J31/34
Filed: 1941-02-25
Abstract: 547,415. Motor-driven rotary hoes &c. HOWARD, A. C., and ROTARY HOES, Ltd. Feb. 25, 1941, No. 2547. [Class 6 (i)] The transmission gearing from the motor 3 to the road wheels 2 and to the rotary hoe or other implement 79 is encased. From the engine 3, motion is transmitted through a friction clutch to a main shaft 30 mounted in ball-bearings in the casing 1 and thence by bevel-gearing to a cross-shaft 34 to which are keyed slidable pinions 37, 38, 39 of a variable-speed gear. By engagement of one of these with the complementary pinions 42, 43, 44, movement is transmitted to the axle 50 and through slipping clutches to the road wheels 2. A slidable pinion 61 on the shaft may be moved into engagement with a pinion on an inclined shaft 68 passing through a housing 76. The drive is thus transmitted through bevel gearing in the casing 70 to a shaft 73 on the projecting ends of which are carried the rotary hoes or other implements. A shield 4 attached to the casing 1 covers the hoes. Engine, gear and clutch control levers are mounted adjacent to the handles 6, and the skid or w heel support 24 may be adjusted to alter the depth of tilth by the lever 27.
Patent GB-1092303-A (GB)
Title: Improvements in or relating to drafting frames for spinning machines
IPC: D01H5/50
Filed: 1965-01-20
Abstract: 1,092,303. Drafting-apparatus. SKF KUGELLAGERFABRIKEN G.m.b.H. Jan. 20, 1965 [Jan. 25, 1964], No. 2460/65. Headings DID and D1F. Drafting apparatus has means comprising a pointer and scale to indicate the loading of a top roller one of which can be adjusted to bring them into a desired relationship. Loading springs 8 extend between abutments 11 and 10 on a weighting arm 1 and a roller guidearm 3 pivoted to the weighting arm. The abutments 10 are cylindrical members carried by a plate 9 secured to the weighting arm by a threaded bolt 22; the lower abutments are studs fixed in the guide arm 3. In the front of the arm 1 is a casing 12 secured by pins 14 with a window 13 through which can be viewed a scale 21 movable along guides 15 and connected by a member 19 adjustably secured at 20 to the arm 3. Cooperating with the scale is a pointer 18 secured to an upper abutment. With a measuring roller &c. corresponding to drafting requirements at 3, the arms and abutments take up positions corresponding to the desired loading. The stud 20 is slackened so that the scale can be moved to a desired position relatively to the pointer, whereupon the stud is tightened and a working roller is substituted for the measuring roller. If the pointer does not indicate the loading indicated by the measuring-roller, the position of the plate 9 is adjusted by the screw 12 until it does; alternately, other rollers are placed at 5 until one is found which gives the same indication as the measuring-roller. So that the loading of each upper roller carried by the weighting arm 1 can be set at a desired value, the casing 12 may be arranged to be moved from one roller to another and to be connected to the corresponding guide arm. The graduations on the scale can be such that the loading value can be read off directly.
Patent GB-687537-A (GB)
Title: Interpolymers of acrylonitrile and a process of producing the same
Filed: 1951-02-02
Abstract: Copolymers of a major amount of acrylonitrile and a minor amount of N-vinyl imidazole or a substituted N-vinyl imidazole are made by polymerizing the monomers, preferably by continuously adding the monomers to an aqueous solution of a mixture of potassium persulphate and triethanolamine as catalyst.  The N-vinyl imidazoles may be substituted in the 2,4 and/or 5 positions by methyl, ethyl, butyl or phenyl groups, e.g. 2-methyl or 2-ethyl-N-vinyl imidazole.  Solutions of the polymers may be spun or cast into articles, e.g. fibres or films.  Specified solvents are formylpyrrolidone, pyrrolidone propionitrile and dimethyl formamide.  The articles may be dyed with acid wool, azo and their chromium compound and triphenylmethane dyestuffs.
