baber/WOPTO huggingface dataset:
Patent YU-11895-A (YU)
Title: Postupak prerade materijala i koncentrata koji se teško razlažu a sadrže srebro i zlato
Inventor: AHMEDOVIC M M
Filed: 1995-02-23
Abstract: POSTUPAK PRERADE MATERIJALA I KONCENTRATA KOJI SE TEŠKO RAZLAŽU A SADRŽE SREBRO I ZLATO, pronalazak obuhvata bezcijanidni postupak prerade materijala (rude i koncentrata), koji se teško razlažu, a sadrže srebro i zlato. Predloženi postupak obuhvata hidrometaluršku obradu isitnjenog materijala, primenom mineralnih kiselina koje rastvaraju zlato i srebro i omogućavaju njihov prelaz u rastvor. Iz rastvora se zlato i srebro talože standardnim postupcima. Predloženi postupak se karakteriše hidrometalurškom obradom polaznog materijala, održavanjem ukupne koncentracije mangan oksida preračunato na mangan dioksid (piroluzit) od 3-6% mas. Hidrometalurška obrada se izvodi rastvorom mineralnih kiselina, koje sadrže jone sposobne da obrazuju komplekse; u koncentraciji od 70 - 150 g/dm3.
Patent YU-18892-A (YU)
Title: Čaura omotača za nepovratni ventil
Inventor: PARDES G
Filed: 1992-02-24
Abstract: ČAURA OMOTAČA ZA NEPOVRATNI VENTIL, pronalazak se odnosi na čauru omotač (34) nepovratnog ventila koja pritiska  jednu navlaku (28) od elastomera uz telo (14) ventila da obezbedi zaptivanje izmedju navlake (28) i tela (14) ventila. Na spoljnoj površini (14a) tela (14) ventila obrazovani su prstenasti žljebovi u koje su smešteni O-prstenovi (30), preko kojih tesno naleže čaura (34). Pored toga, čaura (34) može imati poklopac (14b) iznad izlaznog kraja (18) tela ventila koji zaštićuje izlaz od zaprljavanja ili dodira sa zaprljanim površinama.
Patent YU-28598-A (YU)
Inventor: SUN GUANGLIN
IPC: A01N25/08
Filed: 1998-07-08
Abstract: Ovaj pronalazak daje unapredjene obložene pesticidne matrice i proces za njihovo dobijanje. Ovaj pronalazak takodje daje kvašljivi pesticidni sastav u prahu koji sadrži unapredjene pesticidne matrice.
Patent YU-35692-A (YU)
Title: Postupak za dobijanje alkilen oksida
Inventor: PENNINGTON B T
Filed: 1992-04-03
Abstract: POSTUPAK ZA DOBIJANJE ALKILEN OKSIDA, opisan je postupak za oksidaciju gasovitih ugljovodonika, poželjno propilena, bez katalizatora. Smesa propilena kiseonka i inertnog razblaživača se uvodi u reaktor koji je osposobljen za održavanje izotermičke reakcije. Održavajući temperaturu u opsegu od oko 200В°C do oko 350В°C i parcijalni pritisak propilena na oko 0,55 MPa do oko 2,07 MPa obezbedjuje se najviša selektivnost propilen oksida.
Patent YU-36194-A (YU)
Title: Izmenjivač toplote za protočne bojlere
Inventor: ZLATKO VUCKOVIC
Filed: 1994-06-14
Abstract: Predmet pronalaska je izmenjivač toplote za protočne bojlere velikih snaga kod kojih se pomoću tri cilindra (4, 7, 10) sa grejačima (5,8, 11) razmenjuje toplote između njih. Cilindri su pričvršćeni za ploču (2) od izolacionog materijala na kojoj su na donjoj strani izvedeni priključci (1,13). Putem kanala kroz ploču omogućena je razmena toplote, odnosno protok vode bez spoljnih cevi. Na ploči (2) je montiran hladnjak (15) koji je izrađen od materijala dobre toplotne provodljivosti i na kome se montiraju elektronski prekidački dementi (tiristori, trijaci). Pre nego što bude usmerena u prvi cilindar (4) sa grejačem vode prethodno oduzme temperaturu sa hladnjaka (15) koja je proizvedena kao posledica zagrejavanja trijaka. Ploča (2) izmenjivača toplote ima višestruku funkciju: služi kao noseća ploča svih elemenata, povezuje redno sva tri grejača bez spoljnih cevi, potpuno galvanski odvaja korisnika od električne instalacije i smanjuje dimenzije aparata.
Patent YU-69896-A (YU)
Inventor: JOACHIM EICHER
IPC: A61M15/00
Filed: 1996-12-25
Abstract: Pronalazak se odnosi na mehanički brojač za dozator, kojim se npr. dozira medikament, neophodan je uredjaj, koji pokazuje broj doza. Mehanički brojač za takav dozator se sastoji od bar jednog vretena (4) sa zaustavljačem obrtanja, čija osa prolazi paralelno osi dozatora, i leži u okolini površine omotača uredjaja. Vreteno (4) je obrtno uležišteno pomoću dva elastična ležaja (5, 6). Žljebom (7) vreteno (4) se aksijalno fiksira.Pomoću mehaničkog brojača kvazikontinutalno se pokazuje broj već datih doza, kao i broj ukupno dozvoljenih doza. Prenosni odnos može biti u širokom opsegu. Jahač (9), koji služi za pokazivanje, je povratan po vretenu (4).
Patent YU-72095-A (YU)
Inventor: GAMBLIN ALAN
IPC: A01N43/80
Filed: 1995-11-16
Abstract: NOVE HERBICIDNE KOMPOZICIJE - Pronalazak se odnosi na nove herbicidne kompozicije koje obuhvataju: (a) 4-benzoilizoksazol formule (I): u kojoj R, R1, R2 i n su kao što je definisano u opisu; a (b) 2,6-dinitroanilin herbicid; i na postupak za suzbijanje rasta korova na osnovu delovanja navedenih herbicidnih komponenata koje imaju sinergijski efekat.
Patent YU-75093-A (YU)
Inventor: BECHER F
IPC: A61M37/00
Filed: 1993-12-02
Abstract: A transdermal therapeutic system for antithrombotic therapy is disclosed. The system comprises a hydrophobic polymer matrix, acetic anhydride, and acetylsalicylic acid as the only active ingredient.
Patent YU-80293-A (YU)
Inventor: DAVIS H R
IPC: C07J9/00
Filed: 1993-12-21
Abstract: PCT No. PCT/US93/12291 Sec. 371 Date Jun. 20, 1995 Sec. 102(e) Date Jun. 20, 1995 PCT Filed Dec. 21, 1993 PCT Pub. No. WO94/14433 PCT Pub. Date Jul. 7, 1994Methods of reducing plasma cholesterol levels and treating or preventing atherosclerosis comprising administering an effective amount of a combination of a cholesterol biosynthesis inhibitor and a  beta -lactam cholesterol absorption inhibitor, as well as pharmaceutical compositions and kits useful in those methods, are disclosed.
Patent BE-812657-A (BE)
Title: 6-Pyrimidyl phosphate derivs prepn - from 6-hydroxy cpd in two stages, used as insecticides and acaricides
IPC: C07F9/6512
Filed: 1974-03-21
Abstract: Title cpds of formula (I) (where x is R1 and R3 are alkyl; R2 is H or alk(en)yl; R4 is alkyl, NR5R6, OR6 or SR7; R5 and R6 are alkyl or H, or together complete a heterocycle, or R6 may also be acyl; R7 is alkyl; Q and Y are O or S; n = 0 or 1; Z is OR8, SR8 or NR9R10 R8 is alkyl; and R9 and R10 are H or alkyl, or together complete a heterocycle) are prepd. by (1) reacting (I: X = H or metal cation) with (Hal)2 P(=Y) (OR1) (where Hal is Cl or Br) in presence of an acid acceptor, and (z) reacting with MZ (where M is H or if Z is OR8 or SR8, a metal cation) pref. in presence of an acid acceptor if M is H. Process gives (I) in high yield and sufficient purity for use in plant protection.
Patent BE-893535-A (BE)
Title: Bi:phenyl-methyl ester intermediates for cyclopropane-carboxylate(s) - i.e. intermediates for 1,1'-bi:phenyl-3-yl-methyl 3-2-chloro-3,3,3-tri:fluoro-propenyl- 2,2-di:methyl-cyclopropane carboxylate derivs.