Patent GB-388918-A (GB)
Title: Improvements in dental engine handpieces
IPC: A61C1/12
Filed: 1932-01-29
Abstract: 388,918. Dental handpieces. ANGELL, R. C., Prince Bay, Staten Island, New York, U.S.A. Jan. 29, 1932, No. 2705. [Class 81 (it).] A dental contra-angle handpiece comprises a split tool-holding head, a split elbow separate therefrom, and a sleeve arranged to hold all the parts together to form a rigid structure. The head 1 is split longitudinally in a plane transverse to the axis of the bur and is formed at the end of its neck with a bevelled groove, the base of which comprises four or more plane surfaces 52 .. 55. The elbow 2 is split in a plane at right-angles to the plane of division of the head and is formed with an internal collar having surfaces such as 60, 61 complementary to those on the head. A sleeve 3, in threaded engagement with the elbow, is formed with a bevelled end 65 to engage the conical surface 66 of the elbow and holds the parts thereof together and causes it to grip tightly the parts of the head. The lower section of the head is formed with a shoulder 9, Fig. 9, to receive a bushing 10. The upper section receives a bushing 15 formed with a bearing shoulder 20 for the chuck 21, to which is rigidly secured a bevel gear 25 driven by a bevel gear 42 on a shaft 41 fitted at its other end with a bevel gear 43 driven from the main shaft 46. The chuck 21 is formed with a projection 29 extending into its tool-receiving bore to engage a flattened portion of the tool shank. The tool is locked in place by a pivoted latch 32 mounted in a slot 31 in the head 1 and formed with a recess 35 to engage a groove in the tool shank. The latch is formed with a tail 37 engaging a recess 39 in the elbow 2 when in normal position.
Patent GB-1024283-A (GB)
Title: Fibre cover for fibre drums
IPC: B31B50/59
Filed: 1964-01-22
Abstract: 1,024,283. Fibre drum covers; container Closures. CONTINENTAL CAN CO. Inc. Jan. 22, 1964 [Jan. 24, 1963], No. 2780/64. Headings B8D and B8T. [Also in Division B5] A fibre cover 20 for a drum body 11 has a peripheral pinch portion 28, and a skirt 31, the cover being held to the drum chime by a locking band 21. In one configuration the cover is made from laminated circular discs of different diameters consisting of outer and inner discs 32, 33, having on one side kraft paper discs 42, laminated thereto, and filler discs 34, 35. The discs 33-35 are provided with adhesive on their lower sides and the discs 32-35 are aligned and secured together on a sub-assembly fixture 45 (Fig. 3, not shown), which is provided with removable disc guide blocks 50 (Fig, 4, not shown) and arcuate cut-outs 49 (Fig. 3, not shown) to assist in the assembling and removal of the discs. The flat cover disc sub-assembly 39 is then moulded by heat and pressure in a die (see Division B5) to the required shape. The filler disc 35 may be omitted, or more such discs inserted, but in all cases the filler discs terminate in the shoulder section 25. The inner surface 42 of the cover may be lined with a material such as polythene or aluminium foil.
Patent GB-536561-A (GB)
Title: A device for indicating the opening of the doors of vehicles
IPC: E05B41/00
Filed: 1940-02-26
Abstract: 536,561. Indicating the opening of vehicle doors. DAVIES, W. N. Feb. 26, 1940, No. 2817. [Class 118 (i)] [Also in Group XXV] An indicator 22 pivoted in the outside handle 3 of a vehicle door is raised to position shown by the initial movement of the inside handle to open the door. The inside handle moves a slide which rotates a sleeve 13 provided with cam teeth engaging similar teeth on a sleeve 16 adapted to slide along the spindle 5 and actuate the indicator by means of a rod 18.
Patent GB-1140586-A (GB)
Title: Hydraulic reciprocating pumps
IPC: F04B1/12
Filed: 1966-01-21
Abstract: 1,140,586. Reciprocating pumps. INTERNATIONAL BASIC ECONOMY CORP. Jan.21, 1966 [Jan. 22, 1965), No.2944/66. Heading F1A. A pump comprises a plurality of fixed or variable displacement axial piston pump units, e.g. three, mounted in a common housing and driven by a common shaft 87 through gearing, Fig. 1. Each pump unit comprises a cylinder block 23 axially slidable in the housing to vary the effective stroke of the pistons 32 Fig. 11, which control cylinder inlet ports 25. The delivery valves 38 are mounted in piston members 34 attached to a plate 200. Relative axial movement between cylinder blocks 23 and piston members 34 is limited by stops 272. To vary the effective piston stroke, hydraulic pressure, e.g. from valve means responsive to the pump output, Fig. 10, (not shown), is applied to an annular piston 152, Fig. 1, which acts on the right hand end of the cylinder block to move it leftwards against spring 280, Fig. 11. The rotating plate 124 is of plastics, e.g. nylon. The pump units may be controlled together or selectively, and their outputs may be used together or separately. Reference has been directed by the Comptroller to Specification 1, 013, 680.