Inventor: CRUICKSHANK P
IPC: A01N53/00
Filed: 1982-06-16
Abstract: 2-R1-3-phenyl-6-R2-benzyl R-carboxylates of formulae (II), (III) and (IV) are new cpds. (where R is CH2=CH-C(CH3)-CH2- (Cpd. (II)), CF3-CCl2-CH2-CHCl-C(CH3)2-CH2- (Cpd. (III)) or 2,2-dimethyl-3-(CF3-CCl2-CH2) cyclopropyl (Cpd. (IV)) and R1, R2 independently are H, halo or 1-4C alkyl). Pref. cpds. are those where R1, R2 are both H and R1 is methyl and R2 is H or methyl. The new cpds. are intermediates for the prepn. of insecticidal 2-R1-3-phenyl-6-R2-benzyl 2,2-dimethyl-3- (2-trifluoromethyl-2-chloro-vinyl) -cyclopropane-1-carboxylates, (I), by claimed processes. (I) are described in US4238505 in which (I) are prepd. by dehydrohalogenation of a lower alkyl 3,3-dimethyl-4,6,6-trichloro-7,7,7-trifluoroheptanoate and trans esterification of the prod. Using the present intermediates, no trans-esterification stage is necessary.
Patent BE-898244-A (BE)
Title: Electric machine using disc and permanent magnet excitation - has disc rotor carrying high coercivity permanent magnets and uses armature windings, set in epoxy, facing magnets
IPC: H02K21/24
Filed: 1983-11-17
Abstract: The machine can function either as a generator or a motor, and uses permanent magnet excitation with a wound armature in a disc configuration. The permanent magnet material permits high flux density (0.2-0.5 Tesla) with air gaps of 0.5-3 cm, thus permitting the use of armature windings set in epoxy rather than in a laminated iron stack. - The machine is constructed in disc format with the rotor mounted on a shaft which runs in bearings carried in the stator frame. The rotor may carry either the field or the armature, and the stator either armature or field. No brushes are needed if the field is carried on the rotor.(0/3)
Patent BE-898712-A (BE)
Title: Raccordement articule de deux tubes
Inventor: ARNOLD H
IPC: F16D3/40
Filed: 1984-01-19
Abstract: Raccordement articulé de deux tubes 1,2, caractérisé en ce que les extrémités de tube du coté articulation sont façonnées en forme de fourche et sont réalisées sous la forme de poche de réception 3 présentant une ouverture 4 du coté frontal pour l'enfoncement d'une pièce en forme de fourche 6 recevant un tourillon 14 et en ce que la pièce en forme de fourche est fixée dans la poche de réception.
Patent BE-898945-A (BE)
Title: Commande de protection de la flexion
Inventor: REICHL B
IPC: B62D53/00
Filed: 1984-02-17
Abstract: Commande de protection de la flexion pour des véhicules articulés comprenant un bloqueur d'articulation qui est commandé par un calculateur, caractérisée en ce que le calculateur calcule et respectivement prédétermine des valeurs limites d'angle de flexion K max(V) en fonction de la vitesse V, qui peuvent s'établir au maximum pour un parcours essentiellement sans glissement, et en ce qu'il commande le bloqueur d'articulation de façon à s'opposer à un dépassement de la valeur limite d'angle de flexion.
Patent BE-903243-A (BE)
Title: Nouveau colorant nitre benzenique, son procede de preparation et son utilisation en teinture de fibres keratiniques
Inventor: GROLLIER J-F
IPC: C07C213/00
Filed: 1985-09-16
Abstract: Nouveau colorant nitré benzénique de formule I et les sels cosmétiquement acceptables de ce composé, ainsi que son procédé de préparation par condensation du 3-amino propanol-1 sur le 2-fluoro-5-N,N-bis (beta-hydroxyéthyl) amino nitrobenzène. Ce colorant bleu présente une excellente solubilité dans l'eau, le mélange eau/alcool et les supports de teinture usuels. De plus, lorsqu'il est utilisé en association avec un ou plusieurs colorants nitrés benzéniques jaunes et éventuellement d'autres colorants directs, il donne, notamment sur cheveux sensibilisés par un traitement tel qu'une décolorantion ou une permanente, des nuances naturelles ayant une bonne solidité à la lumière et au lavage.
Patent BE-773412-A (BE)
Title: Ceramic articles prodn - from two separate components,one of which is frozen before use
Inventor: BOWERS E C
IPC: B28B1/00
Filed: 1971-10-01
Abstract: Method of treating e.g. handles of clay prior to fixing to e.g. cups, etc. is one in which the handle etc are frozen after forming, then unfrozen just before use. In the meantime, to remove moulding flash, they are immersed in a mass of mobile particles with a polishing medium in a vibrating drum. The process overcomes problem of loss of moisture on storage.
Patent BE-785142-A (BE)
Title: Photosensitive material - chromate/gelatine on non-distorting support eg polyester gives better reproduction than paper support
Inventor: SADIKOVA M S
IPC: G03F7/04
Filed: 1972-06-20
Abstract: Photosensitive material comprising a support, the linear distortion of which is not >0.005%, on which is coated a gelatine sub-layer followed by a chromate/gelatin layer. The support of microrugosity value is not >0.01 mu is pref. polyester, polystyrene acetyle cellulose. The specified photosensitive compsn. is gelatine (130-140 g.), pigment (18-22 g.), soap (12-25 g.), glycerol (20-25 g.), ethanol, (30-35 g.), ammonium chromate (5-6g.), tartaric or citric acid (1.5-3 g.) and tartrazine (0.6 g.). Paper as a support is subject to distortion and also it is difficult to obtain a uniform coating.
Patent CA-1047244-A (CA)
Inventor: FUKAI MASAKAZU
IPC: C09K19/54
Filed: 1973-03-30
Granted: 1979-01-30
Abstract: ABSTRACT OF THE DISCLOSURE    A liquid crystal composition comprises a liquid crystal and a carboxylic acid or its ester as an additive.  By the presence of the additive, the longitudinal axes of liquid crystal molecules can be spontaneously oriented in a direction perpendicular to the surface of a holding wall of a liquid crystal display plate.  In particular, the additives may be esters of p-hydroxy- or m-hydroxy-benzoic acid, phenylacetic acids having 1 or 2 hydroxy groups or their esters, phenylpropionic acids having 1 or 2 hydroxy groups or their esters, or 3,4,5-trihydroxybenzoic acid esters, or the additive may be selected from the group consisting of com-pounds having the formulae:       wherein R3 is hydrogen or a normal alkyl group having 1 to 18 carbon atoms; R5 is hydrogen, hydroxy, a normal alkyl group having 1 to 16 carbon atoms or a normal alkoxy group having 1 to 16 carbon atoms; R6 is hydrogen, hydroxy or nitro; n1 is 1 or 2; and n2 is 0, 1 or 2.
Patent CA-1045881-A (CA)
Inventor: KITANISHI YASUHISA
IPC: G03F7/11
Filed: 1974-04-11
Granted: 1979-01-09
Abstract: ABSTRACT             A support for a liquid photosensitive resin in a printing plate is disclosed.  The support comprises a flexible self-supporting base plate and an adhesive layer thereon for applying a layer of a photosensitive resin. The adhesive layer is a layer of a cross-linked polyester-polyurethane resin formed by reacting (A) a linear polyester-polyurethane resin with (B) a poly-functional isocyanate on the surface of said base plate.
Patent CA-1050167-A (CA)
Inventor: CHAIRES ANNE M
IPC: G06V30/262
Filed: 1974-09-19
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE:        An online numeric discriminator is disclosed which performs the decision making process between strings of characters coming from a dual output optical character recognition system for use in text processing or mail processing applications.  The dual output OCR uses separate recognition processes for alphabetic and numeric characters and attempts to recognize each character independently as both an alphabetic and a numeric character.  The alphabetic interpretation of the scanned word is outputted as an alphabetic subfield on a first output line and the numeric interpretation of the scanned word is outputted as a numeric subfield on a second output line from the OCR.  The bayesian online numeric discriminator then analyzes the two character streams by calculating a first conditional probability that the OCR perceived the alphabetic subfield given that a numeric subfield was actually scanned and a second conditional probability that the OCR perceived the numeric subfield given that an alphabetic subfield was actually scanned.  These first and second conditional probabilities are then compared.  If the conditional probability that the OCR read the alphabetic subfield given that the numeric subfield was actually scanned, is larger than the conditional probability that the OCR read the numeric subfield given that the alphabetic subfield was actually scanned, then the numeric subfield is selected by the discriminator as the most probable interpretation of the word scanned by the OCR.