Patent GB-524451-A (GB)
Title: Improvements in machines for tendering meat
IPC: A22C9/00
Filed: 1939-01-28
Abstract: 524,451. Tendering meat. FITZPATRICK, H. J. (Maatschappij van Berkel's Patent N.V.). Jan. 28, 1939, No. 3016. [Class 28 (ii)] In a machine for tendering meat, the needlelike tools 27 which are reciprocated to penetrate the meat, are moved also laterally to impart a feed motion to the meat, the compound movement being obtained by a crank 22 and pivoted links 38 which connect the cross-head 24, carrying the tools 27, to stationary pivots 37. The tools 27 are arranged in pairs, each pair being staggered relatively to the next pairs, and work in slots 34 in angle-plates 32 removably secured to the housing 14 by bolts 33. The meat moves over the upper faces of the plates 32, which act as strippers for the tools 27, and a cap-plate 35 of wood, or other relatively soft material, is positioned over the plates 32 to take the thrust of the tools 27. The tools may have fish-tail ends 28, as shown, or may be formed as round punches, or with concave or serrated ends. The plate 35 may have perforations or channels to receive the ends of the tools which may wholly or partly penetrate the meat. The meat is fed to the tools along a shoot 44, which may incorporate an endless feeding-apron, and is discharged over a shoot or apron 45. Guards, for preventing injury to fingers, may be provided in the meat channels, and a shield 48 may be used when the machine is idle, to prevent flies from getting into the meat channel. By placing two or more pieces of the same or different meat, one on top of the other, and passing them through the machine, the pieces are knitted together to form one piece. In a modification, the meat is operated upon both from above and below by two gangs of tools working in unison.
Patent GB-663274-A (GB)
Title: Electromagnetic devices
IPC: H01H51/22
Filed: 1949-02-04
Abstract: 663,274. Electromagnetic relays. SIGMA INSTRUMENTS, Inc. Feb. 4, 1949. [Sept. 16, 1948] No. 3181/49. Class 38 (v). A polarized relay has an armature 21, 22 pivoted centrally at 23 and movable in one direction or the other from the neutral position shown according to the direction of current in the operating winding 11, movement not starting till the full force of one of two biassing springs 24<SP>1</SP> has been overcome, and then proceeding rapidly without any further increase of current till contact is effected with a good pressure at 43. In the form shown, rotation of the armature clockwise will raise the.left of two studs 26 fixed to the armature and carry bodily with it its spring 24<SP>1</SP> and its washer 27 that is pressed against the adjustable collar 31 so that this spring 24<SP>1</SP> does not oppose the movement. The simultaneous downward movement of the right hand stud 26 will however compress its spring 241 because its washer 27 is prevented from moving downwards by bearing on the fixed member 29. In a modified biassing spring arrangement, the armature carries two spring pressed balls, Figs. 6, 7 (not shown) which bear on the two fixed poles of the electromagnet. The polarizing means comprise two permanent magnets 2 ' 4 of triangular section, Fig. 4, with consequent poles which give the same polarity to the pole pieces 15, 16 so that current in the winding 11 strengthens one pole and weakens the other. The movable contacts comprise spring strips pressed downwards by further spring strips S4 above them.
Patent GB-982946-A (GB)
Title: Coumarin derivatives
IPC: C07D311/20
Filed: 1961-05-29
Abstract: The invention comprises compounds of the general formula <FORM:0982946/C2/1> (wherein each R1 is a hydrogen atom or a C2-6 alkanoyl radical and R2 is a straight-chain C1-5 alkyl radical) and non-toxic acid-addition salts of the compounds in which each R1 is a hydrogen atom by heating an a -(straight-chain C1-5 alkyl)- b  - (2,3 - dimethoxyphenyl) - alanine with a concentrated aqueous solution of a strong mineral acid, optionally followed by conversion of the resulting salt to the free base, and the preparation of the compounds in which each R1 is a C2-6 alkanoyl radical by acylation of a -methyl - b  - (2, 3 - dihydroxyphenyl)alanine or its hydrobromide and separation of the resulting mixture of the desired product and the corresponding N - acyl - a  - methyl - b  - (2,3 - diacyloxyphenyl) alanine.  The compounds of the invention are anti-hypertensive agents and may be administered orally or parenterally in the form of pharmaceutical preparations (e.g. tablets, capsules, aqueous suspensions and sterile solutions) containing them together with a carrier.