Patent CA-1051463-A (CA)
Inventor: MORRISON ROGER A
IPC: B01J29/00
Filed: 1974-12-13
Granted: 1979-03-27
Abstract: DISPROPORTIONATION OF TOLUENE            Abstract of the Disclosure Toluene is disproportionated in high yield with unusually low hydrogen consumption by the use of a specific group of catalysts.  The operation is carried out in the vapor phase for extremely long on-stream periods and comprising contacting toluene at a temp-erature between 650°F. and 1000°F., a hydrogen to hydro-carbon mole ratio of between 0 and 5, a pressure between atmospheric and 1000 psig, and a weight hourly space velocity between about 1 and 20, with a catalyst com-prising a crystalline aluminosilicate zeolite of the ZSM-5 family which zeolite is at least partly in the hydrogen form.
Patent CA-1052504-A (CA)
Inventor: RETZSCH CLINTON E
IPC: C14C9/00
Filed: 1975-06-03
Granted: 1979-04-17
Abstract: IMPROVED NON-REWET LEATHER AND    METHOD OF PRODUCING SAME     ABSTRACT    The present invention relates to the treatment of leather and more par-ticularly to a novel non-rewet dry cleanable leather, and the treatment method by which it is produced.
Patent CA-1177069-A (CA)
Inventor: HASSALL CEDRIC H
IPC: C07D243/16
Filed: 1975-08-19
Granted: 1984-10-30
Abstract: ABSTRACT    The invention provides substituted-phenyl ketones of the general formula     I    , wherein A represents a nitrogen atom which may be substituted by a methyl, cyclopropyl-methyl, di(C1-4 alkyl)aminoethyl, methoxy-methyl or hydroxyethyl group and B represents a carbonyl group or A and B together represent a grouping of the formula                 I in which Ra represents a hydrogen atom or a lower alkyl or hydroxymethyl group and X represents a nitrogen atom or C-Rb wherein Rb represents a hydrogen atom or a lower alkyl or hydroxymethyl group; R represents a halogen atom or a nitro or trifluoromethyl group; R1 represents a hydrogen atom or a lower alkyl group; R2 represents an acyl group derived from a naturally occurring amino acid (all such groups which contain an asymmetric carbon atom having the L- or D,L-configuration) and R3 represents a phenyl, halophenyl or 2-pyridyl group, and acid addition salts thereof which possess sedative, muscle relaxant and anti-convulsant activity.
Patent CA-1060889-A (CA)
Inventor: YOUNGDALE GILBERT A
IPC: A61K31/5575
Filed: 1975-08-26
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE 2a,2b-Dihomo-15-methyl and 15-ethyl PGF- and PGE-type compounds are disclosed with processes for making them. These compounds are useful for a variety of pharmacological purposes, including anti-ulcer, inhibition of platelet aggregation, increase of nasal patency, labor inducement at term, and wound healing.
Patent CA-1059224-A (CA)
Inventor: ROOS JAN
IPC: H03C1/46
Filed: 1975-08-28
Granted: 1979-07-24
Abstract: Abstract:           A device for scanning patterns, e.g. optical patterns, in which on the surface of a piezo-electric material Bleustein-waves are produced, whilst in the material or in a semi-conductor layer deposited on the surface a drift field is produced.  Said drift field pulsates between two levels, a low level at which the gain of the surface wave is independent of the "exposure" pattern and a high level at which the surface wave is lo-cally amplified in accordance with the "exposure" pattern.
Patent CA-1037999-A (CA)
Inventor: REED KENNETH E
IPC: B05B1/34
Filed: 1975-10-14
Granted: 1978-09-05
Abstract: ABSTRACT OF THE DISCLOSURE       In a low drift spray nozzles and a method of applying low drift sprays, liquid is formed in large droplets by imparting a swirling motion to the liquid in a chamber of the nozzle, passing the swirling liquid through a first orifice into another chamber of the nozzle which is larger in cross section than the orifice, and discharging the swirling liquid from the last mentioned chamber through a second orifice which is at least as large in cross section as the first orifice, whereby the discharged liquid forms a hollow geometric shape having large droplets of the liquid therein.