Patent GB-1549111-A (GB)
Title: Method of making a piezo electric vibrator
IPC: H03H9/19
Filed: 1977-01-26
Abstract: A piezoelectric vibrator element is shaped by photo-etching techniques from a quartz crystal wafer. Film electrodes and masses for frequency adjustment are applied by first depositing a layer of chromium and then a layer of gold on the element by vacuum depositing or sputtering. The element is then kept in a high vacuum of at least 10-5 torr and at a high temperature of 300 DEG  C to fix the depositions on the element and eliminate distortion. To adjust the frequency, a portion of the metal mass is removed by a laser beam, after which the element is kept in a high vacuum at high temperature to affix securely to the element any bits of metal that may have condensed during the removing step. .
Patent GB-1120463-A (GB)
Title: Derivatives of 1,3-diazafluoranthene-1-oxide
Inventor: RIDDER RENE RACHEL DE
IPC: A61K31/55
Filed: 1964-07-06
Abstract: Compounds of the general formula <FORM:1120463/C2/1> (wherein R3 and R5 are the same or different and represent hydrogen atoms or methyl or ethyl groups, R4 represents a hydrogen atom or a halogen atom in the 4- or 6-position and <FORM:1120463/C2/2> represents a nitrogen-containing heterocyclic group which may be substituted) and their acid addition salts are prepared by reacting a halo-alkyl compound of the formula <FORM:1120463/C2/3> (wherein X represents a halogen atom) with the appropriate heterocyclic amine in tetrahydrofuran, or alternatively in methanol when the amine is morpholine, optionally followed by salt formation.  The compounds of the invention are useful in sedative, tranquilizing, hypnotic, pre-narcotic, anticonvulsant, antiparkinson and antispasmodic compositions containing them in association with a carrier or excipient.
Patent GB-625872-A (GB)
Title: Improvements in the making of rubber-carbon black mixtures
IPC: C08J3/215
Filed: 1947-02-04
Abstract: Carbon black for use in rubber compounding is rendered substantially dustless by mixing a dispersion of rubber in aqueous medium or a solution of rubber in non-aqueous medium with a dispersion of carbon black in an aqueous or non-aqueous medium in such manner as to cause mutual precipitation or flocculation of the rubber and carbon black particles simultaneously to produce a slurry which can be readily filtered or centrifuged and dried, the rubber being incorporated in the proportion of from 5 - 40 parts of rubber to 100 parts of carbon black by weight.  The black is preferably dispersed in an alcohol, acetone, methyl ethyl ketone or methyl cyclohexanone together with an anionic or cationic soap or cetyl trimethyl ammonium bromide.  The rubber may be dissolved in petrol, naphtha benzene, or carbon tetrachloride or used in latex form.  Dispersions of oils, fats, waxes or fatty acids may also be added.
Patent GB-1171186-A (GB)
Title: Process for the Production of alpha,alpha-Dichlor-propionitrile
Inventor: SMEYKAL KARL
Filed: 1967-01-23
Abstract: 1,171,186. α,α - Dichloropropionitrile; α,α- dichloropropionic acid and its sodium salt. LEUNA-WERKE " WALTER ULBRICHT " VEB. 23 Jan., 1967, No. 3282/67. Heading C2C. α,α-Dichloropropionitrile is prepared by the action of Cl 2  on propionitrile in the presence of an organic compound of oxygen as a promoter in two stages. In the first stage 70-90% of the theoretical requirement of Cl 2  is reacted with propionitrile at 36-65‹ C. whilst in the second stage the remainder of the theoretical requirement of Cl 2  is reacted at 20-35‹ C., the rate of flow of chlorine during the second stage being not greater than one quarter of the average rate of flow of chlorine per unit time in the first stage. The organic compound of oxygen preferably contains its oxygen in the form of hydroxyl, carbonyl, carbalkoxy or ether groups or as a hetero-atom in a heterocyclic ring, or as a combination of these forms. The product may be hydrolysed to α,α-dichloropropionic acid which may in turn be converted to its sodium salt. Specification 979,380 is referred to.