Patent CA-1061997-A (CA)
Title: Composition containing a polyvinylpyrrolidone and method for stimulating well production
Inventor: TATE JACK F
IPC: E21B43/00
Filed: 1975-10-27
Granted: 1979-09-11
Abstract: ABSTRACT OF THE DISCLOSURE      The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one containing clays or siliceaous minerals as exemplified by sandstone, shale, etc. is stimulated by injecting into the formation a composition comprising an aqueous solution of a mineral acid and a flourine-containing acid or salt and having dissolved therein a vinylpyrrolidone polymer.  The in-depth increase in the permeability and porosity of the formation achieved utilizing the method of invention results in a substantial improvement in hydrocarbon recovery.
Patent CA-1068862-A (CA)
Inventor: GORDON WOLFGANG
IPC: C08L21/00
Filed: 1975-11-27
Granted: 1980-01-01
Abstract: PROCESS FOR MAKING HYDROPHILIC POLYOLEFIN FIBERS            CONTAINING CLAY Abstract of the disclosure:    Hydrophilic polyolefin fibers containing more than 50% by weight of clay are   obtained by passing a mixture, which is kept under pressure and consists of a polyolefin, a solvent for the said polyolefin,  clay,   a hydrophilization agent, water and an amine, through a nozzle into a zone of low pressure. The fibers obtained can be used, with small expenditure for working up, for the manufacture of synthetic paper.
Patent CA-1058616-A (CA)
Inventor: STERNE JEAN-JACQUES
IPC: C07D261/14
Filed: 1976-01-13
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to compounds having the general formula:                                (I) in which n1 and R2, which may be the same or different, represent each a hydrogen atom, a C1-C6 alkyl radical or a C3-C6 cycloalkyl radical; R3 represents a hydrogen atom or a C1-C4 alkyl radical; R4 and R5, which may be the same or different, represent a hydrogen atom, a C1-C6 alkyl radical or, together with the nitrogen atom to which they are attached, form a pyrrolidino, piperi-dino, morpholino or piperazinyl radical optionally substituted with a C1-C4 alkyl radical, or a 4-hydroxy-piperidino radical, and their pharmaceutically acceptable acid eddition salts.     Said compounds are therapeutically useful for the control of the cardio-vascular system and of the blood pressure.
Patent CA-1048654-A (CA)
Inventor: TAMURA RONALD K
IPC: H01L27/12
Filed: 1976-01-19
Granted: 1979-02-13
Abstract: HIGH SPEED HIGH YIELD CMOS/SOS PROCESS          Abstract of the Disclosure The specification discloses a high speed, high yield process for the production of complementary metal-oxide semiconductor devices in silicon on sapphire (CMOS/SOS devices).          The process involves providing a wafer comprising a layer of silicon on a sapphire substrate, forming the silicon into several independent islands, masking selected portions of the islands, applying a material to alter the conductivity of the unmasked portions, oxidizing the islands, applying a silicon nitride layer over the surface of the substrate and islands, masking portions of the nitride layer and etching unmasked portions as well as the unmasked oxide layer, applying a second material to the unmasked portions in order to alter the conductivity of the unmasked portions of the islands, oxidizing the islands, selectively masking and etching portions of the oxidized islands, and applying conductors to the exposed portions of the silicon islands to function as contacts.  This process yields low resistance n-type silicon regions where desired, while providing high yield and high speed production.
Patent CA-1036329-A (CA)
Inventor: LUNDBERG GEORGE A
IPC: F16K35/12
Filed: 1976-01-27
Granted: 1978-08-15
Abstract: SEAL     Abstract of the Disclosure A seal for use with a device having an operating handle disposed on a handle support with apertures in the handle and support which are aligned when the handle is in the non-operating position.  The seal comprises a rigid pin sized to closely fit and extend through the apertures and project from each side of the handle.  A socket is disposed at one end of the pin and a flexible shackle extends from the opposite end of the pin.  The shackle has a central core having a diameter substantially less than that of the pin so as to be easily bendable, and a series of locking enlargements formed thereon.  The enlargements have a diameter not greater than that of the pin, and having a length such that it can pass around the handle and enter the socket.  The socket has means for receiving the locking enlargements in non-separable engage-ment.