Patent GB-176602-A (GB)
Title: Improvements in or relating to sliding glass windows
IPC: B60J10/04
Filed: 1921-01-27
Abstract: 176,602. Chambers, R. M., and Jackson, J. Jan. 27, 1921. Vehicle windows. - A holder for the closed or intermediate open positions of a sliding window, particularly a carriage window, comprises an upturned lip on the hinged weather-plate A which engages beneath a downturned part c of the bottom channel d of the glass panel. In other positions, the window is supported by projections j on a bar or bars B pivoted to the plate and a parallel link C. The window is operated by a knob i and the weather-plate by a lever h.
Patent GB-709237-A (GB)
Title: A new or improved machine for planting rice seedlings at regularly spaced distances
Filed: 1952-02-08
Abstract: 709,237. Planting seedlings. RAEBURN, C. Jan. 22, 1953 [Feb. 8, 1952], No. 3403/52. Class 6 (1) A machine for planting rioe-seedlings comprises a sledge 7, adapted to be drawn over a paddyfield and having seats for operators who insert the seedlings singly in the forked ends of seedling-carriers 21 pivotally supported by one or more endless chains 18 which are driven so that their lower runs have no movement relative to the ground as the machine advances. The chains are driven by land wheels 10 through a chaindrive 12 to a shaft 14 on which the chainsprockets 16 are mounted. Coulters 25 are aligned with the chains 18 to form furrows for the seedlings. Guides 22, 23 along the upper and lower runs of the chains 18 maintain the carriers in suitable positions for reception and release of the seedlings.
Patent GB-742880-A (GB)
Title: Improvements in and relating to operating handles for electric switches
Inventor: SIMMONDS HENRY
IPC: H01H9/28
Filed: 1953-02-06
Abstract: 742,880. Snap-action switches; switch covers. ENGLISH ELECTRIC CO., Ltd. Feb. 5, 1954 [Feb. 6, 1953], No. 3405/53. Class 38(5) The operating handle of a manually-operable switch is slidable in a pivotally-mounted member between a stored position and an operating position the switch casing having ar aperture through which the handle is adapted to pass anc the aperture having a pivoted cover which is biased to its closed position. The handle 22 is shown in its stored position in Fig. 1 where it is contained wholly within the casing 25, being slidable in a member 18 pivoted at 19 and connected by a link 17 to an over-centre sprang toggle 10, 12 the mid-point 14 of which is connected by a link 15 and pin-and-slot 7 to a contact and fuse carrier 5. The cover 30 is pivoted at 32 tc a member 31 secured to the outer face of a door 26 of the casing and has a portion 34 which is depressed to open the cover to obtain access to the handle which may then be moved to the operating position, Fig. 3. The cover 30 may be secured by a bolt 45 controlled by a lock 44 which also moves a bolt 47 behind a flange 29 on the casing so as to lock the door 26. The door 26 is sandwiched between the member 31 and a box member 37, the latter having a slot through which the member 18 extends. This slot has an arcuate wall 38 having a gap in a position corresponding to the open position of the handle 22 so that a pin 39 on member 18 can only pass through the gap to allow removal of door 26 when the switch is open. In addition, a fixed part 20 carries a spring-biased member 43 having a pin 41 which enters a hole 42 in the member 18 which is thereby locked in the open position, when the door 26 and member 37 are withdrawn. Specification 742,881 is referred to.
Patent GB-545273-A (GB)
Title: Improvements relating to gas cookers
IPC: F24C3/08
Filed: 1941-03-13
Abstract: 545,273. Gas cookers. RADIATION, Ltd., HARTLEY, H., and LAKE, F. March 13, 1941, No. 3427. [Class 126] In a gas cooker of the kind in which the oven is heated by a long burner b arranged parallel with and adjacent to one of the oven walls the upper part of the burner enclosure a is provided on the side remote from the neighbouring oven wall f with an overhanging lip g extending into close proximity to the hot stream of gases rising vertically from the burner and causing the stream to bend over slightly away from the wall f on entering the oven. The lip g may be integral with, separate from, or adjustably mounted on the enclosure a or the oven base c. The opposite edge h of the enclosure opening is some distance from the hot stream. Air is admitted to the enclosure a through an opening i.